Statuts: | Accident investigation report completed and information captured |
Date: | lundi 12 juin 1972 |
Heure: | 19:44 EST |
Type/Sous-type: | McDonnell Douglas DC-10-10 |
Compagnie: | American Airlines |
Immatriculation: | N103AA |
Numéro de série: | 46503/5 |
Année de Fabrication: | 1971 |
Heures de vol: | 2142 |
Moteurs: | 3 General Electric CF6-6D |
Equipage: | victimes: 0 / à bord: 11 |
Passagers: | victimes: 0 / à bord: 56 |
Total: | victimes: 0 / à bord: 67 |
Dégats de l'appareil: | Substantiels |
Conséquences: | Repaired |
Lieu de l'accident: | près de Windsor, ON ( Canada)
|
Phase de vol: | En vol (ENR) |
Nature: | Transport de Passagers Nat. |
Aéroport de départ: | Detroit-Metropolitan Wayne County Airport, MI (DTW/KDTW), Etats-Unis d'Amérique |
Aéroport de destination: | Buffalo-Greater Buffalo International Airport, NY (BUF/KBUF), Etats-Unis d'Amérique |
Numéro de vol: | AA96 |
Détails:American Flight 96 had departed Detroit-Metropolitan Airport and was climbing through 11,750 feet at 260 kt IAS when the flightcrew felt a "thud". Simultaneously dust and dirt flew up into their faces, the rudder pedals moved to the full left-rudder position, the three thrust levers moved back to the near flight-idle position and the airplane yawed to the right. The crew managed to regain control of the plane, although a.o. elevator response was sluggish, and rudder control was not available. An emergency was declared and the crew returned to Detroit. A safe runway 03 long final approach and landing were carried out.
It appeared that a cargo door had separated, causing a rapid decompression, which, in turn, caused failure of the cabin floor over the bulk cargo compartment.
The separated door caused minor damage to the fuselage above the door and substantial damage to the leading edge and upper surface of the left horizontal
stabilizer.
Probable Cause:
PROBABLE CAUSE: "The improper engagement of the latching mechanism for the aft bulk cargo compartment door during the preparation of the airplane for flight. The design characteristics of the door latching mechanism permitted the door to be apparently closed when, in fact, the latches were not fully engaged, and the latch lockpins were not in place."
Accident investigation:
|
Investigating agency: | NTSB |
Status: | Investigation completed |
Duration: | 261 days (9 months) | Accident number: | NTSB-AAR-73-02 | Download report: | Final report
|
|
Sources:
» NTSB AAR-73-2
Opérations de secours
NTSB issued 5 Safety Recommendations
Issued: 06-JUL-1972 | To: | A-72-97 |
REQUIRE A MODIFICATION TO THE DC-10 CARGO DOOR LOCKING SYSTEM TO MAKE IT PHYSICALLY IMPOSSIBLE TO POSITION THE EXTERNAL LOCKING HANDLE AND VENT DOOR TO THEIR NORMAL DOOR LOCKED POSITIONS UNLESS THE LOCKING PINS ARE FULLY ENGAGED. (Closed - Acceptable Action) |
Issued: 06-JUL-1972 | To: | A-72-98 |
REQUIRE THE INSTALLATION OF RELIEF VENTS BETWEEN THE CABIN AND AFT CARGO COMPARTMENT TO MINIMIZE THE PRESSURE LOADING ON THE CABIN FLOORING IN THE EVENT OF SUDDEN DEPRESSURIZATION OF THE CARGO COMPARTMENT. (Closed - Acceptable Action) |
Issued: 22-MAR-1974 | To: | A-74-27 |
REQUIRE THAT THE PROVISIONS OF THE MCDONNELL-DOUGLAS SERVICE BULLETIN 52-49, ENTITLED "DOORS-CARGO-INSTALL REVISED \'CLOSED LOOP\' CARGO DOOR LOCKING MECHANISM," BE MADE MANDATORY BY THE IMMEDIATE ISSUANCE OF AN AIRWORTHINESS DIRECTIVE. (Closed - Acceptable Action) |
Issued: 22-MAR-1974 | To: | A-74-28 |
EXPEDITE YOUR RESOLUTION OF THE CABIN FLOORING VENTING PROBLEM SO AS TO INCORPORATE THE FLOORING MODIFICATION BY AIRWORTHINESS DIRECTIVES AT THE EARLIEST PRACTICAL DATE. (Closed - Acceptable Action) |
Issued: 22-MAR-1974 | To: | A-74-29 |
AMEND THE AIRWORTHINESS DIRECTIVE OF MARCH 6, 1974, TO REQUIRE AN IMPROVED VIEWING WINDOW AND ILLUMINATION OF THE LOCK PIN AREA IN ORDER TO PERMIT FULL VISUAL OBSERVATION OF THE LOCKING MECHANISM SO THAT POSITIVE VERIFICATION CAN BE MADE OF PROPER LOCKING PIN ENGAGEMENT. (Closed - Acceptable Action) |
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Photos
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 Detroit-Metropolitan Wayne County Airport, MI et Buffalo-Greater Buffalo International Airport, NY est de 384 km (240 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.