Probable cause
The pilot's exceedance of the airplane's critical angle of attack during a low-altitude turn, which resulted in an aerodynamic stall.
NTSB analysis
The pilot reported that, during an agricultural application flight, he stalled the airplane while in a low-altitude turn. In an attempt to recover, the pilot dumped the chemicals, but the airplane continued to descend and impacted a hillside. The airplane sustained substantial damage to the fuselage and engine mounts. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA19CA437 for the full record.
Event
- Date
- Jul 15, 2019
- Type
- Accident
- Place
- Bancroft, Idaho
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Piper PA36
- N-number
- N57799
- Category
- Airplane
- Year built
- 1976
- Damage
- Substantial
- Operating rule
- Part 137 (agricultural)
- Purpose of flight
- Aerial application
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.