Piper PA18 N2510H accident near Brandon, Minnesota

Probable cause

The partial loss of engine power during takeoff due to carburetor icing.

NTSB analysis

The pilot landed to the south, taxied to the end of the runway, and took off to the north from his private grass airstrip. During the takeoff, the engine lost then regained power shortly after the airplane became airborne. The pilot elected to continue the takeoff due to the remaining runway available. While maneuvering toward an open field and away from obstacles, the airplane struck a 4-foot-high steel fence post. The airplane spun, traveled about 150 feet and came to rest. A postimpact fire ensued as both occupants exited with minor injuries.

Flight control continuity was confirmed to all flight control surfaces. Due to the severe postimpact fire, engine drive continuity could not be confirmed, but engine control continuity was confirmed. Weather conditions at the time of the accident were conducive to serious carburetor icing at glide power. Since the pilot had taxied at a low power setting prior to taking off and reported that the airplane lost then regained engine power, the momentary loss of engine power was most likely due to carburetor icing.

Text from the NTSB. Open the NTSB docket for CEN20LA343 for the full record.