ASN Wikibase Occurrence # 371268
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Date: | Thursday 14 April 1988 |
Time: | 12:00 LT |
Type: | Air Tractor AT-301 |
Owner/operator: | Lee Inmon |
Registration: | N8841S |
MSN: | 301-0212 |
Year of manufacture: | 1979 |
Total airframe hrs: | 4680 hours |
Engine model: | P&W R-1340-53HL |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Hastings, FL -
United States of America
|
Phase: | Initial climb |
Nature: | Agricultural |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:WHILE ON AN AERIAL APPLICATION FLT SHORTLY AFTER TAKEOFF, THE ENG LOST POWER. THE PLT THEN DUMPED THE LOAD OF FERTILIZER & LANDED THE ACFT IN A FIELD. AFTER TOUCHDOWN IT NOSED OVER & CAME TO REST. EXAMINATION OF THE ENG REVEALED THAT THE NO. FOUR CYLINDER EXHAUST VALVE ROCKER ARM SUPPORT FAILED PREVENTING THE VALVE FROM OPENING. AS A RESULT OF THE EXCESS PRESSURE INSIDE THE CYLINDER WHEN THE INTAKE VALVE OPENED. THE EXHAUST WAS FORCED THROUGH THE INTAKE SYSTEM RESULTING IN ENG BACKFIRING.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | MIA88LA147 |
Status: | Investigation completed |
Duration: | 11 months |
Download report: | Final report |
|
Sources:
NTSB MIA88LA147
History of this aircraft
Other occurrences involving this aircraft
2 June 1991 |
N8841S |
Inmon, Lee |
0 |
High Springs, FL |
|
sub |
15 July 2007 |
N8841S |
Northern Ag Service Inc |
0 |
Lignite, North Dakota |
|
sub |
Revision history:
Date/time | Contributor | Updates |
25-Mar-2024 19:48 |
ASN Update Bot |
Added |
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