Crash-aerien 13 MAR 1974 d'un Convair CV-440 N4819C - Bishop Airport, CA (BIH)
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Statuts:Accident investigation report completed and information captured
Date:mercredi 13 mars 1974
Heure:20:28
Type/Sous-type:Silhouette image of generic CVLP model; specific model in this crash may look slightly different
Convair CV-440
Compagnie:Sierra Pacific Airlines
Immatriculation: N4819C
Numéro de série: 138
Année de Fabrication: 1953
Heures de vol:41112
Moteurs: 2 Pratt & Whitney R-2800-CB16
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 32 / à bord: 32
Total:victimes: 36 / à bord: 36
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:8,3 km (5.2 milles) SE of Bishop Airport, CA (BIH) (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 1860 m (6102 feet) amsl
Phase de vol: En vol (ENR)
Nature:Charter National
Aéroport de départ:Bishop Airport, CA (BIH/KBIH), Etats-Unis d'Amérique
Aéroport de destination:Hollywood-Burbank Airport, CA (BUR/KBUR), Etats-Unis d'Amérique
Numéro de vol: 802
Détails:
The aircraft was chartered by Wolper Productions Inc. to fly a movie production crew from Bishop (BIH) to Burbank (BUR). The cast and crew of the television series 'Primal Man' was returning from shooting a prehistoric hunting sequence in the snow-covered Sierra. Amongst the crew were director-writer Dennis Azzarella and actor Janos Prohaska.
Flight 802 departed Hollywood-Burbank Airport at 18:14 to pick up the passengers at Bishop. The flight from Burbank to Bishop was conducted under VFR conditions and at 19:10 the crew contacted the Tonopah Flight Service Station (FSS) and cancelled their VFR flight plan. The crew then "air filed" an IFR flight plan for the return trip from Bishop to Burbank. The aircraft landed at Bishop at 19:20. Baggage and equipment were loaded and 32 passengers boarded the flight. The Convair CV-440 departed the gate at about 20:20. The crew then contacted the Tonopah FSS and advised that they were taxiing for departure and requested that their IFR clearance be activated.
After takeoff from runway 12 the flight made a climbing right turn, circled back over, or near, the BIH VOR and then proceeded outbound in an east-southeasterly direction.
At 20:24 Flight 802 again contacted the Tonopah FSS and reported that they were off Bishop at 20:20 and were, "climbing VFR over Bishop, awaiting clearance."
About four minutes later the aircraft struck a foothill in the White Mountain range at an elevation of 6100 feet (1860 m). The aircraft was on a heading of about 175 degrees magnetic and in an approximate 25 degree bank to the right at impact.

Probable Cause:

PROBABLE CAUSE: "The National Transportation Safety Board is unable to determine the probable cause of this accident. The reason why the flightcrew did not maintain a safe distance from hazardous terrain during night visual flight conditions could not be established."

Accident investigation:

cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 10 months
Accident number: NTSB/AAR-75-01
Download report: Final report

Sources:
» The Victoria Advocate - May 16, 1974


Opérations de secours

NTSB issued 3 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 Bishop Airport, CA et Hollywood-Burbank Airport, CA est de 350 km (219 miles).
Accident location: Exact; as reported in the official accident report.

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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Convair CV-440

  • 233 built
  • 19ème loss
  • 11ème accident fatal
  • le accident 3ème le plus grave (à ce moment là)
  • le accident 4ème le plus grave (en ce moment)
» safety profile

 Etats-Unis d'Amérique
  • le accident 69ème le plus grave (à ce moment là)
  • le accident 97ème le plus grave (en ce moment)
» safety profile

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