Editing Air Algérie Flight 5017
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The Malian authorities opened an investigation, with the President of the Mali Commission of Inquiry ({{langx|fr|link=no|Président de la Commission d'enquête du Mali}}) as the director, and the French ''[[Bureau of Enquiry and Analysis for Civil Aviation Safety]]'' (BEA) provided technical assistance.<ref>"[http://www.bea.aero/en/enquetes/flight.ah.5017/presentation.commission.mali.070814.en.pdf Presentation of Information on the accident to the McDonnell Douglas MD-83, registered EC-LTV, on 24 July 2014 in theregion of Gao (Mali)]" ([https://web.archive.org/web/20150620181819/http://www.bea.aero/en/enquetes/flight.ah.5017/presentation.commission.mali.070814.en.pdf Archive]). ''[[Bureau of Enquiry and Analysis for Civil Aviation Safety]]''. Retrieved 23 August 2014. [http://www.bea.aero/fr/enquetes/vol.ah.5017/presentation.commission.mali.070814.fr.pdf French version] ([https://web.archive.org/web/20140826161010/http://www.bea.aero/fr/enquetes/vol.ah.5017/presentation.commission.mali.070814.fr.pdf Archive]).</ref> |
The Malian authorities opened an investigation, with the President of the Mali Commission of Inquiry ({{langx|fr|link=no|Président de la Commission d'enquête du Mali}}) as the director, and the French ''[[Bureau of Enquiry and Analysis for Civil Aviation Safety]]'' (BEA) provided technical assistance.<ref>"[http://www.bea.aero/en/enquetes/flight.ah.5017/presentation.commission.mali.070814.en.pdf Presentation of Information on the accident to the McDonnell Douglas MD-83, registered EC-LTV, on 24 July 2014 in theregion of Gao (Mali)]" ([https://web.archive.org/web/20150620181819/http://www.bea.aero/en/enquetes/flight.ah.5017/presentation.commission.mali.070814.en.pdf Archive]). ''[[Bureau of Enquiry and Analysis for Civil Aviation Safety]]''. Retrieved 23 August 2014. [http://www.bea.aero/fr/enquetes/vol.ah.5017/presentation.commission.mali.070814.fr.pdf French version] ([https://web.archive.org/web/20140826161010/http://www.bea.aero/fr/enquetes/vol.ah.5017/presentation.commission.mali.070814.fr.pdf Archive]).</ref> |
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On 27 July, BEA investigators arrived at the crash site to collect evidence.<ref name="avherald"/> Both [[flight recorder|black boxes]] were recovered,<ref>{{cite news|title=Second Black Box Found at Mali Crash Site|url=http://www.voanews.com/content/second-black-box-recoverd-at-mali-crash-site/1965812.html|access-date=27 July 2014|publisher=Voice of America|date=27 July 2014|archive-url=https://web.archive.org/web/20140729011025/http://www.voanews.com/content/second-black-box-recoverd-at-mali-crash-site/1965812.html|archive-date=29 July 2014|url-status=dead}}</ref> and data from the [[flight data recorder]] (FDR) was read out. The [[cockpit voice recorder]] (CVR) had been damaged in the impact and repaired, but "the recordings that [the magnetic tape] contains are unusable, due apparently to a recorder malfunction, with no link to the damage that resulted from the accident".<ref name="bea">{{cite web|date=7 August 2014|title=Accident to the McDonnell Douglas MD-83, registered EC-LTV, on 24 July 2014 in the region of Gao (Mali)|url=https://www.bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-mcdonnell-douglas-dc-9-83-registered-ec-ltv-on-07-21-2014-near-gossi-mali/|url-status=live|access-date=7 August 2014|website=bea.aero|publisher=Bureau of Enquiry and Analysis for Civil Aviation Safety|archive-url= |
On 27 July, BEA investigators arrived at the crash site to collect evidence.<ref name="avherald"/> Both [[flight recorder|black boxes]] were recovered,<ref>{{cite news|title=Second Black Box Found at Mali Crash Site|url=http://www.voanews.com/content/second-black-box-recoverd-at-mali-crash-site/1965812.html|access-date=27 July 2014|publisher=Voice of America|date=27 July 2014|archive-url=https://web.archive.org/web/20140729011025/http://www.voanews.com/content/second-black-box-recoverd-at-mali-crash-site/1965812.html|archive-date=29 July 2014|url-status=dead}}</ref> and data from the [[flight data recorder]] (FDR) was read out. The [[cockpit voice recorder]] (CVR) had been damaged in the impact and repaired, but "the recordings that [the magnetic tape] contains are unusable, due apparently to a recorder malfunction, with no link to the damage that resulted from the accident".<ref name="bea">{{cite web|date=7 August 2014|title=Accident to the McDonnell Douglas MD-83, registered EC-LTV, on 24 July 2014 in the region of Gao (Mali)|url=https://www.bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-mcdonnell-douglas-dc-9-83-registered-ec-ltv-on-07-21-2014-near-gossi-mali/|url-status=live|access-date=7 August 2014|website=bea.aero|publisher=Bureau of Enquiry and Analysis for Civil Aviation Safety|archive-url=http://web.archive.org/web/20211201042134/https://www.bea.aero/en/investigation-reports/notified-events/detail/accident-to-the-mcdonnell-douglas-dc-9-83-registered-ec-ltv-on-07-21-2014-near-gossi-mali/ |archive-date=1 December 2021 }}</ref> As a result, the investigation prioritized alternative sources, like records of air-traffic transmissions.<ref name="fg"/> |
