Probable cause
The separation of the right main landing gear wheel due to the flight's encounter with soft terrain while landing on an unimproved river sandbar. Contributing to the accident was the pilot's decision to attempt a landing on an unimproved off-airport surface.
NTSB analysis
The pilot performed three off-airport takeoffs and landings on a river sandbar. During his last landing, a main landing gear wheel separated from his amateur-built twin-engine airplane when an attachment weld sheared. Witnesses were located on a river raft and saw that the airplane appeared to touchdown on a sand/gravel bar that was within 75 yards of their location. During this event, one of the airplane's wheels separated and initially traveled toward them, but then veered away and entered the river. Thereafter, the pilot added power and performed a go-around. When the pilot subsequently landed back at the departure airport, he was unable to maintain directional control of his airplane. The airplane impacted objects, and the right side of the fuselage buckled.
Text from the NTSB. Open the NTSB docket for WPR09CA421 for the full record.
Event
- Date
- Aug 28, 2009
- Type
- Accident
- Place
- Hamilton, Montana
- Nearest airport
- Ravalli County (6S5)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Amateur-built AIR CAM
- N-number
- N950TC
- Category
- Airplane
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
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.