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Last updated: 17 September 2021
Statuts:Enquête Officielle
Date:mardi 7 juin 2005
Heure:01:25
Type/Sous-type:Silhouette image of generic MD11 model; specific model in this crash may look slightly different
McDonnell Douglas MD-11F
Compagnie:United Parcel Service - UPS
Immatriculation: N250UP
Numéro de série: 48745/596
Année de Fabrication: 1995
Heures de vol:28231
Moteurs: 3 General Electric CF6-80C2D1F
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 2
Total:victimes: 0 / à bord: 4
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Louisville-Standiford Field, KY (SDF) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Cargo
Aéroport de départ:Anchorage-Ted Stevens International Airport, AK (ANC/PANC), Etats-Unis d'Amérique
Aéroport de destination:Louisville-Standiford Field, KY (SDF/KSDF), Etats-Unis d'Amérique
Numéro de vol:6971
Détails:
The McDonnell Douglas MD-11F was being flown by a captain seated in the left seat, who was receiving initial operating experience (IOE). A captain seated in the right seat, was the pilot-in-command (PIC) of the flight. After a cargo flight from Anchorage (ANC) the airplane was landing on runway 17L Louisville-Standiford Field, KY (SDF), a 8,579-foot-long, concrete runway, during night visual meteorological conditions. After main gear touchdown, the nose gear touched down, and subsequently collapsed. The airplane sustained damage to and around the pressure bulkhead, at station 625. Data obtained from the flight data recorder revealed that after main gear touchdown, the control column was moved sharply forward resulting in a change in pitch angle from approximately 5 degrees nose up, to about 1 degree nose down, which was accompanied by a reduction in load factor to approximately 0.3 g's. The vertical load factor then spiked to approximately 2.5 g's on nose wheel contact, over twice that of a typical landing, with a load factor increment of 0.75 g's, also excessive.
The aircraft sustained US$10 million damage.

Probable Cause:

PROBABLE CAUSE: "The flying pilot's improper aircraft handling after main landing gear touchdown, which resulted in the collapse of the nose landing gear assembly. Conributing to the accident was the pilot-in-command's inadequate supervision during the landing.."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years and 9 months
Accident number: NYC05FA094
Download report: Summary report

Sources:
» NTSB id NYC05FA094


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Anchorage-Ted Stevens International Airport, AK et Louisville-Standiford Field, KY est de 4975 km (3109 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 tel qu'ils sont connus à ce jour.
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