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Last updated: 24 October 2017
Statuts:Enquête Officielle
Date:vendredi 2 mai 1980
Type/Sous-type:Silhouette image of generic MD81 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-81 (MD-81)
Compagnie:McDonnell Douglas
Immatriculation: N980DC
Numéro de série: 48000/909
Année de Fabrication: 1979
Heures de vol:364
Moteurs: 2 Pratt & Whitney JT8D-209
Equipage:victimes: 0 / à bord: 7
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 7
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Edwards AFB, CA (EDW) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Aéroport de départ:Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique
Aéroport de destination:Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique
The aircraft was on a certification test flight to determine the horizontal distance required to land and bring the aircraft to a full stop as required by 14 CFR 25.125 when the accident occurred. The DC-9-80 touched down about 2,298 feet beyond the runway threshold. The descent rate at touchdown exceeded the aircraft's structural limitations; the empennage separated from the aircraft and fell to the runway. The aircraft came to rest about 5,634 feet beyond the landing threshold of runway 22 and was damaged substantially.

Probable Cause:

PROBABLE CAUSE: "The National Transportation Safety Board determines that the probable cause of this accident was the pilot's failure to stabilize the approach as prescribed by the manufacturer's flight test procedures. Contributing to the cause of the accident was the lack of a requirement in the flight test procedures for other flight crewmembers to monitor and call out the critical flight parameters. Also contributing to this accident were the flight test procedures prescribed by the manufacturer for demonstrating the aircraft's landing performance which involved vertical descent rates approaching the
design load limits of the aircraft."

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Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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