ASN Wikibase Occurrence # 59848
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| Date: | Monday 4 May 2009 |
| Time: | 16:20 |
| Type: |  Grumman G-164B Ag-Cat |
| Owner/operator: | Private |
| Registration: | N6628Q |
| MSN: | 154B |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 9447 hours |
| Engine model: | Pratt & Whitney R1340-AN2 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Colfax, Washington State -
 United States of America
|
| Phase: | Take off |
| Nature: | Agricultural |
| Departure airport: | Colfax, WA (S94) |
| Colfax, WA (S94) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated that the airplane was about 100 feet above ground level following takeoff when the engine lost power. He landed straight ahead in a muddy dirt field. During the landing roll, the airplane nosed over and the engine separated from the airframe. Postaccident examination of the engine core revealed no anomalies that would have precluded normal operation. Examination of the carburetor revealed that the bushings on the throttle shaft and pump stem were worn, which allowed excessive play. The economizer linkage was also found to be loose; there was evidence of fretting on the mating surface to the engine and around the mounting bolt holes. The carburetor fuel screen was clean. The floats exhibited hydraulic crush damage consistent with fuel in the bowl, and the accelerator pump was worn. Based on the findings of the postaccident examination, excessive wear of the carburetor likely led to the loss of engine power.
Probable Cause: A total loss of engine power due to excessive wear in several carburetor components that led to a malfunction of the carburetor.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=6628Q
History of this aircraft
Other occurrences involving this aircraft
| 9 July 1991 | N6628Q | Bettencourt Flying Svc., Inc. | 0 | Crows Landing, CA | |
w/o |
| 15 August 2011 | N6628Q | Fender Air Service, Inc | 0 | Oakesdale, Washington | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-May-2009 11:52 | slowkid | Added |
| 13-Mar-2016 21:12 | Dr.John Smith | Updated [Time, Cn, Operator, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 02-Dec-2017 14:56 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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