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Last updated: 20 June 2018
Statuts:Enquête Officielle
Date:mardi 12 mai 1970
Type/Sous-type:Aero Spacelines 377MGT Mini Guppy Turbine
Compagnie:Aero Spacelines
Immatriculation: N111AS
Numéro de série: 0001
Année de Fabrication: 1970-03-13 (2 months)
Moteurs: 4 Allison 501-D22C
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 0 / à bord: 0
Total:victimes: 4 / à bord: 4
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Edwards AFB, CA (EDW) (   Etats-Unis d'Amérique)
Phase de vol: Au décollage (TOF)
Aéroport de départ:Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique
Aéroport de destination:Edwards AFB, CA (EDW/KEDW), Etats-Unis d'Amérique
The Aero Spacelines 377MGT was a converted Boeing Stratoliner. Prototype N111AS first flew on March 13, 1970. In the following period flight testing was carried out, a.o. at Edwards AFB. The accident occurred during the sixth takeoff of Flight Number 12 following the scheduled shutdown of the engine number one at about 109 knots IAS. The takeoff was being made on runway 22 and the wind was from approximately 200 degrees at about 10 knots. Rotation occured at about 114 knots and several seconds after rotation, according to one witness, the aircraft turned and rolled to the left, settling as it did so. The left wingtip subsequently contacted the ground, causing a severe yaw. The forward fuselage struck the ground, causing the flight deck to be destroyed.

Probable Cause:

miscellaneous acts,conditions - simulated conditions
misc-ctl loss at critical time-cause undetermined

» NTSB File 3-4387
» All About Guppys web site


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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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