ASN Wikibase Occurrence # 368348
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| Date: | Monday 24 July 1989 |
| Time: | 15:15 LT |
| Type: |  Hughes 269C |
| Owner/operator: | Io Aviation |
| Registration: | N58344 |
| MSN: | 1090836 |
| Engine model: | LYCOMING HIO-360-D1A |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kalapana, HI -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Hilo, HI (ITO) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT EXECUTED AN AUTOROTATION INTO HIGH VEGETATION AND TREES FOLLOWING AN ENGINE FAILURE. POST ACCIDENT EXAM OF THE ENGINE REVEALED THE NO. 2 CYLINDER EXHAUST VALVE FAILED. EXAMINATION OF THE ENGINE LOGBOOK REVEALED LYCOMING SERVICE BULLETIN 388A HAD NOT BEEN ACCOMPLISHED.
Probable Cause: THE LOSS OF ENGINE POWER DUE TO THE FAILURE OF THE ENGINE EXHAUST VALVE IN THE NO. 2 CYLINDER AND THE DISREGARD OF THE LYCOMING SERVICE BULLETIN BY COMPANY MAINTENANCE PERSONNEL. CONTRIBUTING TO THE ACCIDENT WAS THE HIGH VEGETATION AND TREES LOCATED AT THE FORCED LANDING SITE.
Accident investigation:
 |
|
Sources:
NTSB LAX89LA246
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 17:26 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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