Safety Advisory Notice
To operators of single-engine PT6A powered aircraft
Increased awareness and training for pilots in uncommanded engine acceleration events involving PT6A engines will improve outcomes for such malfunctions.
What happened
On 8 January 2024, a Cessna 208B Grand Caravan, departed Lizard Island Airport, Queensland on a flight to Cairns with the pilot and 9 passengers on board. During the climb, the pilot observed the aircraft’s speed and thrust increase uncommanded, and some engine parameters were exceeded or were not indicating. The pilot…