Safety
EASA Proposes AD on Pilatus PC-12
Proposed AD looks specifically at the potential for the aileron trim tab to disconnect above 10,000 feet.

The European Aviation Safety Agency on March 9 proposed Airworthiness Directive 15-024 for the Pilatus PC-12 addressing a potentially unsafe condition that could result from a disconnected aileron trim tab occurring above 10,000 feet. The AD states that a failure to correct the problem “could lead, in case of a disconnection of an aileron trim tab, to undamped airplane vibrations, potentially resulting in structural failure.”