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On 7 August, the investigation team held a press conference at BEA's headquarters in Paris. They outlined the team structure (three international working groups assigned to the "aircraft", "systems" and "operations" each) and presented an abridged timeline and a reconstruction of the aircraft's flight path. An interim report was scheduled to be published mid-September.<ref name="bea"/> Following the conference, Gérard Feldzer, an aviation expert, told [[Telecommunications in Burkina Faso|BFMTV]] that the aircraft trajectory recorded by the FDR strongly suggested the plane had [[Stall (fluid dynamics)|stalled]] in bad weather.<ref>{{cite news|last1=Samuel|first1=Henry|title=Air Algerie crash victims had no time to suffer, experts insist|url=https://www.telegraph.co.uk/news/worldnews/europe/france/11019561/Air-Algerie-crash-victims-had-no-time-to-suffer-experts-insist.html|access-date=7 August 2014|work=The Telegraph|date=7 August 2014}}</ref> |
On 7 August, the investigation team held a press conference at BEA's headquarters in Paris. They outlined the team structure (three international working groups assigned to the "aircraft", "systems" and "operations" each) and presented an abridged timeline and a reconstruction of the aircraft's flight path. An interim report was scheduled to be published mid-September.<ref name="bea"/> Following the conference, Gérard Feldzer, an aviation expert, told [[Telecommunications in Burkina Faso|BFMTV]] that the aircraft trajectory recorded by the FDR strongly suggested the plane had [[Stall (fluid dynamics)|stalled]] in bad weather.<ref>{{cite news|last1=Samuel|first1=Henry|title=Air Algerie crash victims had no time to suffer, experts insist|url=https://www.telegraph.co.uk/news/worldnews/europe/france/11019561/Air-Algerie-crash-victims-had-no-time-to-suffer-experts-insist.html|access-date=7 August 2014|work=The Telegraph|date=7 August 2014}}</ref> |
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* the autopilot logic that enables it to continue to give pitch-up commands beyond the stall angle, thereby aggravating the stall situation and increasing the crew's difficulties in recovery.<ref name="bea.aero"/>{{rp|pages=125–126}} |
* the autopilot logic that enables it to continue to give pitch-up commands beyond the stall angle, thereby aggravating the stall situation and increasing the crew's difficulties in recovery.<ref name="bea.aero"/>{{rp|pages=125–126}} |
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The BEA issued more than 20 recommendations in response to the crash, several of them noted on past aviation accidents, including [[West Caribbean Airways Flight 708]], [[Air France Flight 447]], and a serious incident onboard [[Spirit Airlines]] Flight 970.<ref>{{Cite web|last=Ranter|first=Harro|title=ASN Aircraft accident McDonnell Douglas DC-9-82 (MD-82) N823NK Wichita, KS|url=https://aviation-safety.net/database/record.php?id=20020604-0|url-status=live|access-date=25 June 2017|website=aviation-safety.net|publisher=Aviation Safety Network|archive-url= |
The BEA issued more than 20 recommendations in response to the crash, several of them noted on past aviation accidents, including [[West Caribbean Airways Flight 708]], [[Air France Flight 447]], and a serious incident onboard [[Spirit Airlines]] Flight 970.<ref>{{Cite web|last=Ranter|first=Harro|title=ASN Aircraft accident McDonnell Douglas DC-9-82 (MD-82) N823NK Wichita, KS|url=https://aviation-safety.net/database/record.php?id=20020604-0|url-status=live|access-date=25 June 2017|website=aviation-safety.net|publisher=Aviation Safety Network|archive-url=http://web.archive.org/web/20060207044322/http://aviation-safety.net:80/database/record.php?id=20020604-0 |archive-date=7 February 2006 }}</ref> Some of the recommendations were based on Search and Rescue operations, CVR malfunctions, and an "urgent" recommendation to the FAA about icing on aircraft.<ref name="bea.aero"/>{{rp|pages=127–131}} |
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