ASN Wikibase Occurrence # 358635
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Date: | Monday 17 July 1995 |
Time: | 08:15 LT |
Type: | Air Tractor AT-301 |
Owner/operator: | Private |
Registration: | N4326S |
MSN: | 301-0006 |
Total airframe hrs: | 7174 hours |
Engine model: | P&W R-1340-AN1 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Roberts, ID -
United States of America
|
Phase: | Initial climb |
Nature: | Ferry/positioning |
Departure airport: | |
Destination airport: | Rigby, ID (U56) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT REPORTED THAT SHORTLY AFTER TAKEOFF, AT 40 FEET ABOVE GROUND LEVEL, THE ENGINE LOST POWER AND BEGAN BACKFIRING. THE PILOT MADE A FORCED LANDING IN A BARLEY FIELD WITH 3-FOOT-TALL CROPS, AND THE AIRPLANE CARTWHEELED. POSTACCIDENT EXAMINATION OF THE ENGINE REVEALED THAT THE EXHAUST VALVE ROCKER ARM HOUSING ON THE NUMBER 3 CYLINDER SEPARATED, DISABLING THE NUMBER 3 CYLINDER EXHAUST VALVE.
Probable Cause: A LOSS OF ENGINE POWER DUE TO THE SEPARATION OF THE NUMBER 3 CYLINDER EXHAUST VALVE ROCKER ARM SHAFT FROM THE CYLINDER HEAD, WHICH DISABLED MOVEMENT OF THE EXHAUST VALVE. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | SEA95LA154 |
Status: | Investigation completed |
Duration: | 6 months |
Download report: | Final report |
|
Sources:
NTSB SEA95LA154
History of this aircraft
Other occurrences involving this aircraft Location
Revision history:
Date/time | Contributor | Updates |
14-Mar-2024 16:33 |
ASN Update Bot |
Added |
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