ASN Wikibase Occurrence # 214958
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| Date: | Wednesday 2 October 1985 |
| Time: | |
| Type: |  Piper PA-24-250 Commanche |
| Owner/operator: | |
| Registration: | VH-MCD |
| MSN: | 24-2569 |
| Year of manufacture: | 1961 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Location: | Fork Lagoon, QLD -
 Australia
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Fork Lagoon, QLD |
| Craiglands Station, QLD | |
| Investigating agency: | BASI |
| Confidence Rating: |  Accident investigation report completed and information captured |
When the aircraft was at about 50 feet above ground level after takeoff, the engine lost power, recovered to full power, then lost power again. The pilot commenced an approach for a landing, straight ahead. During the approach the engine again recovered power, the pilot closed the throttle and landed the aircraft in a tree strewn paddock. The left wheel struck a dead tree lying in the paddock and the aircraft ground-looped before coming to rest. The loss of engine power resulted from a design defect within the aircraft fuel system. Wear in the internal valves of the engine driven fuel pump caused valve seats to move off centre and stick open. This allowed fuel under pressure to be recycled back to the inlet of the electric fuel pump and resulted in a loss of fuel pressure to the carburettor. The loss of fuel pressure may have also resulted in fuel vapour locks forming downstream of the electric fuel pump which had been selected on prior to takeoff.
Accident investigation:
 |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1985/aair/aair198503535/
https://www.atsb.gov.au/media/34312/aair198503535.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Sep-2018 02:24 | Pineapple | Added |
| 13-Jun-2020 20:21 | BEAVERSPOTTER | Updated [Cn] |
Corrections or additions? ... Edit this accident description
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