ASN Wikibase Occurrence # 237083
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| Date: | Wednesday 17 June 2020 |
| Time: | 17:00 LT |
| Type: |  Air Tractor AT-402 |
| Owner/operator: | Farm Brothers Flyers A LLC |
| Registration: | N1532H |
| MSN: | 402-0852 |
| Year of manufacture: | 2019 |
| Engine model: | Pratt & Whitney Canada PT6A-28 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Jefferson County, AR -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Pine Bluff-Grider Field, AR (PBF/KPBF) |
| Pine Bluff-Grider Field, AR (PBF/KPBF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, during an aerial application flight, a partial loss of engine power occurred while he was performing the first climbing turn to reverse course. The airplane subsequently descended and impacted terrain in a near-vertical attitude.
Postaccident examination of the engine and its components revealed no preimpact anomalies.
The reason for the partial loss of engine power could not be determined with the available evidence for this accident investigation.
Given the airplane’s near-vertical descent, it is likely that the pilot exceeded the airplane’s critical angle of attack during the climbing turn, which resulted in an aerodynamic stall and a loss of airplane control from which the pilot was unable to recover.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot’s exceedance of the airplane’s critical angle of attack, which led to an aerodynamic stall and a loss of airplane control. Contributing was a partial loss of engine power for undetermined reasons
Accident investigation:
 |
|
Sources:
NTSB CEN20LA234
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=1532H
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Jun-2020 01:51 | Geno | Added |
| 03-Mar-2021 10:37 | harro | Updated [Departure airport, Destination airport, Source, Narrative, Category] |
| 07-May-2021 19:33 | rudy | Updated [Departure airport, Destination airport, Category] |
| 28-Jul-2023 19:31 | ASN Update Bot | Updated [[Departure airport, Destination airport, Category]] |
Corrections or additions? ... Edit this accident description
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