Incident Details
On June 16, 2015, at 18:45 local time, a Cessna 150 crewed by a student pilot and an instructor was conducting a training flight along the route EPWS – EPWR – EPMR – EPWS. After the first landing at EPWR (Wrocław Airport), the aircraft taxied via taxiways C, B, and A to parking area 1. During several minutes of taxiing performed by the student, serious difficulties in maintaining directional control occurred. The aircraft tended to turn to the left, and after some time taxiing straight became impossible. Taxiing was discontinued, and the aircraft was pushed off taxiway B to a safe distance. A mechanic arrived, repaired the brakes, and the aircraft subsequently returned to the airport at Szymanowo.
Cause
The cause of the incident was overheating of the left main wheel brake assembly, resulting from prolonged taxiing in high ambient temperature conditions combined with the student pilot's unskillful use of the brakes.
Comments
In the opinion of the investigation commission, instructors conducting training flights with student pilots in high ambient temperatures and when taxiing long distances on airport taxiways should pay particular attention to the students' skillful operation of the brakes.