ASN Wikibase Occurrence # 358262
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Date: | Saturday 16 September 1995 |
Time: | 11:30 LT |
Type: | Air Tractor AT-301 |
Owner/operator: | Gosa's Aerial Ag |
Registration: | N2362D |
MSN: | 0404 |
Total airframe hrs: | 5731 hours |
Engine model: | P&W R1340-AN1 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Plains, GA -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Agricultural |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:During the first spray run of an aerial application flight, the engine lost power. Subsequently, the aircraft nosed over during a forced landing and was damaged. An examination of the engine revealed that the number four cylinder rocker arm housing had fractured. The fracture surface had a rough, granular, and irregular appearance, typical of overload failure. There was evidence that when the rocker arm housing became separated from the cylinder, the rocker arm pin failed, allowing the rocker arm to separate from the cylinder and resulting in a loss of continuity to the exhaust valve. The exhaust valve then remained closed, and the engine lost power.
Probable Cause: Failure of the number four cylinder rocker arm housing and pin, which resulted in a closed exhaust valve and loss of engine power.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ATL95LA169 |
Status: | Investigation completed |
Duration: | 7 months |
Download report: | Final report |
|
Sources:
NTSB ATL95LA169
Location
Revision history:
Date/time | Contributor | Updates |
14-Mar-2024 11:35 |
ASN Update Bot |
Added |
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