Accident Details
During the landing roll, the right main landing gear of a twin-engine airplane collapsed. The pilot reported that during takeoff, as the airplane lifted off the ground, he heard a 'bump.' Then, as the landing gear retracted, just before reaching the up and locked position, he heard a 'loud bang.' The pilot continued to the intended destination. Upon arrival, when the landing gear was lowered, the right main landing gear green light did not illuminate. The pilot raised the landing gear and heard another 'loud bang.' He then elected to return to the departure airport. During the return, the pilot performed flybys at an en route airport and at the destination airport to confirm a problem with the right main landing gear. The pilot initiated a slow approach to runway 36, and when landing was assured, shut down both engines. The airplane touched down, and during the landing roll, the right main landing gear collapsed.
Examination Findings
An examination of the right main landing gear by an A&P mechanic with an FAA Inspection Authorization (IA) revealed that the 'gear torque tube support bracket/pivot bearing broke allowing the gear down lock tube to break by overtorquing.'