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Accident
Last updated: 6 December 2016
Statuts:Enquête Officielle
Date:dimanche 21 août 1983
Heure:18:32
Type/Sous-type:Silhouette image of generic L18 model; specific model in this crash may look slightly different
Lockheed 18 Learstar II
Compagnie:Command Aviation
Immatriculation: N116CA
Numéro de série: 18-2472
Année de Fabrication: 1943
Moteurs: 2 Wright R-1820-76B
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 9 / à bord: 24
Total:victimes: 11 / à bord: 26
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:près de Stanwood, WA (   Etats-Unis d'Amérique)
Phase de vol: En cours de manoeuvre (MNV)
Nature:Parachutage
Aéroport de départ:Arlington Municipal Airport, WA (AWO/KAWO), Etats-Unis d'Amérique
Aéroport de destination:Arlington Municipal Airport, WA (AWO/KAWO), Etats-Unis d'Amérique
Détails:
At 12,500 feet over the drop zone 16 parachutist exited the plane. Then the aircraft lost control and three jumpers hit the stabilizer. The aircraft crashed in a near vertical descent. Investigation revealed the centre of gravity was behind the aft limit for takeoff and the jump. The elevator trim actuator was found in a position for full nose-up trim.

PROBABLE CAUSE:
supervision .. improper .. company/operator management
aircraft weight and balance .. exceeded .. pilot in command
stall .. inadvertent .. pilot in command

Sources:
» NTSB

Official accident investigation report
cover
investigating agency: National Transport Safety Bureau (NTSB) - United States of America
report status: Final
report number: NTSB/AAR-84/06
report released:17 May 1984
duration of investigation: 270 days (9 months)
download report: NTSB/AAR-84/06

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