@A318/A319/A320/A321: Chapter 25 - Equipment/Furnishings

@A318/A319/A320/A321
TROUBLE SHOOTING MANUAL
CHAPTER 25 - EQUIPMENT/FURNISHINGS
TABLE OF CONTENTS
REFERENCE SUBJECT
CHAPTER 25
25-11-00 COCKPIT SEATS
25-11-00 PB 201 COCKPIT SEATS - FAULT ISOLATION PROCEDURES
25-11-00-810-801-A Vertical Electrical Control of the Captain Seat Inoperative
25-11-00-810-802-A Vertical Electrical Control of the First Officer Seat Inoperative
25-11-00-810-803-A Horizontal Electrical Control of the Captain Seat Inoperative
25-11-00-810-804-A Horizontal Electrical Control of the First Officer Seat Inoperative
25-11-00-810-805-A Electrical Controls of the Captain Seat Inoperative
25-11-00-810-806-A Electrical Controls of the First Officer Seat Inoperative
25-11-00-810-807-A Manual Controls of the Captain Seat Inoperative
25-11-00-810-808-A Manual Controls of the First Officer Seat Inoperative
25-11-00-810-809-A Lumbar Rest Adjustment of the Captain Seat Inoperative
25-11-00-810-810-A Lumbar-Rest Adjustment of the First Officer Seat Inoperative
25-11-00-810-811-A Adjustment of the Captain Seat Armrest Inoperative
25-11-00-810-812-A Adjustment of the First-Officer Seat Armrest Inoperative
25-11-00-810-813-A Third Occupant Seat Inoperative
25-11-00-810-814-A Fourth Occupant Seat Inoperative
25-11-00-810-815-A Safety Harness of the Cockpit Seats Inoperative
25-11-00-810-816-A Floor Lighting on the Cockpit Seats Inoperative
25-21-00 PASSENGER COMPARTMENT SEATS

25-21-00 PB 201 PASSENGER COMPARTMENT SEATS - FAULT ISOLATION
PROCEDURES
25-21-00-810-801-A The ON lamp of the PED switch in the cabin does not come on
25-21-00-810-821-A The PED Power supply is available during the operational test of the
passenger emergency oxygen system
25-21-00-810-865-A No Electrical Power from FWD Master Control Unit (MCU)
25-21-00-810-866-A PED Supply is not available at one Seat Assembly
25-21-00-810-867-A PED Supply is not available at one Seat Group
25-21-00-810-870-A Ground Fault Interupt detected
25-27-00 ANCILLARY EQUIPMENT

25-27-00 PB 201 ANCILLARY EQUIPMENT - FAULT ISOLATION PROCEDURES
25-27-00-810-807-A EQUIP/FURNIS - DOOR AREA HEATING - One heated floor panel is
INOP
25-27-00-810-808-A EQUIP/FURNIS - DOOR AREA HEATING - DOOR 1 LH - All heated
floor panels are INOP
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REFERENCE SUBJECT
25-27-00-810-809-A EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are
INOP
25-27-00-810-810-A EQUIP/FURNIS - DOOR AREA HEATING - DOOR 1 RH - All heated
floor panels are INOP
25-34-00 GALLEY COOLING

25-34-00 PB 201 GALLEY COOLING - FAULT ISOLATION PROCEDURES
25-34-00-810-801-A System Fault Light of the Air Chiller is on
25-34-00-810-802-A Trolley or Trolley Compartment is not cooled
25-35-00 GALLEY EQUIPMENT

25-35-00 PB 201 GALLEY EQUIPMENT - FAULT ISOLATION PROCEDURES
25-35-00-810-802-A Coffee-Maker does not operate
25-35-00-810-804-A Oven does not operate
25-35-00-810-806-A Steam-Oven does not operate
25-35-00-810-807-A Beverage-Maker does not operate
25-35-00-810-812-A Water-Heater/Boiler does not operate
25-35-00-810-819-A Unusual noise behind an oven or a steam oven
25-62-00 ESCAPE FACILITIES - CABIN

25-62-00 PB 201 ESCAPE FACILITIES - CABIN - FAULT ISOLATION PROCEDURES
25-62-00-810-801-A Fault in the Slide Bottle Pressure for the LH FWD Pax Door
25-62-00-810-802-A Fault in the Slide Bottle Pressure for the RH FWD Pax Door
25-62-00-810-803-A Fault in the Slide Bottle Pressure for the LH AFT Pax Door
25-62-00-810-804-A Fault in the Slide Bottle Pressure for the RH AFT Pax Door
25-62-00-810-805-A Fault in the Slide Bottle Pressure for the LH Emergency Exit
25-62-00-810-806-A Fault in the Slide Bottle Pressure for the RH Emergency Exit
25-62-00-810-811-A Escape Slide/Escape Slide (Raft) Light for the LH FWD Passenger/Crew
Door Inoperative
25-62-00-810-812-A Escape Slide/Escape Slide (Raft) Light for the RH FWD Passenger/Crew
Door Inoperative
25-62-00-810-813-A Escape Slide Light for the LH Emergency Exits Inoperative
25-62-00-810-814-A Escape Slide Light for the RH Emergency Exits Inoperative
25-62-00-810-819-A Escape Slide/Escape Slide (Raft) Light for the LH AFT Passenger/Crew
Door Inoperative
25-62-00-810-820-A Escape Slide/Escape Slide (Raft) Light for the RH AFT Passenger/Crew
Door Inoperative
25-62-00-810-821-A Fault of the Operational Test of the Offwing Escape-Slides
25-62-00 PB 301 ESCAPE FACILITIES - CABIN - TASK SUPPORTING DATA
25-62-00-11300-A Cabin Escape Facilities - Escape Slide and Slide/Raft Location
25-62-00-11400-A Inflation Reservoir Pressure-Gage - Location
BKP T.O.C. Page 2

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COCKPIT SEATS - FAULT ISOLATION PROCEDURES

** On A/C ALL
Task 25-11-00-810-801-A
Vertical Electrical Control of the Captain Seat Inoperative
1. Possible Causes
. SEAT-CAPTAIN (3MS)
2. Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
AMM 25-11-00-710-001 Operational Test of the Captain and First Officer Seats
AMM 25-11-51-000-001 Removal of the Captain/First Officer Seat
AMM 25-11-51-400-001 Installation of the Captain/First Officer Seat
3. Fault Confirmation
A. Test
(1) Do the operational test of the Captain and First Officer seats (3MS, 4MS) (Ref. AMM
25-11-00-710-001).
NOTE : Do the test for the Captain seat only.

4. Fault Isolation
A. If during the operational test the vertical electrical control of the Captain seat is inoperative:
. replace the SEAT-CAPTAIN (3MS) (Ref. AMM 25-11-51-000-001) and (Ref. AMM 25-11-51-400-001).
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** On A/C ALL
Task 25-11-00-810-802-A
Vertical Electrical Control of the First Officer Seat Inoperative
1. Possible Causes
. SEAT-F/O (4MS)
A. Test
25-11-00-710-001).
NOTE : Do the test for the First Officer seat only.

4. Fault Isolation
A. If during the operational test the vertical electrical control of the First Officer seat is inoperative:
. replace the SEAT-F/O (4MS) (Ref. AMM 25-11-51-000-001) and (Ref. AMM 25-11-51-400-001).
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** On A/C ALL
Task 25-11-00-810-803-A
Horizontal Electrical Control of the Captain Seat Inoperative
1. Possible Causes
A. Test
25-11-00-710-001).

4. Fault Isolation
A. If during the operational test the horizontal electrical control of the Captain seat is inoperative:
. replace the SEAT-CAPTAIN (3MS) (Ref. AMM 25-11-51-000-001) and (Ref. AMM 25-11-51-400-001).
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** On A/C ALL
Task 25-11-00-810-804-A
Horizontal Electrical Control of the First Officer Seat Inoperative
1. Possible Causes
. SEAT-F/O (4MS)
A. Test
25-11-00-710-001).
NOTE : Do the test for the First Officer seat only.

4. Fault Isolation
A. If during the operational test the horizontal electrical control of the First Officer seat is inoperative:
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** On A/C ALL
Task 25-11-00-810-805-A
Electrical Controls of the Captain Seat Inoperative
1. Possible Causes
. horizontal-travel electrical-control switch
. vertical-travel electrical-control switch
. wiring between the Captain seat (3MS) and the circuit breaker (1MS1)
. C/B-COCKPIT SEATS/SEAT CTL/CAPT (1MS1)
ASM 25-11/01
AMM 25-11-69-000-001 Removal of the Captain (First Officer) Seat Pan and Base Accessories
AMM 25-11-69-400-001 Installation of the Captain (First Officer) Seat Pan and Base Accessories
A. Test
25-11-00-710-001).
NOTE : Do the test of the Captain seat only.

