Safety Advisory Notice
Loss of drive to the main rotor system
What happened
On 14 February 2022, the pilot of a Garlick Helicopters UH-1H was providing aerial firefighting support to combat the ‘Labrina’ bushfire that had developed north of Launceston, Tasmania. That afternoon, the pilot was tasked to firebomb a localised hot-spot that had developed within the fireground. Witnesses both on the ground, and within a nearby helicopter, observed the early release of the water load from the underslung bucket, before the UH-1H commenced a left turn and descended toward nearby open…