ASN Wikibase Occurrence # 355853
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| Date: | Tuesday 20 May 1997 |
| Time: | 11:00 LT |
| Type: |  Piper PA-28-140 |
| Owner/operator: | Private |
| Registration: | N32142 |
| MSN: | 28-7525027 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 7470 hours |
| Engine model: | Lycoming O-320-E3D |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hysham, MT -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Miles City, MT (KMLS) |
| Billings, MT (KBIL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that while in cruise flight, he heard a 'pop' from the engine and then felt a vibration. The engine lost partial power and the pilot tried to troubleshoot to find the problem. The pilot was unable to identify the problem and maneuvered the airplane to a nearby airstrip. The pilot stated that he tried twice to land on the 2,950-foot-long airstrip, however, each time the airplane's altitude was too high. The pilot opted to divert to an open field where he maneuvered the airplane to avoid obstructions. During the landing, the landing gear was sheared off and the wings were structurally damaged. During the postcrash inspection of the engine, the number three exhaust valve was found broken at the neck. The head of the valve was found lodged in the exhaust manifold.
Probable Cause: A failure of an engine exhaust valve and the pilot's misjudgement of altitude/distance during an emergency landing at an airstrip.
Accident investigation:
 |
|
Sources:
NTSB SEA97LA116
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 16:24 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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