Piper PA28 N499TG accident near Laurel, Mississippi

Probable cause

A total loss of engine power due to a stuck carburetor float. The reason the carburetor float became stuck could not be determined because postaccident examination of the float and needle/seat revealed no anomalies.

NTSB analysis

The student pilot departed with full fuel tanks and flew to a nearby airport to practice takeoffs and landings. In preparation for his first landing, he checked that the mixture was full-rich and that the electric fuel pump and carburetor heat were turned on. The student pilot reduced power and extended the flaps; however, he realized that the airplane was too high and chose to go around. The student pilot applied full power, retracted the flaps, and turned off the carburetor heat. At that point, the engine started running roughly and experienced a total loss of power. The student pilot turned the carburetor heat back on, rechecked that the electric fuel pump was still on, and switched fuel tanks, but engine power was not restored. The student pilot made a forced landing to a field adjacent to the airport.

Examination of the airplane revealed the carburetor had flooded and was leaking due to a stuck float, which prevented engine operation. The carburetor was removed and disassembled. No anomalies were noted with the float or needle/seat, and the carburetor was reassembled and reinstalled on the engine. The engine was subsequently started, and it ran with no anomalies noted. The reason for the stuck carburetor float could not be determined.

Text from the NTSB. Open the NTSB docket for ERA17LA005 for the full record.