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Last updated: 17 January 2022
Statuts:Enquête Officielle
Date:vendredi 17 juillet 1987
Heure:19:30
Type/Sous-type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft B200 Super King Air
Compagnie:Richard P. Lieberman
Immatriculation: N1870S
Numéro de série: BB-1106
Année de Fabrication: 1983
Heures de vol:478
Moteurs: 2 Pratt & Whitney Canada PT6A-42
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 3 / à bord: 3
Total:victimes: 4 / à bord: 4
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Crystal Bay, NV (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Privé
Aéroport de départ:Hayward Air Terminal, CA (HWD/KHWD), Etats-Unis d'Amérique
Aéroport de destination:Lake Tahoe Airport, CA (TVL/KTVL), Etats-Unis d'Amérique
Détails:
While on an instrument flight plan in IMC, the flight was cleared for an instrument approach to the South Lake Tahoe Airport, the intended destination. The aircraft departed the initial approach fix on the published transition to the final approach course. Radar contact was lost at 11,400 feet. Afterward, the aircraft was observed descending out of clouds and manoeuvring erratically in VMC until it impacted terrain with no apparent attempt to recover. Medical records revealed pilot had a history of hypertension, hyperlipidemia, and recent loss of 41 pounds on a rigid weight loss program. The autopsy revealed severe arteriosclorosis. Medical records indicated the pilot had been taking diazide intermittently for several years. Post-accident tox results were negative. The circumstances of the accident, in combination with the pilot's severe diet, medical history, and postmortem examination results support the conclusion that the pilot became incapacitated in flight.

Probable Cause:

PROBABLE CAUSE:
Incapacitation(other cardiovascular)..pilot in command

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 10 months
Accident number: SEA87FA141
Download report: Summary report


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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 Hayward Air Terminal, CA et Lake Tahoe Airport, CA est de 229 km (143 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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