Incident Overview
During a commercial air taxi cargo flight, the right landing gear emitted a loud noise during retraction, and the 'unlocked' light remained illuminated. The pilot flew by a control tower at Holloman Air Force Base for a visual inspection. Tower personnel confirmed that the gear did not appear to be locked down.
Landing and Collapse
During the landing roll, the right main landing gear folded, causing the aircraft to swerve to the right and come to rest off the right side of the runway.
Investigation Findings
A postaccident investigation revealed that the torque tube bracket assembly had failed, which resulted in a malfunction of the gear down lock assembly.