What happened
A certificated airline transport pilot was operating a flight with one passenger, departing for an airport located approximately 5 miles away. During the initial takeoff run, the engine experienced a surge. In response, the pilot aborted the takeoff and returned to the departure point of the runway.
After performing an engine power check that appeared satisfactory, the pilot proceeded with a second takeoff attempt. During this second climb, the aircraft reached an altitude of approximately 300 feet MSL when the engine RPM suddenly dropped to idle. The pilot attempted emergency procedures, but they failed to restore engine power. The airplane subsequently collided with trees during an off-airport landing. The impact caused damage to both wing fuel tanks, and the aircraft came to rest in an inverted position. The pilot and passenger were not injured.
The investigation
An FAA airworthiness inspector examined the aircraft following its retrieval. The investigation revealed approximately 1/2 cup of water within the fuel system. Additionally, one wing sump drain was found to be partially blocked by silt. Testing demonstrated that with the use of clean fuel, the engine could be started and run at idle; the engine later produced full power when tested on an engine test stand.
Findings
The investigation determined that the pilot did not recheck the fuel system for contamination following the initial engine surge and aborted takeoff.