The report said that on receiving the mayday call, the airport’s fire and rescue division was placed on standby.
“The aircraft was at approximately 1,700 feet at the time when it was observed making a turn and lost height drastically to approximately 1,100 feet in a short period of time,” the report said.
The airport’s radar playback showed the aircraft gradually losing height.
“At the time the aircraft reached the accident site it had a height indication of approximately 300 feet.”
The aircraft crashed about 1.8km north of the airport.
The report said that CCTV footage from a house showed the last moments of the flight leading to the accident.
“It showed the aircraft turning in a steep bank to the right at high speed into the valley and crashing.”
Within minutes of the crash, another aircraft passed over the accident site and alerted the airport.