
Détails:
About 15 minutes after takeoff the crew heard a loud bang. Both hydraulic systems and cabin pressure were lost, so the crew declared an emergency and returned to Washington. The landing gear was lowered manually, but the right main gear did not indicate down and locked. An emergency landing on a foamed runway was carried out. Investigation revealed that a damaged wheel lock-out deboost valve caused the brake of the right main gear to drag. The number 4 tyre caught fire and blew out during flight.
PROBABLEÂ CAUSE(S):
personnel - maintenance,servicing,inspection: inadequate maintenance and inspection
airframe - landing gear: braking system (normal system)
miscellaneous acts,conditions - improper clearance-tolerance
miscellaneous acts,conditions - fire in brakes,wheel assembly,wheel well
FACTOR(S):
miscellaneous acts,conditions - landed on foamed runway
| Statuts: | Accident investigation report completed and information captured |
| Date: | mercredi 8 août 1973 |
| Heure: | 14:33 |
| Type/Sous-type: |  Boeing 727-171C |
| Compagnie: | Braniff International Airways |
| Immatriculation: | N1728T |
| Numéro de série: | 19860/599 |
| Année de Fabrication: | 1968-06-27 (5 years 1 months) |
| Moteurs: | 3 Pratt & Whitney JT8D-9A |
| Equipage: | victimes: 0 / Ã bord: 6 |
| Passagers: | victimes: 0 / Ã bord: 75 |
| Total: | victimes: 0 / Ã bord: 81 |
| Dégats de l'appareil: | Substantiels |
| Conséquences: | Repaired |
| Lieu de l'accident: | près de Washington, DC ( Etats-Unis d'Amérique)
|
| Phase de vol: | En vol (ENR) |
| Nature: | Transport de Passagers Nat. |
| Aéroport de départ: | Washington-Dulles International Airport, DC (IAD/KIAD), Etats-Unis d'Amérique |
| New York-John F. Kennedy International Airport, NY (JFK/KJFK), Etats-Unis d'Amérique |
About 15 minutes after takeoff the crew heard a loud bang. Both hydraulic systems and cabin pressure were lost, so the crew declared an emergency and returned to Washington. The landing gear was lowered manually, but the right main gear did not indicate down and locked. An emergency landing on a foamed runway was carried out. Investigation revealed that a damaged wheel lock-out deboost valve caused the brake of the right main gear to drag. The number 4 tyre caught fire and blew out during flight.
Probable Cause:
PROBABLEÂ CAUSE(S):
personnel - maintenance,servicing,inspection: inadequate maintenance and inspection
airframe - landing gear: braking system (normal system)
miscellaneous acts,conditions - improper clearance-tolerance
miscellaneous acts,conditions - fire in brakes,wheel assembly,wheel well
FACTOR(S):
miscellaneous acts,conditions - landed on foamed runway
Sources:
» NTSBPhotos
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 Washington-Dulles International Airport, DC et New York-John F. Kennedy International Airport, NY est de 364 km (227 miles).
La distance entre Washington-Dulles International Airport, DC et New York-John F. Kennedy International Airport, NY est de 364 km (227 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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