4. Fault Isolation
A. If during the operational test the Captain seat electrical controls are inoperative:
. do a check of the configuration of the circuit breaker (1MS1) on the panel 122VU.
(1) If the circuit breaker is closed:
. do a check for 115VAC at pins A-B-C of the Captain seat (3MS) (Ref. ASM 25-11/01).
(a) If there is 115VAC:
. replace the horizontal-travel electrical-control switch and the vertical-travel electrical-control
switch
(Ref. AMM 25-11-69-000-001) and (Ref. AMM 25-11-69-400-001).
1 If the fault continues:
. replace the SEAT-CAPTAIN (3MS) (Ref. AMM 25-11-51-000-001) and (Ref. AMM
25-11-51-400-001).
(b) If there is no 115VAC:
. do a check for a ground signal at pin D of the Captain seat (3MS) (Ref. ASM 25-11/01).
1 If there is no ground signal:
. repair the above wiring.
2 If there is a ground signal:
. do a check of the wiring between the Captain seat (3MS) and the circuit breaker
(1MS1) (Ref. ASM 25-11/01).
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a If there is no continuity:
b If there is continuity:
. replace the C/B-COCKPIT SEATS/SEAT CTL/CAPT (1MS1).
(2) If the circuit breaker is open:
. close it.
(a) If it trips again:
25-11-51-400-001).
. do a check for a short to ground at the wiring between the Captain seat (3MS) and the
circuit breaker (1MS1) (Ref. ASM 25-11/01).
a If there is a short to ground:
b If there is no short to ground:
. replace the C/B-COCKPIT SEATS/SEAT CTL/CAPT (1MS1).
B. Do the test given in Para. 3.
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** On A/C ALL
Task 25-11-00-810-806-A
Electrical Controls of the First Officer Seat Inoperative
1. Possible Causes
. horizontal-travel electrical-control switch
. vertical-travel electrical-control switch
. SEAT-F/O (4MS)
. wiring between the First Officer seat (4MS) and the circuit breaker (1MS2)
. C/B-COCKPIT SEATS/SEAT CTL/F/O (1MS2)
ASM 25-11/01
AMM 25-11-69-000-001 Removal of the Captain (First Officer) Seat Pan and Base Accessories
AMM 25-11-69-400-001 Installation of the Captain (First Officer) Seat Pan and Base Accessories
A. Test
25-11-00-710-001).
NOTE : Do the test of the First Officer seat only.

4. Fault Isolation
A. If during the operational test the First Officer seat electrical controls are inoperative:
. do a check of the configuration of the circuit breaker (1MS2) on the panel 122VU.
(1) If the circuit breaker is closed:
. do a check for 115VAC at pins A-B-C of the First Officer seat (4MS) (Ref. ASM 25-11/01).
(a) If there is 115VAC:
. replace the horizontal-travel electrical-control switch and the vertical-travel electrical-control
switch
(Ref. AMM 25-11-69-000-001) and (Ref. AMM 25-11-69-400-001).
. replace the SEAT-F/O (4MS) (Ref. AMM 25-11-51-000-001) and (Ref. AMM
25-11-51-400-001).
(b) If there is no 115VAC:
. do a check for a ground signal at pin D of the First Officer seat (4MS) (Ref. ASM 25-11/01).
1 If there is no ground signal:
2 If there is a ground signal:
. do a check of the wiring between the First Officer seat (4MS) and the circuit breaker
(1MS2) (Ref. ASM 25-11/01).
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a If there is no continuity:
b If there is continuity:
. replace the C/B-COCKPIT SEATS/SEAT CTL/F/O (1MS2).
(2) If the circuit breaker is open:
. close it.
(a) If it trips again:
25-11-51-400-001).
. do a check for a short to ground at the wiring between the First Officer seat (4MS) and
the circuit breaker (1MS2) (Ref. ASM 25-11/01).
a If there is a short to ground:
b If there is no short to ground:
. replace the C/B-COCKPIT SEATS/SEAT CTL/F/O (1MS2).
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** On A/C ALL
Task 25-11-00-810-807-A
Manual Controls of the Captain Seat Inoperative
1. Possible Causes
A. Test
25-11-00-710-001).

4. Fault Isolation
A. If during the operational test:
(1) The vertical manual control of the Captain seat is inoperative:
25-11-51-400-001).
(2) The horizontal manual control of the Captain seat is inoperative:
25-11-51-400-001).
(3) The backrest adjustment of the Captain seat is inoperative:
25-11-51-400-001).
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** On A/C ALL
Task 25-11-00-810-808-A
Manual Controls of the First Officer Seat Inoperative
1. Possible Causes
. SEAT-F/O (4MS)
A. Test
25-11-00-710-001).
NOTE : Do the First Officer test only.

4. Fault Isolation
(1) The vertical manual control of the First Officer seat is inoperative:
(2) The horizontal manual control of the First Officer seat is inoperative:
(3) The backrest adjustment of the First Officer seat is inoperative:
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** On A/C ALL
Task 25-11-00-810-809-A
Lumbar Rest Adjustment of the Captain Seat Inoperative
1. Possible Causes
. LUMBAR-REST SEAT, CAPTAIN
AMM 25-11-67-000-001 Removal of the Captain (First Officer) Seat Lumbar-Rest
AMM 25-11-67-400-001 Installation of the Captain (First Officer) Seat Lumbar-Rest
A. Test
(1) Adjust the lumbar rest in the vertical and horizontal directions with the two knobs, located on the
pedestal side of the backrest.
NOTE : The round serrated knob ensures the vertical lumbar rest adjustment with a rack and pinion
system.
The triangular knob ensures the depth adjustment of the lumbar rest with a cam-mounted rack
and pinion assembly.
4. Fault Isolation
A. If the lumbar rest adjustment of the Captain seat is inoperative:
. replace the LUMBAR-REST SEAT, CAPTAIN (Ref. AMM 25-11-67-000-001) and (Ref. AMM
25-11-67-400-001).
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** On A/C ALL
Task 25-11-00-810-810-A
Lumbar-Rest Adjustment of the First Officer Seat Inoperative
1. Possible Causes
. LUMBAR-REST SEAT, F/O
AMM 25-11-67-000-001 Removal of the Captain (First Officer) Seat Lumbar-Rest
AMM 25-11-67-400-001 Installation of the Captain (First Officer) Seat Lumbar-Rest
A. Test
(1) Adjust the lumbar rest in the vertical and horizontal directions with the two knobs, located on the
pedestal side of the backrest.
NOTE : The round serrated knob ensures the lumbar-rest vertical adjustment with a rack and pinion
system.
The triangular knob ensures the depth adjustment of the lumbar rest with a cam-mounted rack
and pinion assembly.
4. Fault Isolation
A. If the lumbar rest adjustment of the First Officer seat is inoperative:
. replace the LUMBAR-REST SEAT, F/O (Ref. AMM 25-11-67-000-001) and (Ref. AMM
25-11-67-400-001).
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** On A/C ALL
Task 25-11-00-810-811-A
Adjustment of the Captain Seat Armrest Inoperative
1. Possible Causes
. ARMREST-ASSY SEAT, CAPTAIN
. ARMREST-ASSY ASSIST SEAT, CAPTAIN
AMM 25-11-65-000-001 Removal of the Captain (First Officer) Seat Armrest Assy
AMM 25-11-65-400-001 Installation of the Captain (First Officer) Seat Armrest Assy
AMM 25-11-66-000-001 Removal of the Captain (First Officer) Seat Assist Armrest-Assy
AMM 25-11-66-400-001 Installation of the Captain (First Officer) Seat Assist Armrest-Assy
A. Test
(1) Adjust the Captain seat armrest.
4. Fault Isolation
A. If the adjustment of the Captain seat armrest is inoperative:
. replace the ARMREST-ASSY SEAT, CAPTAIN (Ref. AMM 25-11-65-000-001) and (Ref. AMM
25-11-65-400-001) or the ARMREST-ASSY ASSIST SEAT, CAPTAIN (Ref. AMM 25-11-66-000-001) and
(Ref. AMM 25-11-66-400-001).
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** On A/C ALL
Task 25-11-00-810-812-A
Adjustment of the First-Officer Seat Armrest Inoperative
1. Possible Causes
. ARMREST-ASSY SEAT, F/O
. ARMREST-ASSY ASSIST SEAT, F/O
AMM 25-11-65-000-001 Removal of the Captain (First Officer) Seat Armrest Assy
AMM 25-11-65-400-001 Installation of the Captain (First Officer) Seat Armrest Assy
AMM 25-11-66-000-001 Removal of the Captain (First Officer) Seat Assist Armrest-Assy
AMM 25-11-66-400-001 Installation of the Captain (First Officer) Seat Assist Armrest-Assy
A. Test
(1) Adjust the First-Officer seat armrest.
4. Fault Isolation
A. If the adjustment of the First-Officer seat armrest is inoperative:
. replace the ARMREST-ASSY SEAT, F/O (Ref. AMM 25-11-65-000-001) and (Ref. AMM
25-11-65-400-001) or the ARMREST-ASSY ASSIST SEAT, F/O (Ref. AMM 25-11-66-000-001) and (Ref.
AMM 25-11-66-400-001).
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** On A/C ALL
Task 25-11-00-810-813-A
Third Occupant Seat Inoperative
1. Possible Causes
. SEAT-THIRD OCCUPANT (14MM)
AMM 25-11-41-000-001 Removal of the Third Occupant Seat
AMM 25-11-41-400-001 Installation of the Third Occupant Seat
A. Test
(1) Not applicable.
4. Fault Isolation
A. If the Third Occupant seat is inoperative:
. replace the SEAT-THIRD OCCUPANT (14MM) (Ref. AMM 25-11-41-000-001) and (Ref. AMM
25-11-41-400-001).
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** On A/C ALL
Task 25-11-00-810-814-A
Fourth Occupant Seat Inoperative
1. Possible Causes
. SEAT-FOURTH OCCUPANT (13MM)
AMM 25-11-42-000-001 Removal of the Fourth Occupant Seat
AMM 25-11-42-400-001 Installation of the Fourth Occupant Seat
A. Test
(1) Not applicable.
4. Fault Isolation
A. If the Fourth Occupant seat is inoperative:
. replace the SEAT-FOURTH OCCUPANT (13MM) (Ref. AMM 25-11-42-000-001) and (Ref. AMM
25-11-42-400-001).
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** On A/C ALL
Task 25-11-00-810-815-A
Safety Harness of the Cockpit Seats Inoperative
1. Possible Causes
. HARNESS-ASSY SEAT, CAPTAIN
. HARNESS-ASSY SEAT, F/O
. SEAT-THIRD OCCUPANT (14MM)
. SEAT-FOURTH OCCUPANT (13MM)
AMM 25-11-41-000-001 Removal of the Third Occupant Seat
AMM 25-11-41-400-001 Installation of the Third Occupant Seat
AMM 25-11-42-000-001 Removal of the Fourth Occupant Seat
AMM 25-11-42-400-001 Installation of the Fourth Occupant Seat
AMM 25-11-63-000-001 Removal of the Captain (First Officer) Seat Harness Assy
AMM 25-11-63-400-001 Installation of the Captain (First Officer) Seat Harness Assy
A. Test
(1) Not applicable.
4. Fault Isolation
A. If the safety harness of:
(1) The Captain seat is inoperative:
. replace the HARNESS-ASSY SEAT, CAPTAIN (Ref. AMM 25-11-63-000-001) and (Ref. AMM
25-11-63-400-001).
(2) The First Officer seat is inoperative:
. replace the HARNESS-ASSY SEAT, F/O (Ref. AMM 25-11-63-000-001) and (Ref. AMM
25-11-63-400-001).
(3) The Third Occupant seat is inoperative:
. replace the SEAT-THIRD OCCUPANT (14MM) (Ref. AMM 25-11-41-000-001) and (Ref. AMM
25-11-41-400-001).
(4) The Fourth Occupant seat is inoperative:
. replace the SEAT-FOURTH OCCUPANT (13MM) (Ref. AMM 25-11-42-000-001) and (Ref. AMM
25-11-42-400-001).
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** On A/C ALL
Task 25-11-00-810-816-A
Floor Lighting on the Cockpit Seats Inoperative
1. Possible Causes
. SW-CONSOLE/FLOOR (15LE)
. wiring from the Captain seat (3MS) to the switch (15LE)
. wiring from the Captain Seat (3MS) to the ground
. SEAT-F/O (4MS)
. SW-CONSOLE/FLOOR (16LE)
. wiring from the F/O seat (4MS) to the switch (16LE)
. wiring from the F/O seat (4MS) to the ground
ASM 25-11/01
AMM 33-12-00-710-001 Operational Test of the General Illumination
ASM 33-12/01
A. Test
(1) Do the operational test of the general illumination (Ref. AMM 33-12-00-710-001).
NOTE : Do the test of the console and the briefcase lights only.
4. Fault Isolation
(1) A bulb is inoperative:
. replace the bulb.
(2) The Captain floor lighting is inoperative:
. disconnect the plug 1197VC and make sure that there is 28VDC at pins F and G (Ref. ASM
25-11/01).
(a) If there is 28VDC at pins F and G:
25-11-51-400-001).
(b) If there is no 28VDC at pin F:
. replace the SW-CONSOLE/FLOOR (15LE).
. do a check and repair the wiring from the Captain seat (3MS) to the switch (15LE) pins
1B, 1C, 2C and 3B (Ref. ASM 33-12/01).
(c) If there is no ground at pin G:
. do a check and repair the wiring from the Captain Seat (3MS) to the ground (Ref. ASM
33-12/01).
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(3) The First Officer floor lighting is inoperative:
. disconnect the plug 1198VC and make sure that there is 28VDC at pins F and G.
(a) If there is 28VDC at pins F and G:
25-11-51-400-001).
(b) If there is no 28VDC at pin F:
. replace the SW-CONSOLE/FLOOR (16LE).
. do a check and repair the wiring from the F/O seat (4MS) to the switch (16LE) pins
1B, 1C, 2C and 3B (Ref. ASM 33-12/01).
(c) If there is no ground at pin G:
. do a check and repair the wiring from the F/O seat (4MS) to the ground (Ref. ASM
33-12/01).
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PASSENGER COMPARTMENT SEATS - FAULT ISOLATION

