Accident Overview
The airplane was substantially damaged when the landing gear collapsed during the landing roll on an unspecified runway. The pilot was uninjured. After the accident, a mechanic examined the gear and reported that when the right wing was lifted, the gear fell down and locked. Jacking the left wing engaged the lock, but the left gear was down and not locked. The nose gear would not fall due to bent gear doors; the mechanic used the hydraulic pump to push it down, and it locked.
Inspection Findings
FAA inspectors observed that the airplane landed long and touched down on the left side of the runway centerline. Photographs indicated that immediately after touchdown, the aircraft began a hard right turn. Skid marks showed that shortly before the aircraft exited the runway, the right main landing gear started to fold upward. The aircraft came to rest on the east side of the runway with the nose and right main landing gear retracted. One runway light was broken after being struck by the left wing.
Pilot Report
The pilot stated that during the base-to-final turn, a pre-landing checklist confirmed the landing gear indicator showed three green lights. The initial touchdown seemed normal, but shortly thereafter, the pilot noticed the right side of the aircraft descending as though the right gear was collapsing and the right wing descending toward the pavement.