NTSB Identification: WPR09CA421
14 CFR Part 91: General Aviation
Accident occurred Thursday, August 27, 2009 in Hamilton, MT
Probable Cause Approval Date: 10/19/2009
Aircraft: MEYER ROBERT AIR CAM, registration: N950TC
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

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.

Full narrative available

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