What happened
During the landing flare of a twin-engine airplane, the commercial pilot heard the landing gear warning horn. In response, the pilot added engine power to initiate a go-around procedure while simultaneously extending the landing gear. During this maneuver, the aircraft's propellers struck the runway surface. The aircraft then skidded approximately 650 feet along the runway before coming to a complete stop. The pilot was not injured and exited the aircraft through the left cabin door.
The investigation
Post-accident examination of the aircraft revealed that the throttles were in the full forward position and the landing gear selector handle was set to the down position. Investigators found that the inboard main gear doors were in the retracted position, which indicated that the gear sequencing process had not yet started at the time the airplane touched down on the runway.
Findings
An investigation into operational procedures noted that company policy required the pilot to extend the landing gear prior to descending below 1,000 feet above ground level during an approach.