PROCEDURES
** On A/C 201-250
Task 25-21-00-810-801-A
The ON lamp of the PED switch in the cabin does not come on
1. Possible Causes
. MODULE-CABIN ASSIGNMENT (115RH)
AMM 23-73-00-861-001 Energize the Cabin Intercommunication Data System (CIDS)
AMM 23-73-19-400-002 Installation of the Cabin Assignment Module
ASM 25-21/00
A. Test
(1) Make sure that the Cabin Intercommunication Data-System (CIDS) is energized (Ref. AMM
23-73-00-861-001).
(2) Push the PED POWER switch on the FAP (120RH) to the ON position and make sure that the
indicator changes from amber to green.
4. Fault Isolation
A. If the indicator:
. Stays amber, do step (1)
. Is OFF, do step (2).
(1) Do a check and repair the wiring between the MCU and the CIDS-director (Ref. ASM 25-21/00).
(a) If the fault continues:
. Do the trouble shooting procedure related to the maintenance message.
(2) Do a check for the correct installation of the current MODULE-CABIN ASSIGNMENT (115RH) (Ref.
AMM 23-73-19-400-002).
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** On A/C 201-250
Task 25-21-00-810-821-A
The PED Power supply is available during the operational test of the passenger emergency oxygen system
1. Possible Causes
. aircraft wiring
. relay 19WR
. MASTER CONTROL UNIT- SEAT POWER SUPPLY (55HP)
A. Fixtures, Tools, Test and Support Equipment
REFERENCE QTY DESIGNATION

No specific 1 MULTIMETER - STANDARD
B. Referenced Information
35-23-00-810-806-A PAX Announcement Activation Fault
AMM 25-21-00-710-002 Operational Test of the In-Seat Power-Supply System (PED Power Supply)
AWM 25-21-11
AMM 25-21-34-000-001 Removal of the Master Control Unit (MCU)
AMM 25-21-34-400-001 Installation of the Master Control Unit (MCU)
AMM 35-23-00-710-001 Operational Check of Manual Mask Release
A. Operational Test
(1) Do the operational check of the manual mask release (Ref. AMM 35-23-00-710-001).
(2) Use a MULTIMETER - STANDARD to check if PED power at the outlet unit is available (Ref. AMM
25-21-00-710-002).
4. Fault Isolation
A. If the results of the operational test are unsatisfactory, do the procedure that follows:
(1) At the MCU 55HP:
(a) Disconnect the connector F from the MCU J6
(b) Use the MULTIMETER - STANDARD to do a check for continuity and for a short circuit in the
aircraft wiring between (Ref. AWM 25-21-11):
. The MCU connector F pin 18 and the diode module 1805VD pin 26. This is through:
- The connector 2793VC pin 4.
(c) If there is a fault in the aircraft wiring:
. Repair and replace as necessary
. Connect the connector F to the MCU connector J6
. Do the test given in Para. 3.
(2) If there is no fault in the aircraft wiring, do the procedure that follows:
(a) Do the troubleshooting of the relay 19WR (Ref. TASK 35-23-00-810-806-A).
(b) If the fault continues, replace the MASTER CONTROL UNIT- SEAT POWER SUPPLY (55HP) (
(Ref. AMM 25-21-34-000-001) and (Ref. AMM 25-21-34-400-001)).
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** On A/C 201-250
Task 25-21-00-810-865-A
No Electrical Power from FWD Master Control Unit (MCU)
1. Possible Causes
. MASTER CONTROL UNIT- SEAT POWER SUPPLY (55HP)
25-21-00-810-870-A Ground Fault Interupt detected
AMM 25-21-34-000-001 Removal of the Master Control Unit (MCU)
AMM 25-21-34-400-001 Installation of the Master Control Unit (MCU)
A. Do the operational test of the in-seat power-supply system (Ref. AMM 25-21-00-710-002).
4. Fault Isolation
A. If the test confirms the fault:
(1) Replace the MASTER CONTROL UNIT- SEAT POWER SUPPLY (55HP) ( (Ref. AMM
25-21-34-000-001) and (Ref. AMM 25-21-34-400-001)).
(2) If the fault continues:
(a) Do a check on the circuit breaker panel 2000VU, if the related CB(s) are open.
. If they are open, do the troubleshooting for GFI (Ref. TASK 25-21-00-810-870-A).
. If they are closed, make sure that the busbar 220XP is energized.
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** On A/C 201-250
Task 25-21-00-810-866-A
PED Supply is not available at one Seat Assembly
1. Possible Causes
. PED-power in-use indicator (PPUI)
. outlet unit (154HP*)
. in-seat power-supply unit (150HP*)
. in-seat cable
. Seat-to-seat cable

