Accident Summary
On the eighth flight of the day providing skydiving services, a twin-engine turbine-powered airplane experienced a runway excursion during landing at an unspecified airport. The pilot reported that a prospective new hire pilot was occupying the right seat and flying the approach. During the landing flare, at approximately 15 feet above ground level and 200 feet south of the runway 15 threshold, the airplane suddenly dropped. The pilot believed wind shear caused the aircraft to slam onto the runway and bounce into the air with a right bank of 45 to 60 degrees.
Sequence of Events
Following the bounce, the prospective pilot stated, "you got it," and the pilot assumed control. The pilot initiated a go-around by increasing power, which exacerbated the deviation from the runway heading. The right wing then contacted the ground, causing the airplane to exit the runway to the right and collide with a fuel truck. The impact separated the right wing from the airplane. The collision also caused the pilot to unintentionally add maximum power. The airplane, with only the left engine operating, subsequently ground looped to the right and came to rest in a nose-down attitude.
Probable Cause
The official probable cause was determined to be the prospective pilot's improper landing flare and the pilot's delayed remedial action to initiate a go-around, which resulted in a runway excursion.