Probable cause
The pilot’s improper decision to perform a low altitude fly-by over ground equipment, which resulted in the airplane striking the equipment.
NTSB analysis
The pilot reported that he was maneuvering to perform an agricultural application. He noticed a ground application operator was located inside of the cab of the ground application equipment. The pilot decided to perform a "close fly-by" over the ground equipment. The left main landing gear struck the ground equipment cab, and the pilot chose to return to the airport. He landed on the gravel taxiway that paralleled the runway. The airplane sustained substantial damage to the left main landing gear attachment points.
Per the National Transportation Safety Board Pilot Aircraft Accident Report, the pilot reported that the accident could have been prevented if "the pilot [had] used better judgement and not done a close fly-by the ground application equipment," which was also owned by the operator.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA17CA321 for the full record.
Event
- Date
- Jun 5, 2017
- Type
- Accident
- Place
- Tulelake, California
- Nearest airport
- Tulelake Muni (O81)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Ag-Cat Corporation G 164
- N-number
- N80083
- Category
- Airplane
- Year built
- 1998
- 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.