AMM 25-21-37-000-001 Removal of the Power Outlet Unit
AMM 25-21-37-400-001 Installation of the Power Outlet Unit
AMM 25-21-42-000-001 Removal of the In-Seat Power-Supply Unit
AMM 25-21-42-400-001 Installation of the In-Seat Power-Supply Unit
AMM 25-21-61-000-001 Removal of the Cable - Seat to Seat
AMM 25-21-61-400-001 Installation of the Cable - Seat to Seat
A. Use a MULTIMETER - STANDARD to check if PED power at the outlet unit is available (Ref. AMM
25-21-00-710-002).
4. Fault Isolation
A. If the PED power supply is not available:
(1) Do a check of the wiring and the condition of the PED-power in-use indicator (PPUI).
(a) Replace the defective wiring and/or PPUI.
(a) Replace the outlet unit (154HP*) ( (Ref. AMM 25-21-37-000-001) and (Ref. AMM
25-21-37-400-001)).
(a) Disconnect the connector P2 at the related in-seat power-supply unit.
(b) Use a MULTIMETER - STANDARD to make sure that 115VAC are available at the connector P2
pin 1.
(c) If there are 115VAC available at the connector P2:
. Replace the in-seat power-supply unit (150HP*) ( (Ref. AMM 25-21-42-000-001) and (Ref.
AMM 25-21-42-400-001)).
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(d) If there are no 115VAC available:
. Do a check and replace the defective in-seat cable and/or Seat-to-seat cable ( (Ref. AMM
25-21-61-000-001) and (Ref. AMM 25-21-61-400-001)).
B. Do the test as given in para.3.
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** On A/C 201-250
Task 25-21-00-810-867-A
PED Supply is not available at one Seat Group
1. Possible Causes
. wiring
. terminal blocks VT-type
. seat-to-seat cable
. in-seat power-supply unit (150HP*)

AMM 25-21-42-000-001 Removal of the In-Seat Power-Supply Unit
AMM 25-21-42-400-001 Installation of the In-Seat Power-Supply Unit
A. Use a MULTIMETER - STANDARD to check if PED power at the outlet unit is available (Ref. AMM
25-21-00-710-002).
4. Fault Isolation
A. If the test confirms the fault:
(1) Do a check and repair the wiring between the MCU and the related Power Wall Disconnect-Box
(PWDB).
(a) Do a careful check of the terminal blocks VT-type for correct condition and correct connection.
(b) Make sure that all terminal ends and the nuts are correctly installed and repair if necessary.
. Do a check and replace the defective seat-to-seat cable which is connected to the related PWDB (
(Ref. AMM 25-21-61-000-001) and (Ref. AMM 25-21-61-400-001)).
. Replace the defective in-seat power-supply unit (150HP*) of the first seat in the defective seat
column ( (Ref. AMM 25-21-42-000-001) and (Ref. AMM 25-21-42-400-001)).
. Do a check and replace the other defective seat-to-seat cable(s) ( (Ref. AMM 25-21-61-000-001)
and (Ref. AMM 25-21-61-400-001)).
. Do a check and replace the other defective in-seat power-supply units ( (Ref. AMM
25-21-42-000-001) and (Ref. AMM 25-21-42-400-001)).
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** On A/C 201-250
Task 25-21-00-810-870-A
Ground Fault Interupt detected
1. Possible Causes
. Seat-to-seat cable
. In-seat cable
. Wiring
. terminal blocks VT-type
24-00-00-810-803-A Circuit Breaker Tripped and/or C/B TRIPPED Warning
ASM 25-21/00
AWM 25-21-11
AWM 25-21-26
A. Do a check, if the CB 50HP is open.
4. Fault Isolation
A. If the CB(s) is/are open:
(1) Do a check (Ref. TASK 24-00-00-810-803-A) and repair or replace the defective (Ref. ASM 25-21/00)
(Ref. AWM 25-21-26):
. Seat-to-seat cable (Ref. AMM 25-21-61-000-001) and (Ref. AMM 25-21-61-400-001).
. In-seat cable.
. Wiring between the MCU and the power wall disconnect-box (PWDB)
(a) Do a careful check of the terminal blocks VT-type for correct condition and correct connection.
(b) Make sure that all terminal ends and the nuts are correctly installed and repair if necessary.
(4) Do a check and repair or replace the defective (Ref. ASM 25-21/00) (Ref. AWM 25-21-11):
. Wiring between the CB Panel 2000VU and the MCU.
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ANCILLARY EQUIPMENT - FAULT ISOLATION PROCEDURES

** On A/C 151-250
Task 25-27-00-810-807-A
EQUIP/FURNIS - DOOR AREA HEATING - One heated floor panel is INOP
1. Possible Causes
. control unit
. heated floor panel
A. Expendable Parts
FIG.ITEM DESIGNATION IPC-CSN

0 fuse 25-27-34-03-020
AMM 25-27-00-740-001 Bite Test of the Heated Floor Panel System.
ASM 25-27/01
ASM 25-27/02
AMM 25-27-34-000-001 Removal of the Control Unit 4DS, 14DS
AMM 25-27-34-400-001 Installation of the Control Unit 4DS, 14DS
AMM 25-27-51-000-002 Removal of the Heated Floor Panel 31DS , 33DS
AMM 25-27-51-400-002 Installation of the Heated Floor Panel 31DS , 33DS
A. Do the Bite Test of the Heated Floor Panel System (Ref. AMM 25-27-00-740-001).
4. Fault Isolation
A. If one test indicator on the related control unit does not come on:
. Interchange the connectors A and B and do the test given in Para 3.
. If the same indicator does not come on:
Do a check of the related fuse.
(1) If the fuse is not serviceable:
. Replace the (IPC-CSN 25-27-34-03) fuse (0) .
. Do a check of the aircraft wiring for a short circuit between the related control unit and the
inoperative heated floor panel, (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
1 If there is a short to ground:
. Repair the aircraft wiring, (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
2 If there is no short to ground:
. Replace the related control unit, (Ref. AMM 25-27-34-000-001) and (Ref. AMM
25-27-34-400-001).
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(b) If the fault continues:
. Replace the related heated floor panel, (Ref. AMM 25-27-51-000-002) and (Ref. AMM
25-27-51-400-002).
(2) If the fuse is serviceable:
. Do a check of the aircraft wiring between the related control unit and the inoperative heated floor
panel, (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
(a) If there is continuity:
. Replace the related control unit, (Ref. AMM 25-27-34-000-002) and (Ref. AMM
25-27-34-400-002).
. Replace the related heated floor panel, (Ref. AMM 25-27-51-000-002) and (Ref. AMM
25-27-51-400-002).
(b) If there is no continuity:
. Repair the aircraft wiring, (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
B. Do the test given in para. 3.A.
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** On A/C 151-250
Task 25-27-00-810-808-A
EQUIP/FURNIS - DOOR AREA HEATING - DOOR 1 LH - All heated floor panels are INOP
1. Possible Causes
. C/B-DR AREA HTG PNLS-DR1-FPH-LH (51DS)
. CTL UNIT-DOOR AREA HEATING (60DS)
ASM 25-27/01
ASM 25-27/02
4. Fault Isolation
A. If the test indicators on the control unit 60DS do not come on:
. Do a check for 115 VAC on the electrical connector 60DS-B, pin A1.
(1) If there is no 115 VAC:
. Do a check of the aircraft wiring between the related electrical connector 60DS-B, pin A1 and the
circuit breaker 51DS (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
. Replace the circuit breaker C/B-DR AREA HTG PNLS-DR1-FPH-LH (51DS).
. Repair the aircraft wiring (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
(2) If there is 115 VAC:
. Do a check for 28 VDC on the electrical connector 60DS-A, pin 16.
(a) If there is no 28 VDC:
. Repair the aircraft wiring between the electrical connector 60DS-A, pin 16 and the associated
terminal block (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
(3) If there is 28 VDC:
. Replace the CTL UNIT-DOOR AREA HEATING (60DS) (Ref. AMM 25-27-34-000-002) and (Ref.
AMM 25-27-34-400-002).
B. Do the test given in Para. 3.A.
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** On A/C 151-250
Task 25-27-00-810-809-A
EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are INOP
1. Possible Causes
. CONTACTOR, GALLEY PWR -A- (6MC)
. C/B-DOOR AREA HTG PANELS-CTL (54DS)
24-56-00-810-801-A Galley Supply Fault
AMM 24-56-00-710-001 Operational Test of the Galley Supply
AMM 24-56-55-000-002 Removal of the Contactor Located in the Panel 200VU
AMM 24-56-55-400-002 Installation of the Contactor Located in the Panel 200VU
ASM 25-27/01
ASM 25-27/02
A. Maintenance Action
(1) Do the operational test of the galley supply (Ref. AMM 24-56-00-710-001).
(a) If the test is not OK:
. Do the fault isolation procedure of the galley supply (Ref. TASK 24-56-00-810-801-A).
(b) If the test is OK:
. Do the Bite Test of the Heated Floor Panel System (Ref. AMM 25-27-00-740-001).
4. Fault Isolation
A. If the test indicators on all control units do not come on:
. Do a check of the aircraft wiring from the relay base 6MC-B, pin 21 to the associated terminal block (Ref.
ASM 25-27/01) and (Ref. ASM 25-27/02).
(1) If there is no continuity:
. Repair the aircraft wiring from the relay base 6MC-B, pin 21 to the associated terminal block (Ref.
ASM 25-27/01) and (Ref. ASM 25-27/02).
(2) If there is continuity:
. Replace the CONTACTOR, GALLEY PWR -A- (6MC) (Ref. AMM 24-56-55-000-002) and (Ref.
AMM 24-56-55-400-002).
. Do a check of the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker
54DS, pin 2 (Ref. ASM 25-27/01) and (Ref. ASM 25-27/02).
1 If there is continuity:
. Replace the circuit breaker C/B-DOOR AREA HTG PANELS-CTL (54DS).
2 If there is no continuity:
. Repair the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker
54DS, pin 2 (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
B. Do the test given in Para. 3.A.(1)(b)
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** On A/C 151-250
Task 25-27-00-810-810-A
EQUIP/FURNIS - DOOR AREA HEATING - DOOR 1 RH - All heated floor panels are INOP
1. Possible Causes
. C/B-DR AREA HTG PNLS-DR1-FPH-RH (52DS)
. CTL UNIT-DOOR AREA HEATING (66DS)
ASM 25-27/01
ASM 25-27/02
4. Fault Isolation
A. If the test indicators on the control unit 66DS do not come on:
. Do a check for 115 VAC on the electrical connector 66DS-B, pin A1.
(1) If there is no 115 VAC:
. Do a check of the aircraft wiring between the related electrical connector 66DS-B, pin A1 and the
circuit breaker 52DS (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
. Replace the circuit breaker C/B-DR AREA HTG PNLS-DR1-FPH-RH (52DS).
. Repair the aircraft wiring (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
(2) If there is 115 VAC:
. Do a check for 28 VDC on the electrical connector 66DS-A, pin 16.
(a) If there is no 28 VDC:
. Repair the aircraft wiring between the electrical connector 66DS-A, pin 16 and the associated
terminal block (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
(3) If there is 28 VDC:
. Replace the CTL UNIT-DOOR AREA HEATING (66DS) (Ref. AMM 25-27-34-000-002) and (Ref.
AMM 25-27-34-400-002).
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GALLEY COOLING - FAULT ISOLATION PROCEDURES

