Incident Overview
On 29 April 2020, an ATR 72 aircraft, registered SP-SPA, was conducting a departure from Kaunas Airport (EYKA). During the takeoff roll, as the crew advanced the throttles, they observed that the torque (TORQUE) indication for the right engine failed to increase. In response, the flight crew decided to abort the takeoff.
Post-Event Actions
After the aircraft returned to the ramp, a mechanic performed troubleshooting. The mechanic reset a circuit breaker, cleaned the electrical connector of the TRQ (torque) sensor, and conducted a test of the torque indication system. The test showed normal torque readings, and the aircraft was subsequently cleared for flight.
Cause
The Polish State Commission on Aircraft Accident Investigation determined that the probable cause of the incident was contamination of the electrical connector contacts on the TRQ sensor.
Safety Recommendations
No additional safety recommendations were formulated by the Commission. However, the investigating entity recommended that flying and technical personnel be informed of the circumstances and course of the incident.