Flight Crew Commercial; Flight Crew Flight Instructor
Aircraft Equipment Problem Less Severe
Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft
Applied full power for takeoff on [Runway] X; engine static RPM went to 2250 but then dropped 300 rpm and went back up. Engine abnormality. Crew made decision to abort takeoff and exit [Taxiway] X1 on taxiway 2. Wrote up the aircraft.Monitor engine instrument during all critical phases of flight.
PA-28 flight Instructor reported that after full power was applied for takeoff; the engine RPM dropped resulting in a rejected takeoff.