Incident Overview
On May 2, 2018, at approximately 08:45 local time, a pilot holding a PPL(A) license planned to conduct a training flight in a Tecnam P2008 JC aircraft at Rzeszów Airport (EPRZ). The exercise was III 20 according to the training syllabus. After completing pre-start checks and obtaining clearance, the pilot started the engine, taxied, and positioned the aircraft on the runway. With takeoff clearance from Rzeszów Tower, the pilot began the takeoff roll. During the roll, the engine began to misfire. The pilot immediately aborted the takeoff and taxied the aircraft back to the hangar. The pilot was the sole occupant and was uninjured.
Investigation Findings
Maintenance personnel performed an adjustment of the fuel level in the left carburetor chamber, followed by an engine run-up that confirmed normal engine operation. Entries were made in the aircraft's technical log. The pilot's documentation showed no irregularities. Weather conditions were not a factor in the event.
Probable Cause
The investigation determined that the incident was caused by a too high fuel level in the left carburetor chamber, probably resulting from sticking of the intake valve.