** On A/C 001-100 151-300
Task 25-34-00-810-801-A
System Fault Light of the Air Chiller is on
1. Possible Causes
. Circuit Breakers of the Air Chiller Unit
. Filter of the Air Chiller Unit
. Air Chiller Unit
AMM 25-34-00-710-001 Operational Test of the Air Chiller
AMM 25-34-00-960-001 Replacement of the Air Filter of the Air Chiller Unit
AMM 25-34-51-000-001 Removal of the Air Chiller Unit - Forward Galley
AMM 25-34-51-000-002 Removal of the Air Chiller Unit - Aft Galley
AMM 25-34-51-000-003 Removal of the Air Chiller Unit - Galley 2
AMM 25-34-51-400-001 Installation of the Air Chiller Unit - Forward Galley
AMM 25-34-51-400-002 Installation of the Air Chiller Unit - Aft Galley
AMM 25-34-51-400-003 Installation of the Air Chiller Unit - Galley 2
A. Do the operational test of the air chiller (Ref. AMM 25-34-00-710-001).
4. Fault Isolation
(1) If the test confirms the fault:
(a) On the galley control panel
1 Set the AIR CHILLER ON/OFF switch to the OFF position.
2 Open the Circuit Breakers of the Air Chiller Unit.
3 Wait for 30 seconds.
4 Close the Circuit Breakers of the Air Chiller Unit.
5 Set the AIR CHILLER ON/OFF switch to the ON position.
(a) Make sure that the Filter of the Air Chiller Unit is clean.
(b) If necessary, replace the filter (Ref. AMM 25-34-00-960-001).
(a) Replace the related Air Chiller Unit (Ref. AMM 25-34-51-000-001) and (Ref. AMM
25-34-51-400-001) , (Ref. AMM 25-34-51-000-003) and (Ref. AMM 25-34-51-400-003) or (Ref.
AMM 25-34-51-000-002) and (Ref. AMM 25-34-51-400-002)
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5. Close-up
A. Do the test given in Para. 3.
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** On A/C 001-100 151-300
Task 25-34-00-810-802-A
Trolley or Trolley Compartment is not cooled
1. Possible Causes
. Circuit Breakers of the air chiller unit
. Circuit Breakers of the Air Chiller Unit
. air chiller ducts
. electrical connectors on the air chiller unit
. filter of the air chiller unit condensor
. air ducts
. galley trolley seals
. ambient temperature above 85 deg.F (29.44 deg.C)
. air chiller unit
. wiring
ASM 25-31/01
ASM 25-33/01
AMM 25-34-00-100-002 Cleaning of the Condenser Air-Filter of the Air-Chiller Unit
AMM 25-34-00-710-001 Operational Test of the Air Chiller
AMM 25-34-51-000-001 Removal of the Air Chiller Unit - Forward Galley
AMM 25-34-51-000-002 Removal of the Air Chiller Unit - Aft Galley
AMM 25-34-51-000-003 Removal of the Air Chiller Unit - Galley 2
AMM 25-34-51-400-001 Installation of the Air Chiller Unit - Forward Galley
AMM 25-34-51-400-002 Installation of the Air Chiller Unit - Aft Galley
AMM 25-34-51-400-003 Installation of the Air Chiller Unit - Galley 2
A. Do the operational test of the air chiller (Ref. AMM 25-34-00-710-001).
4. Fault Isolation
(1) If the test confirms the fault:
(a) On the galley control panel
1 Set the AIR CHILLER ON/OFF switch to the OFF position.
2 Open the Circuit Breakers of the air chiller unit.
3 Wait for 30 seconds.
4 Close the Circuit Breakers of the Air Chiller Unit.
5 Set the AIR CHILLER ON/OFF switch to the ON position.
NOTE : Some chillers have an automatic lamp test feature. During the initial 30 seconds of
chiller operation the run and the fault lamps flashes both. That shall not be
considered as a fault code.
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(a) Remove all trolley carts from trolley compartment
1 If Air Over System
a Check for blockage of the inlet or outlet grills in the galley trolley compartment and
that the airflow is sufficient.
2 If Air Through System
a Check the trolley grills for blockage.
b Check for blockage of inlet or outlet air valves in the galley trolley compartment and
that the airflow is sufficient.
(b) Examine the air chiller ducts for signs of liquid.
1 If you find liquid, indicating spills or chronic duct leaks, repair the leaks at the areas where
the liquid comes from.
(c) Make sure that the electrical connectors on the air chiller unit are fully engaged.
(d) Make sure that the filter of the air chiller unit condensor is clean. (Ref. AMM 25-34-00-100-002)
(e) Remove the filter and make sure that the condensor fins are not damaged.
1 If they are damaged, make them straight with a Fin Comb.
NOTE : Refer to the air chiller CMM for this procedure.

(f) If necessary, clean the related filter. (Ref. AMM 25-34-00-100-002)
(g) Make sure that there are no unwanted objects in the air ducts.
(h) Make sure that there are no holes or leaks in the air ducts from the galley to the air chiller unit.
Examine carefully the air duct connections and seal them at the air chiller.
(i) Make sure that all the galley trolley seals are not damaged. Make sure that they are tight.
(j) Make sure that in the area of the air chiller unit there is no ambient temperature above 85 deg.F
(29.44 deg.C).
(a) Replace the related air chiller unit (Ref. AMM 25-34-51-000-001) and (Ref. AMM
25-34-51-400-001), (Ref. AMM 25-34-51-000-003) and (Ref. AMM 25-34-51-400-003) or (Ref.
AMM 25-34-51-000-002) and (Ref. AMM 25-34-51-400-002)
(a) Do a check of the wiring between the galley and the Air Chiller Unit (Ref. ASM 25-31/01) and
(Ref. ASM 25-33/01).
5. Close-up
A. Do the test given in Para. 3.
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GALLEY EQUIPMENT - FAULT ISOLATION PROCEDURES

