ASN Wikibase Occurrence # 217972
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Date: | Tuesday 10 November 1987 |
Time: | 10:55 |
Type: | Bell 206B-3 JetRanger III |
Owner/operator: | |
Registration: | VH-AZH |
MSN: | 3075 |
Year of manufacture: | 1980 |
Fatalities: | Fatalities: 0 / Occupants: 3 |
Aircraft damage: | Substantial |
Location: | 78km S of Mount Magnet, WA -
Australia
|
Phase: | Landing |
Nature: | Survey |
Departure airport: | 79km S of Mount Magnet, WA |
Destination airport: | 78km S of Mount Magnet, WA |
Investigating agency: | BASI |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Due to a loose seat belt banging against the fuselage of the helicopter, the pilot slowed the aircraft and commenced an approach to land as soon as possible. The chosen approach path had a tailwind of between 15 and 20 knots. Shortly after commencing the approach, the rate of descent increased rapidly and the pilot's application of collective pitch to correct the situation further increased the descent rate. During the approach, both the audio and visual annunciators indicated that the engine had failed. The pilot lowered collective but then had to flare as the aircraft was about to impact a small mulga tree. The aircraft cleared that tree but was damaged as a result of a collision with a nearby tree. The rapid rate of descent experienced whilst descending downwind with a low forward speed is typical of an aircraft which has settled in its own main rotor downwash, i.e in a Vortex Ring State. No defect was found in the engine which might have explained the reported engine failure. It is possible that the pilot inadvertently selected the throttle to the engine shut-off position as he commenced autorotative flight.
Accident investigation:
|
| |
Investigating agency: | BASI |
Report number: | |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1987/aair/aair198700112/ https://www.atsb.gov.au/media/32111/aair198700112.pdf
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
17-Nov-2018 08:22 |
Pineapple |
Added |
22-Jul-2023 05:59 |
Ron Averes |
Updated |
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