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Last updated: 10 December 2018
Statuts:Enquête Officielle
Date:samedi 29 décembre 1962
Heure:12:12 UTC
Type/Sous-type:Boeing S.307B-1 Stratoliner
Compagnie:Airnautic
Immatriculation: F-BELZ
Numéro de série: 2001
Année de Fabrication: 1940
Heures de vol:41150
Moteurs: 4 Wright R-1820-97
Equipage:victimes: 3 / à bord: 3
Passagers:victimes: 22 / à bord: 22
Total:victimes: 25 / à bord: 25
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Monte Renoso, Corsica (   France)
Élévation des lieux de l'accident: 2285 m (7497 feet) amsl
Phase de vol: En vol (ENR)
Nature:Charter National
Aéroport de départ:Bastia-Poretta Airport (BIA/LFKB), France
Aéroport de destination:Ajaccio-Campo Dell'Oro Airport (AJA/LFKJ), France
Détails:
The Boeing SA.307 Stratoliner F-BELZ arrived at Bastia (BIA), France from Nice (NCE) at 05:25 UTC. The plane took off again for the return flight via Ajaccio (AJA), Corsica at 11:49 and was cleared for a cruising altitude of FL120, estimating Ajaccio at 12:20 UTC. Last radio contact with the flight was at 12:09 when th flight crew replied to the weather and active runway information from Ajaccio Approach.
At 12:12 the flight flew into a sheer rock face of Monte Renoso which is located 45 km from the Ajaccio VOR on the 048 radial. Impact was at an altitude of 2285 m (7500 feet) and about 50 m (165 feet) below the summit. The aircraft rebounded after impact and fell about 100 m down the slope of the mountain.

Probable Cause:

PROBABLE CAUSE: "The accident was attributed to a series of errors by the crew who: (1) made insufficient preparation for the flight and committed a serious error in estimating the duration of the flight. (2) failed to observe the cruising altitude entered on the flight plan. (3) failed to check properly the navigation of the aircraft which resulted in a wrong estimation of the position of the aircraft. (4) failed to maintain the safety altitude. and (5) started the descent prematurely, subsequently entering into instrument flight conditions. The errors of the crew were made possible (1) by a lack of supervision of the flights on the part of the operator; and (2) by a lack of correct route instructions for the segment Bastia-Ajaccio. The Board was led to conclude that the crew of F-BEIZ did not have the necessary instructions for the route via the turning point. Even supposing that the instructions supplied to the Board by the operator were issued before the accident, and that they were available to the pilot-in-command, the Board considered that these instructions were inaccurate and dangerous since they did not give the altitude at the turning point and they provided for a flight time between Bastia and Ajaccio which was incompatible with the attainment of safety altitudes. (3) by a certain fatigue of the crew. Although the regulations concerning flight time limitations were strictly observed, it is worth mentioning that the flight activity of the crew was fairly strenuous during the three days preceding the accident."

Accident investigation:
cover
Investigating agency: BEA
Status: Investigation completed
Duration: 109 days (4 months)
Accident number: f-lz621229
Download report: Final report

Sources:
» Air Pictorial 2/66 p.57
» ICAO Accident Digest No.14 Volume I, Circular 71-AN/63 (108-111)


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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 Bastia-Poretta Airport et Ajaccio-Campo Dell'Oro Airport est de 89 km (56 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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