| Statuts: | Enquête Officielle |
| Date: | 02 MAI 1980 |
| Heure: | 06:34 PDT |
| Type/Sous-type: | McDonnell Douglas DC-9-81 |
| 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) |
| Nature: | Test |
| Aéroport de départ: | Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique |
| Aéroport de destination: | Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique |
Détails: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 subtantially.
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."
Sources:
Opérations de secours
NTSB issued 2 Safety Recommendations
| Issued: 05-MAR-1982 | To: FAA | A-82-024 |
| REVISE THE PROCEDURES WHICH ARE CURRENTLY BEING USED TO DEMONSTRATE MINIMUM LANDING DISTANCES FOR COMPLIANCE WITH 14 CFR 25.125 FOR CERTIFICATION OF TRANSPORT CATEGORY AIRPLANES TO (Closed - Unacceptable Action) |
| Issued: 05-MAR-1982 | To: FAA | A-82-025 |
| UPON ADOPTION OF REVISED PROCEDURES FOR DEMONSTRATING OPERATIONAL LANDING DISTANCES FOR COMPLIANCE WITH 14 CFR 25.125, REVIEW THE OPERATIONAL RUNWAY LENGTH LIMITATIONS IN 14 CFR 121.195 WHICH ARE APPLIED TO CERTIFICATION LANDING DISTANCES SO THAT THEY DO NOT UNJUSTIFIABLY PENALIZE THE OPERATIONAL SPECIFICATIONS OF AIRPLANES. (Closed - Unacceptable Action) |
Show all AD's and Safety Recommendations
Photos
Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Edwards AFB, CA et Edwards AFB, CA est de 0 km (0 miles).
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 tels qui sont connus à ce jour.