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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 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hastings, FL -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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:
 |
|
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 |
Corrections or additions? ... Edit this accident description
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