What happened
On December 10, 2015, a Zlin-143 aircraft, operated for training purposes, was conducting a flight from EPBC to EPDE. The crew, consisting of an instructor and a student pilot, had planned a route passing through the "Zulu" and "Mike" navigational points before proceeding to the "SIE" VOR.
During the flight, the Olsztyn Flight Information Service (FIS) notified the crew that the military airport traffic zone (MATZ) for EPMM was active and instructed them to avoid the area. Although the crew acknowledged this instruction, the aircraft subsequently entered the active MATZ EPMM airspace.
The investigation
The investigation, conducted by the operator, examined the flight path and the communication between the crew and air traffic services. The inquiry focused on why the crew failed to adhere to the instructions provided by FIS Olsztyn regarding the avoidance of the military controlled airspace.