ASN Wikibase Occurrence # 353059
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| Date: | Tuesday 6 July 1999 |
| Time: | 19:30 LT |
| Type: |  Grumman G-164A Ag-Cat |
| Owner/operator: | Private |
| Registration: | N7869 |
| MSN: | 1003 |
| Total airframe hrs: | 6227 hours |
| Engine model: | P&W R-985-14B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | New Plymouth, ID -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Immediately after takeoff the pilot sensed a loss of engine performance and attempted to return to the departure airstrip. Unable to maintain altitude, he dumped the chemical load and then initiated a forced landing to an agricultural (sugar beet) field. The pilot was unable to stop the aircraft before reaching an irrigation ditch and impacted the upsloping terrain at the ditch's opposite side. Partial disassembly of the engine revealed that a gear tooth from the engine's supercharger blower section had broken off and was found in the blower drive section.
Probable Cause: Loss of engine power due to failure of the supercharger impeller. A contributing factor was the ditch.
Accident investigation:
 |
|
Sources:
NTSB SEA99LA107
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 09:56 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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