Incident Overview
A commercial pilot receiving instruction departed an airport to the west to practice upper air work. Upon return, the pilot entered the traffic pattern for landing. The flight instructor reported that the approach appeared normal, and the twin-engine airplane touched down on the centerline.
Sequence of Events
After the main landing gear contacted the runway, the airplane began to veer approximately 20 degrees to the left. The instructor took control and applied full right rudder, but this had no effect. The instructor then applied full throttle. As the left main landing gear exited the runway, the airplane became airborne again. It subsequently struck two runway signs before the instructor reduced the throttles to idle and moved the mixture controls to the cut-off position.
The airplane touched down in the grassy area between the runway and a parallel taxiway, causing the landing gear to collapse. The airplane slid about 400 yards and came to rest upright on the parallel taxiway.
Examination Findings
Examination of the runway revealed a single skid mark that veered left to the point where the airplane exited the runway.
Summary
No injuries were reported in the source. The aircraft, a twin-engine airplane, sustained substantial damage due to the gear collapse and subsequent slide.