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Accident
Last updated: 24 November 2017
Statuts:Enquête Officielle
Date:vendredi 29 décembre 1972
Heure:23:42
Type/Sous-type:Silhouette image of generic L101 model; specific model in this crash may look slightly different
Lockheed L-1011-385-1 TriStar 1
Compagnie:Eastern Air Lines
Immatriculation: N310EA
Numéro de série: 1011
Année de Fabrication: 1972
Heures de vol:986
Cycles:502
Moteurs: 3 Rolls-Royce RB211-22C
Equipage:victimes: 5 / à bord: 13
Passagers:victimes: 96 / à bord: 163
Total:victimes: 101 / à bord: 176
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Everglades, FL (   Etats-Unis d'Amérique)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:New York-John F. Kennedy International Airport, NY (JFK/KJFK), Etats-Unis d'Amérique
Aéroport de destination:Miami International Airport, FL (MIA/KMIA), Etats-Unis d'Amérique
Numéro de vol:EA401
Détails:
Flight EA401 departed New York-JFK at 21:20 EST for a flight to Miami. The flight was uneventful until the approach to Miami. After selecting gear down, the nosegear light didn't indicate 'down and locked'. Even after recycling the gear, the light still didn't illuminate. At 23:34 the crew called Miami Tower and were advised to climb to 2000 feet and hold. At 23:37 the captain instructed the second officer to enter the forward electronics bay, below the flight deck, to check visually the alignment of the nose gear indices. Meanwhile, the flight crew continued their attempts to free the nosegear position light lens from its retainer, without success. The second officer was directed to descend into the electronics bay again at 23:38 and the captain and first officer continued discussing the gear position light lens assembly and how it might have been reinserted incorrectly. At 23:40:38 a half-second C-chord sounded in the cockpit, indicating a +/- 250 feet deviation from the selected altitude. None of the crewmembers commented on the warning and no action was taken. A little later the Eastern Airlines maintenance specialist, occupying the forward observer seat went into the electronics bay to assist the second officer with the operation of the nose wheel well light.
At 23:41:40 Miami approach contacted the flight and granted the crew's request to turn around by clearing him for a left turn heading 180 degrees. At 23:42:05 the first officer suddenly realized that the altitude had dropped. Just seven seconds afterwards, while in a left bank of 28deg, the TriStar's no. 1 engine struck the ground, followed by the left main gear. The aircraft disintegrated, scattering wreckage over an area of flat marshland, covering a 1600 feet x 300 feet area.
Five crew members and 94 passengers died in the accident. Two passengers died more than seven days after the accident as a result of their injuries.

Probable Cause:

PROBABLE CAUSE: "The failure of the fight crew to monitor the flight instruments during the final 4 minutes of flight, and to detect an unexpected descent soon enough to prevent impact with the ground. Preoccupation with a malfunction of the nose landing gear position indicating system distracted the crew's attention from the instruments and allowed the descent to go unnoticed."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 167 days (6 months)
Accident number: NTSB/AAR-73-14
Download report: Final report

Sources:
» NTSB-AAR-73-14


Opérations de secours

NTSB issued 9 Safety Recommendations

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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 New York-John F. Kennedy International Airport, NY et Miami International Airport, FL est de 1745 km (1091 miles).
Accident location: Exact; as reported in the official accident report.

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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