ASN logo
Last updated: 15 September 2019
Statuts:Enquête Officielle
Date:lundi 19 octobre 1959
Heure:16:20
Type/Sous-type:Boeing 707-227
Compagnie:Boeing
Immatriculation: N7071
Numéro de série: 17691/45
Année de Fabrication: 1959
Heures de vol:173
Moteurs: 4 Pratt & Whitney JT4A-3
Equipage:victimes: 4 / à bord: 8
Passagers:victimes: 0 / à bord: 0
Total:victimes: 4 / à bord: 8
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:16 km (10 milles) NE of Arlington, WA (   Etats-Unis d'Amérique)
Phase de vol: En cours de manoeuvre (MNV)
Nature:Entrainement
Aéroport de départ:Seattle-Boeing Field International Airport, WA (BFI/KBFI), Etats-Unis d'Amérique
Aéroport de destination:Seattle-Boeing Field International Airport, WA (BFI/KBFI), Etats-Unis d'Amérique
Détails:
The Boeing 707 N7071 was operating on a customer guarantee and acceptance training flight prior to delivery of the plane to Braniff. The plane was being flown by a Braniff captain and a Boeing testpilot as instructor. Other Braniff and Boeing personnel were on board as crew members and observers. A series of Dutch Rolls were performed; one of the rolls was executed beyond the maximum bank restrictions. Control was lost, but the aircraft recovered. During the recovery however, the no. 1, 2 and 4 engines were torn off. An intense fire burned away portions of the jet control near the no. 2 engine attachment area. An emergency descent was carried out and the plane crash-landed along river.

Probable Cause:

PROBABLE CAUSE: "The structural failure induced during an improper recovery attempt from a Dutch Roll which exceeded the angle-of-bank limits prescribed by the company."

Sources:
» ICAO Accident Digest, Circular 62-AN/57 (190-194)


Photos

photo of -
 

Plan

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.
languages: languages

Share

  • built
  • 2ème loss
  • 2ème accident fatal
  • le accident 2ème le plus grave (à ce moment là)
  • le accident 61ème le plus grave (en ce moment)
» safety profile