NTSB Identification: ANC06LA105.
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Accident occurred Monday, July 31, 2006 in Anchorage, AK
Probable Cause Approval Date: 05/29/2007
Aircraft: American Champion (ACAC) 8GCBC, registration: N35RF
Injuries: 1 Serious,1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The commercial certificated flight instructor was giving primary flight instruction under Title 14, CFR Part 91 when the accident occurred. According to the student pilot, they were doing traffic pattern work at a gravel airstrip, when during initial climb from the runway, the instructor "pulled the engine" to simulate a loss of engine power emergency. The runway they were using required a departure over a saltwater inlet, and the only recourse was to execute a 180 degree turn toward the runway they had just departed. The student estimated they were 300-500 feet above the water when he initiated a standard rate turn. He said the instructor told him the turn was not steep enough, but because of the low altitude, the student did not feel comfortable increasing the angle of bank. The student said the instructor took control of the airplane, and dramatically increased the angle of bank. He said the airplane stalled, and dove toward the ground, with the instructor leveling the wings just as the airplane collided with trees adjacent to the runway. The student said the airplane's wings and fuselage received structural damage.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The flight instructor's failure to maintain sufficient airspeed to avoid a stall during a turn to reverse direction, which resulted in an inadvertent stall and a loss of control. Factors associated with the accident are the inadvertent stall, and the flight instructor's improper in-flight planning/decision to simulate a low altitude loss of engine power over water.

Full narrative available

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