ASN Wikibase Occurrence # 280870
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| Date: | Tuesday 26 July 2022 |
| Time: | 14:30 LT |
| Type: |  Grumman G-164B Ag-Cat Turbine |
| Owner/operator: | Thunder Valley Ag Aviation |
| Registration: | N629EH |
| MSN: | 827B |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 6148 hours |
| Engine model: | Pratt & Whitney Canada PT-6 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Knox, IN -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Agricultural |
| Departure airport: | Knox, IN |
| Knox, IN | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The aerial application flight, which was operated within the load limitations of the airplane, was the pilot's 5th flight of that day. The pilot stated that shortly after takeoff, about 15 ft above ground level (agl), the airplane would not continue to climb. The pilot advanced the throttle, but the engine did not seem to respond. The airplane was in a nose-high attitude when the right wing impacted a corn field near the end of the grass airstrip. The airplane came to rest in the corn field and sustained substantial damage to the fuselage and wings.
Postaccident examination of the engine and accessories revealed no mechanical malfunctions or failures that would have precluded normal operation. Earthen debris within the engine, internal rotational scoring, and the exhaust duct torsional buckling were consistent with engine operation at the time of impact. Some contaminants were noted within the engine accessories; however, these contaminants were consistent with environmental exposure during the impact sequence and the presence of rust due to the length of time between the accident and subsequent examinations. The reason for the reported partial loss of engine power could not be determined.
Probable Cause: A partial loss of engine power for undetermined reasons.
Accident investigation:
 |
|
Sources:
NTSB CEN22LA349
https://flightaware.com/photos/view/10621576-0d195dc1fa54e7b27d9bf76ab7e2dc3813e4d7e5/aircrafttype/G164
FAA register: https://registry.faa.gov/aircraftinquiry/Search/NNumberResult?nNumberTxt=629EH
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Jul-2022 13:42 | AgOps | Added |
| 28-Jul-2022 13:54 | harro | Updated [Aircraft type, Departure airport, Destination airport, Source, Narrative] |
| 29-Jul-2022 03:25 | johnwg | Updated [Time, Source, Narrative] |
| 01-Feb-2024 13:03 | ASN Update Bot | Updated [Time, Other fatalities, Phase, Departure airport, Destination airport, Source, Damage, Narrative, Category, Accident report] |
| 01-Feb-2024 13:06 | harro | Updated [Other fatalities, Source, Narrative] |
| 01-Feb-2024 13:06 | harro | Updated [Aircraft type, Other fatalities] |
Corrections or additions? ... Edit this accident description
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