ASN Wikibase Occurrence # 358577
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| Date: | Thursday 27 July 1995 |
| Time: | 12:30 LT |
| Type: |  Grumman G-164 Ag-Cat |
| Owner/operator: | Valley Sprayers Inc |
| Registration: | N949X |
| MSN: | 463 |
| Year of manufacture: | 1967 |
| Total airframe hrs: | 8347 hours |
| Engine model: | P&W R-985-AN1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Park River, ND -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Agricultural |
| Departure airport: | (Y37) |
| (Y37) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that the engine run-up, magneto check, and takeoff were normal. He reported that the engine started to pop and shake when he reduced engine power to 2050 RPM's. He applied full throttle but the engine failed to produce additional power. The airplane began to lose altitude and airspeed. An emergency landing was performed into a reservoir. The first post accident engine run was unsuccessful. The left and right magneto breaker point gaps were found set at .003 of an inch instead of .009 of an inch as required. Also the primary lead in the left magneto was grounded against the case and distributor cover. After the two discrepancies were corrected, the engine started and ran to 2050 RPM.
Probable Cause: the loss of power due to the primary lead in the left magneto being grounded against the case, and the improper clearance of the breaker point gaps. A factor was the lack of suitable terrain on which to perform the forced landing.
Accident investigation:
 |
|
Sources:
NTSB CHI95LA250
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 15:54 | ASN Update Bot | Added |
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