ASN Wikibase Occurrence # 217303
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| Date: | Sunday 26 April 1987 |
| Time: | 18:05 |
| Type: |  Piper PA-28-180 |
| Owner/operator: | |
| Registration: | VH-DMB |
| MSN: | 28-7405012 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Location: | 1km SW of Mataranka Homestead, NT -
 Australia
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Mataranka, NT |
| Mataranka Homestead, NT | |
| Investigating agency: | BASI |
| Confidence Rating: |  Accident investigation report completed and information captured |
Just after the aircraft reached the top of climb, at 1000 feet above the ground, the engine failed. The pilot was unable to rectify the problem and decided to land the aircraft on a road. During the landing roll the left wing struck a roadsign and the aircraft ran off the road, then travelled a further 100 metres before colliding with a tree. Engineering investigation revealed that the stepped dowel used to align the crankshaft timing gear had failed. This resulted in the crankshaft and camshaft timing being 30 degrees out of alignment, hence the inability of the engine to deliver any power. The stepped dowel failed due to the crankshaft timing gear retaining bolt being incorrectly torqued which allowed the gear to move on the crankshaft and eventually shear the dowel. The engine had been overhauled prior to the occurrence and it is likely that the bolt was incorrectly torqued due to oil or dirt being located between the gear and the crankshaft during engine reassembly.
Accident investigation:
 |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1987/aair/aair198700729/
https://www.atsb.gov.au/media/28140/aair198700729.pdf
History of this aircraft
Other occurrences involving this aircraft
| 7 August 1988 | VH-DMB | 4 | South Passage Bar, Moreton Bay, QLD | |
w/o | |
| Mid-air collision | ||||||
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Nov-2018 08:25 | Pineapple | Added |
Corrections or additions? ... Edit this accident description
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