Flight Crew Private
Flight Crew Last 90 Days 6; Flight Crew Total 1007; Flight Crew Type 357
Situational Awareness; Distraction; Workload
Aircraft Equipment Problem Critical
Flight Crew Landed in Emergency Condition; General Maintenance Action
Procedure; Human Factors; Aircraft
I was performing a test flight after recent maintenance. While circling [the airport] at approximately 2500 feet MSL; the engine ran rough for a brief second. I immediately throttled back and upon realizing that the engine was not developing power; turned off the mag switch. I was on an extended left downwind for runway XY at approximately 1800 feet AGL at this time. I turned off the fuel and preformed a successful on-field landing. Upon examining the aircraft discovered the propeller was missing and no further damage to the aircraft.
The pilot of a small airplane lost engine power in the pattern during a post maintenance test flight. He secured the engine and landed successfully.