Flight Purpose
The flight was conducted for a pilot evaluation. The second pilot was assessing the first pilot, who had recently been designated as a backup pilot by the operator.
Sequence of Events
After several successful flights with and without passengers, the pilots discussed single-engine operations. The first pilot reduced the right engine's power to flight idle and feathered the propeller.
During the final leg of the approach to landing, the airplane crossed over a fence near the runway threshold. The first pilot pitched the airplane downward. The nose landing gear contacted the runway "hard," and the airplane began to bounce.
After several bounces, the first pilot elected to abort the landing and increased power on the left engine to "full." As the first pilot pitched the airplane upward, it yawed to the right, "stalled," and impacted the ground.
Probable Cause
The pilot's improper flare and recovery from a bounced landing, which resulted in a stall and subsequent impact with the ground.