ASN Wikibase Occurrence # 352629
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| Date: | Monday 13 September 1999 |
| Time: | 08:15 LT |
| Type: |  Air Tractor AT-401 |
| Owner/operator: | Private |
| Registration: | N45205 |
| MSN: | 401-0756 |
| Engine model: | Garrett TPE331-201A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Caledonia, MS -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Columbus, MS (KGTR) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was spraying chemicals on a cotton field at an altitude of 300 ft. An hour and a half into the flight, he entered a right turn and the engine lost power. During the initiated forced landing, the right wing collided with a tree. The airplane spun to the right, colliding with the ground nose first, bounced several times, then came to rest. Post-examination of the engine revealed that there was an interruption of the direct drive fuel control (DDFC) gear-train due to a loss of mechanical contact between the teeth of the second and third DDFC gears. The cause for the interference was believed to have been due to excessive loading of the forward gear teeth of the third DDFC gear resulting in loss of material from the third DDFC gear. No assembly, dimensional or material defects were identified which would contribute to excessive loading or interference between the second and third DDFC gears.
Probable Cause: The failure of the fuel control gear train due to oil contamination. A factor was Inadequate maintenance.
Accident investigation:
 |
|
Sources:
NTSB ATL99LA129
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Mar-2024 12:29 | ASN Update Bot | Added |
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