Incident Overview
An aircraft that previously sustained substantial damage in an accident was rebuilt and returned to service. Following its return, the aircraft accumulated approximately 24 hours of operation, during which takeoffs and landings were conducted on a snow-covered runway.
Event Sequence
On the first flight after the period of snow-covered runway operations, the pilot performed a landing on a dry runway. On touchdown, the pilot observed that the aircraft veered to the right. He initiated a go-around. On the second landing attempt, the same veering occurred, and the pilot again went around. During the third landing at dusk, the pilot elected to make a full stop. After touchdown, the aircraft veered to the right and collided with a snowbank.
Investigation Findings
Investigators were unable to determine the exact cause of the aircraft's tendency to swerve during landing. However, the investigation did reveal that a jig had not been used during the rebuilding of the aircraft following the previous accident.