Statuts: | Accident investigation report completed and information captured |
Date: | vendredi 29 décembre 1972 |
Heure: | 23:42 |
Type/Sous-type: |  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 / Ã bord: 13 |
Passagers: | victimes: 96 / Ã bord: 163 |
Total: | victimes: 101 / Ã bord: 176 |
Dégats de l'appareil: | Détruit |
Conséquences: | Written off (damaged beyond repair) |
Lieu de l'accident: | Everglades, FL ( Etats-Unis d'Amérique)
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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:
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Investigating agency: | NTSB  |
Status: | Investigation completed |
Duration: | 167 days (6 months) | Accident number: | NTSB/AAR-73-14 | Download report: | Final report
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Sources:
» NTSB-AAR-73-14
Opérations de secours
NTSB issued 9 Safety Recommendations
Issued: 02-MAY-1973 | To: | A-73-11 |
REQUIRE THE INSTALLATION OF A SWITCH FOR THE L-1011 NOSE WHEELWELL LIGHT NEAR THE NOSE GEAR INDICATOR OPTICAL SIGHT. (Closed - Acceptable Action) |
Issued: 02-MAY-1973 | To: | A-73-12 |
REQUIRE, NEAR THE OPTICAL SIGHT, THE INSTALLATION OF A PLACARD WHICH EXPLAINS THE USE OF THE SYSTEM. (Closed - Acceptable Action) |
Issued: 02-MAY-1973 | To: | A-73-13 |
REQUIRE THAT THE ALTITUDE SELECT ALERT LIGHT SYSTEM ON EASTERN AIR LINES-CONFIGURED L-1011 AIRPLANES BE MODIFIED TO PROVIDE A FLASHING LIGHT WARNING TO THE CREW WHENEVER AN AIRPLANE DEPARTS ANY SELECTED ALTITUDE BY + 250 FEET, INCLUDING OPERATIONS BELOW 2,500 FEET RADAR ALTITUDE. (Closed - Unacceptable Action) |
Issued: 12-JUN-1973 | To: | A-73-39 |
TAKE NECESSARY STEPS TO ENSURE THAT ALL AIR CARRIER BEFORE-LANDING AND TAKEOFF CHECKLISTS CONTAIN A "FASTEN SHOULDER HARNESSES" ITEM. (Closed - Acceptable Action) |
Issued: 12-JUN-1973 | To: | A-73-40 |
AMEND 14 CFR 25.785(H) TO REQUIRE PROVISIONS FOR A SHOULDER HARNESS AT EACH CABIN ATTENDANT SEAT, AND AMEND 14 CFR 121.321 TO REQUIRE THAT SHOULDER HARNESSES BE INSTALLED AT EACH CABIN ATTENDANT SEAT. (Closed - Acceptable Action) |
Issued: 12-JUN-1973 | To: | A-73-41 |
AMEND 14 CFR 25.812 TO REQUIRE PROVISIONS FOR THE STOWAGE OF A PORTABLE, HIGH-INTENSITY LIGHT AT CABIN ATTENDANT STATIONS; AND AMEND 14 CFR 121.310 TO REQUIRE THE INSTALLATION OF SUCH PORTABLE, HIGH-INTENSITY LIGHTS AT CABIN ATTENDANT STATIONS. (Closed - Acceptable Action) |
Issued: 12-JUN-1973 | To: | A-73-42 |
AMEND 14 CFR 25.812 TO REQUIRE EXIT SIGN BRIGHTNESS AND GENERAL ILLUMINATION LEVELS IN THE PASSENGER CABIN THAT ARE CONSISTENT WITH THOSE NECESSARY TO PROVIDE ADEQUATE VISIBILITY IN CONDITIONS OF DENSE SMOKE. (Closed - Unacceptable Action) |
Issued: 12-JUN-1973 | To: | A-73-43 |
AMEND 14 CFR 25.812 TO PROVIDE AN ADDITIONAL MEANS FOR ACTIVATING THE MAIN EMERGENCY LIGHTING SYSTEM TO PROVIDE REDUDANCY AND THEREBY IMPROVE ITS RELIABILITY. (Closed - Unacceptable Action) |
Issued: 14-JUN-1973 | To: | A-73-46 |
REVIEW THE ARTS III PROGRAM FOR THE POSSIBLE DEVELOPMENT OF PROCEDURES TO AID FLIGHTCREWS WHEN MARKED DEVIATIONS IN ALTITUDE ARE NOTICED BY AN AIR TRAFFIC CONTROLLER. (Closed - Acceptable Action) |
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Photos

accident date:
29-12-1972type: Lockheed L-1011 TriStar 1
registration: N310EA
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.