On April 3, 2002, a PZL-Mielec AN-2 (registration LZ-1113) operated by Bulair was involved in an aviation accident near Tervel, Bulgaria in flight. No fatalities were reported. Investigators recorded the probable cause as: Engine failure resulted from a malfunction of the fuel-feed system, most probably due to incorrect installation of the altitude regulator of the carburetor and incorrect actions by the pilot. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 4 related events involving the same aircraft type or operator are linked below.
A single-engine aircraft on a crop spraying mission in Tervel suffered an engine failure at low altitude, stalled, and crashed. The pilot was critically injured; two passengers were uninjured.
Accident
A single-engine aircraft operating a crop spraying mission crashed in a field near Tervel after the engine failed while flying at an altitude of approximately five metres. According to the investigation, the aircraft stalled following the engine failure and impacted the ground.
Casualties
Three individuals were on board the aircraft at the time of the accident. A passenger escaped uninjured, while a second passenger was unhurt. The pilot was evacuated in critical condition.
Probable Cause
The official investigation determined that the engine failure was caused by a malfunction of the fuel-feed system, most probably due to incorrect installation of the altitude regulator of the carburetor and incorrect actions by the pilot.