** On A/C ALL
Task 25-35-00-810-802-A
Coffee-Maker does not operate
1. Possible Causes
. coffee maker
. wiring
. electrical connector of the coffee maker
. related CB
. related relays or switches
ASM 25-31/01
ASM 25-32/01
ASM 25-33/01
AMM 25-35-00-710-013 Operational Test of the Coffee-Maker
AMM 25-35-15-000-001 Removal of the Coffee Maker
AMM 25-35-15-400-001 Installation of the Coffee Maker
A. Do the operational test of the coffee maker (Ref. AMM 25-35-00-710-013).
4. Fault Isolation
A. If the coffee maker does not operate during the test:
. Replace the coffee maker (Ref. AMM 25-35-15-000-001) and (Ref. AMM 25-35-15-400-001).
. Do a check and if necessary repair the wiring between the related galley control panel and the
electrical connector of the coffee maker.
. Do a check and if necessary repair the related CB at the galley control panel and if installed the
related relays or switches (Ref. ASM 25-31/01) (Ref. ASM 25-32/01) (Ref. ASM 25-33/01).
. Do a check and if necessary repair the wiring of the galley (Ref. TASK 24-56-00-810-801-A).
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** On A/C ALL
Task 25-35-00-810-804-A
Oven does not operate
1. Possible Causes
. oven
. wiring
. electrical connector of the oven
. related CB
ASM 25-31/01
ASM 25-32/01
ASM 25-33/01
AMM 25-35-00-710-015 Operational Test of the Oven
AMM 25-35-19-000-001 Removal of the Oven
AMM 25-35-19-400-001 Installation of the Oven
A. Do the operational test of the oven (Ref. AMM 25-35-00-710-015).
4. Fault Isolation
A. If the oven does not operate during the test:
. Replace the oven (Ref. AMM 25-35-19-000-001) and (Ref. AMM 25-35-19-400-001).
electrical connector of the oven.
B. Do the test given in Para. 3.A
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** On A/C 151-250
Task 25-35-00-810-806-A
Steam-Oven does not operate
1. Possible Causes
. steam oven
. wiring
. electrical connector of the steam oven
. related CB
ASM 25-31/01
ASM 25-32/01
ASM 25-33/01
AMM 25-35-00-710-016 Operational Test of the Steam Oven
AMM 25-35-19-000-003 Removal of the Steam Oven
AMM 25-35-19-400-003 Installation of the Steam Oven
A. Do the operational test of the steam oven (Ref. AMM 25-35-00-710-016).
4. Fault Isolation
A. If the steam oven does not operate during the test:
. Replace the steam oven (Ref. AMM 25-35-19-000-003) and (Ref. AMM 25-35-19-400-003).
electrical connector of the steam oven.
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** On A/C 251-300
Task 25-35-00-810-807-A
Beverage-Maker does not operate
1. Possible Causes
. beverage maker
. wiring
. electrical connector of the beverage maker
. related CB
ASM 25-31/01
ASM 25-32/01
ASM 25-33/01
AMM 25-35-00-710-018 Operational Test of the Beverage-Maker
AMM 25-35-21-000-001 Removal of the Beverage Maker
AMM 25-35-21-400-001 Installation of the Beverage Maker
A. Do the operational test of the beverage maker (Ref. AMM 25-35-00-710-018).
4. Fault Isolation
A. If the beverage maker does not operate during the test:
. Replace the beverage maker (Ref. AMM 25-35-21-000-001) and (Ref. AMM 25-35-21-400-001).
electrical connector of the beverage maker.
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** On A/C 151-300
Task 25-35-00-810-812-A
Water-Heater/Boiler does not operate
1. Possible Causes
. water heater
. wiring
. electrical connector of the water heater
. related CB
ASM 25-31/01
ASM 25-32/01
ASM 25-33/01
AMM 25-35-00-710-023 Operational Test of the Water-Heater/Boiler
AMM 25-35-27-000-001 Removal of the Water Boiler/Heater
AMM 25-35-27-400-001 Installation of the Water Boiler/Heater
A. Do the Operational Test of the Water Heater (Ref. AMM 25-35-00-710-023).
4. Fault Isolation
A. If the water heater does not operate during the test:
. Replace the water heater (Ref. AMM 25-35-27-000-001) and (Ref. AMM 25-35-27-400-001).
electrical connector of the water heater.
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** On A/C ALL
Task 25-35-00-810-819-A
Unusual noise behind an oven or a steam oven
1. Possible Causes

AMM 25-30-00-960-002 Replacement of the Air Extraction Filter
AMM 25-35-00-710-015 Operational Test of the Oven
AMM 25-35-00-710-016 Operational Test of the Steam Oven
AMM 25-35-19-000-001 Removal of the Oven
AMM 25-35-19-000-003 Removal of the Steam Oven
AMM 25-35-19-400-001 Installation of the Oven
AMM 25-35-19-400-003 Installation of the Steam Oven
A. Do the operational test of the oven (Ref. AMM 25-35-00-710-015) and/or steam-oven (Ref. AMM
25-35-00-710-016) for each of the installed ovens.
4. Fault Isolation
A. If there is an unusual noise behind an oven/steam-oven during the test:
(1) Remove the applicable oven (Ref. AMM 25-35-19-000-001) or steam-oven (Ref. AMM
25-35-19-000-003).
(2) Do a visual inspection of the grill(s) and the housing(s) of the air extraction filter(s).
. If necessary clean the grill(s) and the housing(s) with a vacuum cleaner.
. If necessary replace the air extraction filter(s) (Ref. AMM 25-30-00-960-002).
(3) Hold a suitable sized piece of paper to the applicable air extraction inlet(s). The paper will stay in
position at the air extraction inlet(s) by the air suction.
(4) Install the removed oven (Ref. AMM 25-35-19-400-001) or steam-oven (Ref. AMM 25-35-19-400-003).
. Replace the applicable oven (Ref. AMM 25-35-19-000-001) and (Ref. AMM 25-35-19-400-001) or
the applicable steam-oven (Ref. AMM 25-35-19-000-003) and (Ref. AMM 25-35-19-400-003).
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ESCAPE FACILITIES - CABIN - FAULT ISOLATION PROCEDURES

** On A/C ALL
Task 25-62-00-810-801-A
Fault in the Slide Bottle Pressure for the LH FWD Pax Door
1. Possible Causes
. ESCAPE SLIDE FWD L (7500MM)
. DEU-B (300RH1)
. wiring
** On A/C 001-002
AMM 23-73-00-740-003 BITE-test of the Cabin Intercommunication Data System (CIDS) through the
PTP
CFDS
** On A/C 001-100
ASM 23-73/11
** On A/C 101-300
ASM 23-73/24
AMM 23-73-47-000-001 Removal of the Decoder/Encoder Unit B (300RH)
AMM 23-73-47-400-001 Installation of the Decoder/Encoder Unit B (300RH)
AMM 25-62-44-000-002 Removal of the Escape-Slide Pack-Assembly
AMM 25-62-44-000-012 Removal of the Escape-Slide Raft Pack-Assembly
AMM 25-62-44-400-006 Installation of the Escape-Slide Pack-Assembly
AMM 25-62-44-400-007 Installation of the Escape-Slide Raft Pack-Assembly
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
(1) Do the BITE test of the CIDS through the programming and test panel (PTP) (Ref. AMM
23-73-00-740-003), or through the centralized fault display system (CFDS) (Ref. AMM
23-73-00-740-005).
** On A/C 003-300
A. Do the Interface and Power-Up Test of the Cabin Intercommunication Data System (CIDS) via the CFDS
(Ref. AMM 23-73-00-740-005).
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4. Fault Isolation
** On A/C ALL
A. If the test gives a different maintenance message:
** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE FWD L or DEU-B 300RH1:
(1) Make sure that the gage needle of the inflation reservoir pressure-gage is:
. Above the green cursor
. To the right of the green cursor.
NOTE : The green cursor moves independently of the gage needle, when a temperature change occurs.
The green cursor adjusts to temperature changes automatically. During changes of the
temperature, the cursor is faster than the gas inside the reservoir. This makes the cursor not
accurate for a very short time.
(2) If the pressure indication is not correct:
. Replace the ESCAPE SLIDE FWD L (7500MM):
. For escape-slides (Ref. AMM 25-62-44-000-002) and (Ref. AMM 25-62-44-400-006).
. For escape-slide rafts (Ref. AMM 25-62-44-000-012) and (Ref. AMM 25-62-44-400-007).
(3) If the pressure indication is correct:
. Replace the DEU-B (300RH1) (Ref. AMM 23-73-47-000-001) and (Ref. AMM 23-73-47-400-001).
. Do a check and repair the wiring between the:
DEU-B (300RH1) connector C/36 and the SLIDE BOTTLE PRESS SENSOR connector A/C (Ref.
ASM 25-65/01) and (Ref. ASM 23-73/11).
** On A/C 101-300
B. If the test gives the maintenance message
SLIDE BTL 1L/DEU-B (300RH1) and/or
DEU-B 300RH1:
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(a) Do a check and repair the wiring between:
. The DEU-B (300RH1) connector C/27 and the SLIDE BOTTLE PRESS SENSOR connector
A/C
. The SLIDE BOTTLE PRESS SENSOR connector A/E and GND (Ref. ASM 23-73/24).
** On A/C ALL
C. Do the test as given in paragraph 3. A. to check the correct operation (no maintenance message is shown).
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** On A/C ALL
Task 25-62-00-810-802-A
Fault in the Slide Bottle Pressure for the RH FWD Pax Door
1. Possible Causes
. ESCAPE SLIDE FWD R (7501MM)
. DEU-B (300RH1)
. wiring
** On A/C 001-002
PTP
CFDS
** On A/C 001-100
ASM 23-73/11
** On A/C 101-300
ASM 23-73/24
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
23-73-00-740-005).
** On A/C 003-300
(Ref. AMM 23-73-00-740-005).
4. Fault Isolation
** On A/C ALL
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** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE FWD R or DEU-B 300RH1:
(1) Make sure the gage needle of the inflation reservoir pressure-gage is:
. Replace the ESCAPE SLIDE FWD R (7501MM):
. For escape-slides (Ref. AMM 25-62-44-000-002) and (Ref. AMM 25-62-44-400-006) .
ASM 25-65/01) and (Ref. ASM 23-73/11).
** On A/C 101-300
SLIDE BTL 1R/DEU B (300RH1) and/or
DEU-B 300RH1:
A/C
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. For Escape-slide rafts (Ref. AMM 25-62-44-000-012) and (Ref. AMM 25-62-44-400-007).
** On A/C ALL
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** On A/C ALL
Task 25-62-00-810-803-A
Fault in the Slide Bottle Pressure for the LH AFT Pax Door
1. Possible Causes
. ESCAPE SLIDE AFT L (7502MM)
. DEU-B (300RH6)
. wiring
. DEU-B (300RH8)
** On A/C 001-002
PTP
CFDS
** On A/C 001-100
ASM 23-73/26
** On A/C 101-300
ASM 23-73/27
AMM 25-62-00-780-001 Gage System Test
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
23-73-00-740-005).
** On A/C 003-300
(Ref. AMM 23-73-00-740-005).
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4. Fault Isolation
** On A/C ALL
** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE AFT L or DEU-B 300RH6:
(1) Make sure that the gage needle of the inflation reservoir pressure gage is:
. Replace the ESCAPE SLIDE AFT L (7502MM):
. Do the Gage System Test (Ref. AMM 25-62-00-780-001).
(4) If the test is not OK:
ASM 25-65/01) and (Ref. ASM 23-73/26).
** On A/C 101-300
SLIDE BTL 4L/DEU B (300RH8) and/or
DEU-B 300RH8:
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. Do the Gage System Test (Ref. AMM 25-62-00-780-001).
(4) If the test is not OK:
A/C
** On A/C ALL
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** On A/C ALL
Task 25-62-00-810-804-A
Fault in the Slide Bottle Pressure for the RH AFT Pax Door
1. Possible Causes
. ESCAPE SLIDE AFT R (7503MM)
. DEU-B (300RH6)
. wiring
. DEU-B (300RH8)
** On A/C 001-002
PTP
CFDS
** On A/C 001-100
ASM 23-73/26
** On A/C 101-300
ASM 23-73/27
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
23-73-00-740-005).
** On A/C 003-300
(Ref. AMM 23-73-00-740-005).
4. Fault Isolation
** On A/C ALL
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** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE AFT R or DEU-B 300RH6:
. Replace the ESCAPE SLIDE AFT R (7503MM):
ASM 25-65/01) and (Ref. ASM 23-73/26).
** On A/C 101-300
DEU-B 300RH8:
A/C
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** On A/C ALL
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** On A/C ALL
Task 25-62-00-810-805-A
Fault in the Slide Bottle Pressure for the LH Emergency Exit
1. Possible Causes
. RESERVOIR ASSY OWS L (7506MM)
. DEU-B (300RH4)
. wiring
. DEU-B (300RH6)

