Incident Overview
A company chief pilot, acting as a check pilot, was conducting a proficiency check flight for a company first officer. An FAA inspector was on board to evaluate the check pilot's ability to administer such checks. During the second takeoff of the session, shortly after liftoff, the check pilot simulated an engine failure. The first officer, who was wearing a vision-limiting device, initially allowed the airplane to drift left but successfully regained directional control, as noted by the FAA inspector.
Sequence of Events
The FAA inspector then looked away from the cockpit. When he returned his gaze, the airplane was descending. Moments later, the aircraft collided with the ground. The inspector reported that the check pilot was looking to the left, outside the aircraft, and did not have his hand near the power quadrant.
Cockpit Voice Recorder Analysis
Review of the cockpit voice recorder (CVR) revealed that from the time the simulated left engine failure was introduced until impact, the check pilot did not say anything to the first officer.
Investigation Findings
No maintenance discrepancies or material deficiencies were identified during the investigation. The first officer had accumulated 3,925 hours in the same make and model of aircraft.
Probable Cause
The official probable cause was determined to be the first officer's failure to maintain an adequate rate of climb after a simulated single-engine loss of power, and the company check pilot's inadequate supervision and failure to note the descent. Darkness was a related factor.