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Last updated: 23 February 2020
Statuts:Enquête Officielle
Date:jeudi 27 mars 1980
Heure:14:52
Type/Sous-type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft 200 Super King Air
Compagnie:Lufkin Industries
Immatriculation: N456L
Numéro de série: BB-112
Année de Fabrication: 1975
Moteurs: 2 Pratt & Whitney Canada PT6A-41
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 8 / à bord: 8
Total:victimes: 10 / à bord: 10
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:N of Parker, CO (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Affaires
Aéroport de départ:Denver-Arapahoe County Airport, CO (APA/KAPA), Etats-Unis d'Amérique
Aéroport de destination:Nacogdoches-Lufkin Angelina County Airport, TX (LFK/KLFK), Etats-Unis d'Amérique
Détails:
A Beechcraft 200 Super King Air, N456L, owned and operated by Lufkin Industries, crashed and burned in an open field near Parker, Colorado.
About 9 1/2 minutes after departure from Denver-Arapahoe County Airport, CO (APA), the pilots of N456L declared an emergency because of airframe icing. The aircraft was being vectored to land at Denver-Stapleton International Airport, CO, when it crashed into an open field about 13 miles east of Arapahoe County Airport. The two pilots and eight passengers on board were killed in the crash and subsequent ground fire. The aircraft was destroyed.

Probable Cause:

The National Transportation Safety Board determines that the probable cause of the accident was the rapid accumulation of ice on the underwing surface aft of the deicing boots which destroyed the aircraft's capability to maintain level flight because the flightcrew: failed to obtain a current weather briefing before departure; failed to make a timely decision to discontinue the climb and return to Arapahoe Airport; and operated the over-gross-weight aircraft at high angles of attack in severe icing conditions.

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years and 5 months
Accident number: NTSB/AAR-82-9
Download report: Final report

Sources:
» NTSB-AAR-82-9


Opérations de secours

NTSB issued 4 Safety Recommendations

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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 Denver-Arapahoe County Airport, CO et Nacogdoches-Lufkin Angelina County Airport, TX est de 1292 km (808 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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