No specific 1 MIRROR - INSPECTION
** On A/C 001-002
PTP
CFDS
** On A/C 001-100
ASM 23-73/25
** On A/C 101-300
ASM 23-73/26
AMM 25-62-46-000-001 Inflation Reservoir, Offwing Escape-Slide - Removal
AMM 25-62-46-400-001 Inflation Reservoir, Offwing Escape-Slide - Installation
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
23-73-00-740-003), or through the centralized fault display system (DFDS) (Ref. AMM
23-73-00-740-005).
** On A/C 003-300
(Ref. AMM 23-73-00-740-005).
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4. Fault Isolation
** On A/C ALL
** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE EMER L or DEU-B 300RH4:
(1) Get access to the inflation reservoir assembly (Ref. AMM 25-62-46-000-001).
Only use the access procedure.
To see the pressure-gage, use a MIRROR - INSPECTION.
NOTE : The green cursor of the pressure-gage moves independently of the gage needle when a
temperature change occurs. The green cursor adjusts to temperature changes automatically.
During changes of the temperature, the cursor is faster than the gas inside the reservoir. This
makes the cursor not accurate for a very short time.
. Replace the RESERVOIR ASSY OWS L (7506MM) (Ref. AMM 25-62-46-000-001) and (Ref. AMM
25-62-46-400-001).
. Do a check and repair the wiring between:
DEU-B (300RH4) connector C/36 and the SLIDE BOTTLE PRESS SENSOR connector A/A (Ref.
ASM 25-65/01) and (Ref. ASM 23-73/25).
25-62-46-400-001).
(7) Close the access to the inflation reservoir (Ref. AMM 25-62-46-400-001).
Only use the close-up procedure.
** On A/C 101-300
SLIDE BTL 3L/DEU B (300RH6) and/or
DEU-B 300RH6:
(1) Get access to the inflation reservoir assembly. Use the access procedure of (Ref. AMM
25-62-46-000-001).
. Right of the green cursor.
To see the pressure-gage, use a MIRROR - INSPECTION.
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25-62-46-400-001).
A/A
. The SLIDE BOTTLE PRESS SENSOR connector A/C and GND (Ref. ASM 23-73/26).
25-62-46-400-001).
Use only the close-up procedure.
** On A/C ALL
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** On A/C ALL
Task 25-62-00-810-806-A
Fault in the Slide Bottle Pressure for the RH Emergency Exit
1. Possible Causes
. RESERVOIR ASSY OWS R (7507MM)
. DEU-B (300RH4)
. wiring
. DEU-B (300RH6)
** On A/C 001-002
PTP
CFDS
** On A/C 001-100
ASM 23-73/25
** On A/C 101-300
ASM 23-73/26
AMM 25-62-46-000-001 Inflation Reservoir, Offwing Escape-Slide - Removal
AMM 25-62-46-400-001 Inflation Reservoir, Offwing Escape-Slide - Installation
** On A/C 001-100
ASM 25-65/01
** On A/C 001-002
A. Test
23-73-00-740-005).
** On A/C 003-300
(Ref. AMM 23-73-00-740-005).
4. Fault Isolation
** On A/C ALL
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** On A/C 001-100
B. If the test gives the maintenance message SLIDE BOTTLE EMER R orDEU-B 300RH4:
(1) Get access to the inflation reservoir assembly (Ref. AMM 25-62-46-000-001).
Only use the access procedure.
(2) Make sure the gage neeedle of the inflation reservoir pressure-gage is:
NOTE : The green cursor moves independently of the gage needle when a temperature change occurs.
. Replace the RESERVOIR ASSY OWS R (7507MM) (Ref. AMM 25-62-46-000-001) and (Ref. AMM
25-62-46-400-001).
DEU-B (300RH4) connector C/37 and the SLIDE BOTTLE PRESS SENSOR connector A/A (Ref.
ASM 25-65/01) and (Ref. ASM 23-73/25).
25-62-46-400-001).
** On A/C 101-300
DEU-B 300RH6:
(1) Get access to the inflation reservoir assembly. Use the access procedure of (Ref. AMM
25-62-46-000-001).
25-62-46-400-001).
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A/C
25-62-46-400-001).
** On A/C ALL
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** On A/C ALL
Task 25-62-00-810-811-A
Escape Slide/Escape Slide (Raft) Light for the LH FWD Passenger/Crew Door Inoperative
1. Possible Causes
. ESCAPE SLIDE FWD L (7500MM)
. POWER-EMERGENCY SUPPLY (10WL)
. aircraft wiring
AMM 33-51-00-710-001 Operational Test of the Emergency Lights
ASM 33-51/01
AMM 33-51-38-000-001 Removal of the Emergency Power-Supply Unit (EPSU)
AMM 33-51-38-400-001 Installation of the Emergency Power-Supply Unit (EPSU)
A. Do the operational test of the emergency lighting system (Ref. AMM 33-51-00-710-001).
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD FWD L (10WL) :
(1) Replace the SLIDE/RAFT, DOOR 1, LH ESCAPE SLIDE FWD L (7500MM):
(a) For escape-slides (Ref. AMM 25-62-44-000-002) and (Ref. AMM 25-62-44-400-006).
(b) For escape-slide rafts (Ref. AMM 25-62-44-000-012) and (Ref. AMM 25-62-44-400-007).
(2) Do the test given in Para. 3.
- Replace the POWER-EMERGENCY SUPPLY (10WL) (Ref. AMM 33-51-38-000-001) and (Ref. AMM
33-51-38-400-001).
- Do a check and repair the aircraft wiring from the POWER-EMERGENCY SUPPLY (10WL) to the
escape slide/escape slide (raft) connector 2871VC (Ref. ASM 33-51/01).
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (10WL) DOOR FWD L:
(1) Replace the SLIDE/RAFT, DOOR 1, LH ESCAPE SLIDE FWD L (7500MM):
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33-51-38-400-001).
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** On A/C ALL
Task 25-62-00-810-812-A
Escape Slide/Escape Slide (Raft) Light for the RH FWD Passenger/Crew Door Inoperative
1. Possible Causes
. ESCAPE SLIDE FWD R (7501MM)
. POWER-EMERGENCY SUPPLY (10WL)
. aircraft wiring
ASM 33-51/01
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD FWD R (10WL) :
(1) Replace the SLIDE/RAFT, DOOR 1, RH ESCAPE SLIDE FWD R (7501MM):
33-51-38-400-001).
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (10WL) DOOR FWD R:
(1) Replace the SLIDE/RAFT, DOOR 1, RH ESCAPE SLIDE FWD R (7501MM):
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33-51-38-400-001).
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** On A/C ALL
Task 25-62-00-810-813-A
Escape Slide Light for the LH Emergency Exits Inoperative
1. Possible Causes
. ESCAPE SLIDE OFFWING L (7504MM)
. EPSU (11WL)
. aircraft wiring
AMM 25-62-42-000-001 Offwing Escape-Slide - Removal
AMM 25-62-42-400-001 Offwing Escape-Slide - Installation
ASM 33-51/01
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD EMER L (11WL) :
- replace the LH OFFWING ESCAPE SLIDE ESCAPE SLIDE OFFWING L (7504MM) (Ref. AMM
25-62-42-000-001) and (Ref. AMM 25-62-42-400-001).
- replace the EPSU (11WL) (Ref. AMM 33-51-38-000-001) and (Ref. AMM 33-51-38-400-001).
- do a check and repair the aircraft wiring from the EPSU (11WL) to the escape slide connector
7531VC (Ref. ASM 33-51/01).
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (11WL) DOOR EMER L:
- replace the LH OFFWING ESCAPE SLIDE ESCAPE SLIDE OFFWING L (7504MM) (Ref. AMM
25-62-42-000-001) and (Ref. AMM 25-62-42-400-001).
7531VC (Ref. ASM 33-51/01).
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** On A/C ALL
Task 25-62-00-810-814-A
Escape Slide Light for the RH Emergency Exits Inoperative
1. Possible Causes
. ESCAPE SLIDE OFFWING R (7505MM)
. EPSU (12WL)
. aircraft wiring
AMM 25-62-42-000-001 Offwing Escape-Slide - Removal
AMM 25-62-42-400-001 Offwing Escape-Slide - Installation
ASM 33-51/01
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD EMER R (12WL) :
- replace the RH OFFWING ESCAPE SLIDE ESCAPE SLIDE OFFWING R (7505MM) (Ref. AMM
25-62-42-000-001) and (Ref. AMM 25-62-42-400-001).
7532VC (Ref. ASM 33-51/01).
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (12WL) DOOR EMER R:
- replace the RH OFFWING ESCAPE SLIDE ESCAPE SLIDE OFFWING R (7505MM) (Ref. AMM
25-62-42-000-001) and (Ref. AMM 25-62-42-400-001).
7532VC (Ref. ASM 33-51/01).
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** On A/C ALL
Task 25-62-00-810-819-A
Escape Slide/Escape Slide (Raft) Light for the LH AFT Passenger/Crew Door Inoperative
1. Possible Causes
. ESCAPE SLIDE AFT L (7502MM)
. EPSU (13WL)
. aircraft wiring
ASM 33-51/02
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD AFT L (13WL) :
(1) Replace the SLIDE/RAFT, DOOR 4, LH ESCAPE SLIDE AFT L (7502MM):
(a) For escape-slides (Ref. AMM 25-62-44-000-002) and (Ref. AMM 25-62-44-400-006) .
- Replace the EPSU (13WL) (Ref. AMM 33-51-38-000-001) and (Ref. AMM 33-51-38-400-001).
- Do a check and repair the aircraft wiring from the EPSU (13WL) to the escape slide/escape slide
(raft) connector 2873VC (Ref. ASM 33-51/02).
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (13WL) DOOR AFT L:
(1) Replace the SLIDE/RAFT, DOOR 4, LH ESCAPE SLIDE AFT L (7502MM):
(a) For escape-slides (Ref. AMM 25-62-44-000-002) and (Ref. AMM 25-62-44-400-006) .
BKP Page 1
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** On A/C ALL
Task 25-62-00-810-820-A
Escape Slide/Escape Slide (Raft) Light for the RH AFT Passenger/Crew Door Inoperative
1. Possible Causes
. ESCAPE SLIDE AFT R (7503MM)
. EPSU (13WL)
. aircraft wiring
ASM 33-51/02
4. Fault Isolation
** On A/C 001-002
A. If the test gives the maintenance message EPSU EXT LOAD AFT R (13WL) :
(1) Replace the SLIDE/RAFT, DOOR 4, RH ESCAPE SLIDE AFT R (7503MM):
** On A/C 003-300
A. If the test gives the maintenance message ESCAPE SLIDE LT/EPSU (13WL) DOOR AFT R:
(1) Replace the SLIDE/RAFT, DOOR 4, RH ESCAPE SLIDE AFT R (7503MM):
BKP Page 1
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@A318/A319/A320/A321
** On A/C ALL
Task 25-62-00-810-821-A
Fault of the Operational Test of the Offwing Escape-Slides
1. Possible Causes

