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- Fonte1
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Circular 202: aircraft accident digest n.31 1984. Montreal, 1988. (Cir. 202-AN/123)
- Contexto
- - The site was relatively clear and the wreckage had not been moved to any great extent prior to the arrival of the investigators. - At the time of the initial impact, the aircraft was on the north-south axis, heading north, roughly at right angles to the west-east axis (radial 094' Abidjan-IVORY). The landing gear and flaps were retracted and it appeared to have been operating in almost level flight. - While flying in this configuration, the aircraft's initial impact was with a tree trunk almost 300 cm in diameter, which it struck violently at a height of about 20 metres with the right wing tip, leaving a large and very visible mark at the point of impact. - Thoroughly out of trim, the aircraft plunged downwards, and along the path of its fall it first struck and sheared off a tree 10cm in diameter at a height of 3 metres, about 18 metres away from the first one; then, 10 metres further on, it crashed into the ground nose down at the foot of a third tree (40 cm in diameter at ground level). One of the right propeller blades made a deep cut in the tree trunk at ground level. - Although examination of the wreckage was rendered exceptionally difficult by the impact and fire damage, several observations came to light in the course of the technical investigation: - The landing gear and flaps were retracted. - The altimeter was jammed at 400 ft (elevation of the crash site plus tree). - The RPM indicator, the front of which was partly smashed 'in, indicated 1550 revolutions per minute for the right engine and 1250 revolutions per minute for the left engine. - On the control panel: - the propeller controls were full forward at fine pitch - the throttle control was full forward at full throttle - the mixture control was full forward at full pitch - both the pilot's wristwatch and the on-board clock had stopped at approximately 2330 hours UTC. - however, there were none of the usual traces on the wreckage to suggest that the aircraft had been struck by lightning.
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