ASN Wikibase Occurrence # 355990
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| Date: | Saturday 19 April 1997 |
| Time: | 14:00 LT |
| Type: |  Air Tractor AT-400 |
| Owner/operator: | Benny White Flying Svc Inc |
| Registration: | N73127 |
| MSN: | 301-0667 |
| Year of manufacture: | 1987 |
| Total airframe hrs: | 3562 hours |
| Engine model: | P&W PT6A-27 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Fluvanna, TX -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Lamesa, TX |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was performing a swath run when he felt a vibration, and then the engine lost power. A forced landing was initiated to a plowed field. During the landing sequence, the left main landing gear separated from the fuselage, and the right wing spar was bent upward. A teardown inspection of the airplane's engine revealed that the reduction gear box failed and sheared the drive shaft. According to the FAA inspector, 'This failure allowed a turbine over speed to the point that the turbine blades separated from the wheel causing a contained catastrophic failure.'
Probable Cause: The loss of engine power due to the failure of the reduction gear box. A factor was the lack of suitable terrain for the forced landing.
Accident investigation:
 |
|
Sources:
NTSB FTW97LA169
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 17:51 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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