AMM 25-62-00-710-001 Operational Test of the Escape-Slide Deployment, FWD/AFT Passenger/Crew
Door
AMM 52-21-00-720-001 Functional Test of the Automatic and the Manual Slide Release Signal
A. Test
(1) Do the operational test of the offwing escape-slide deployment (Ref. AMM 25-62-00-710-001).
4. Fault Isolation
A. If the operational test is not satisfactory:
(1) Do the functional test of the automatic and the manual slide release signal (Ref. AMM
52-21-00-720-001).
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ESCAPE FACILITIES - CABIN - TASK SUPPORTING DATA

** On A/C ALL
1. Illustration
(Ref. Fig. 25-62-00-11300-A - Cabin Escape Facilities - Escape Slide and Slide/Raft Location)
(Ref. Fig. 25-62-00-11400-A - Inflation Reservoir Pressure-Gage - Location)
The illustrations that follow help you do the related trouble shooting procedures.
(Ref. Fig. 25-62-00-11300-A - Cabin Escape Facilities - Escape Slide and Slide/Raft Location)
(Ref. Fig. 25-62-00-11400-A - Inflation Reservoir Pressure-Gage - Location)
BKP Page 1
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** On A/C ALL
DUAL LANE ESCAPE

SLIDES OR 44−
PERSON RAFTS
7500MM/7501MM
EMERGENCY EXITS
DUAL LANE OFFWING

ESCAPE SLIDES
7504MM/7505MM
DUAL LANE ESCAPE

SLIDES OR 44−
PERSON RAFTS
7502MM/7503MM
N_TS_256200_3_AAM0_01_00
BKP FIGURE 25-62-00-11300-A SHEET 1 Page 2

Cabin Escape Facilities - Escape Slide and Slide/Raft 25-62-00 PB301 Feb 01/12
Location Revision n˚: 31
@A318/A319/A320/A321
** On A/C ALL
A
7503MM
Z842
A
Z151
Z152
Z832
7501MM
7502MM
Z841
D A
A
Z831
7500MM
A
B
FR50 PRESSURE
GAGE
FR48 VIEWING
WINDOW
AFT CARGO B
COMPARTMENT ESCAPE SLIDE/
ESCAPE SLIDE (RAFT)
C 7500MM
(7501MM)
7502MM
C (7503MM)
SIDEWALL
PANEL
ACCESS COVERS
151 KW (152 KW)
GREEN ’GO’ BAND
FR47 FR47
RED ’NO GO’ BAND POINTER

(PRESSURE
C INDICATING)
FR48
PRESSURE CURSOR
GAGE (TEMPERATURE
COMPENSATED)
B OFFWING ESCAPE
SLIDE
INFLATION
RESERVOIR
7506MM (7507MM)
N_TS_256200_3_ACM0_01_00
BKP FIGURE 25-62-00-11400-A SHEET 1 Page 3

Inflation Reservoir Pressure-Gage - Location 25-62-00 PB301 Feb 01/12
Revision n˚: 31

@A318/A319/A320/A321: Chapter 25 - Equipment/Furnishings

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TROUBLE SHOOTING MANUAL

25-21-00 PASSENGER COMPARTMENT SEATS

25-27-00 ANCILLARY EQUIPMENT

BKP T.O.C. Page 1

25-34-00 GALLEY COOLING

25-35-00 GALLEY EQUIPMENT

25-62-00 ESCAPE FACILITIES - CABIN

BKP T.O.C. Page 2

COCKPIT SEATS - FAULT ISOLATION PROCEDURES

NOTE : Do the test for the Captain seat only.

NOTE : Do the test for the First Officer seat only.

NOTE : Do the test for the Captain seat only.

NOTE : Do the test for the First Officer seat only.

NOTE : Do the test of the Captain seat only.

NOTE : Do the test of the First Officer seat only.

NOTE : Do the test for the Captain seat only.

NOTE : Do the First Officer test only.

PASSENGER COMPARTMENT SEATS - FAULT ISOLATION

REFERENCE QTY DESIGNATION

REFERENCE QTY DESIGNATION

REFERENCE QTY DESIGNATION

ANCILLARY EQUIPMENT - FAULT ISOLATION PROCEDURES

FIG.ITEM DESIGNATION IPC-CSN

GALLEY COOLING - FAULT ISOLATION PROCEDURES

NOTE : Refer to the air chiller CMM for this procedure.

GALLEY EQUIPMENT - FAULT ISOLATION PROCEDURES

2. Job Set-up Information

ESCAPE FACILITIES - CABIN - FAULT ISOLATION PROCEDURES

REFERENCE QTY DESIGNATION

2. Job Set-up Information

ESCAPE FACILITIES - CABIN - TASK SUPPORTING DATA

DUAL LANE ESCAPE

DUAL LANE OFFWING

DUAL LANE ESCAPE

BKP FIGURE 25-62-00-11300-A SHEET 1 Page 2

RED ’NO GO’ BAND POINTER

BKP FIGURE 25-62-00-11400-A SHEET 1 Page 3

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