The Pilatus PC-12/47E is the subject of a new FAA Airworthiness Directive that describes the unsafe condition as common grounding of both the pilot primary flight display (PFD) and the electronic standby instrument system (ESIS). If the common ground fails, both navigation systems could fail simultaneously, which could result in loss of control. If not corrected it could lead to failure of the PFD and ESIS common ground, resulting in the loss of more than one pilot flight information display and inhibition of flight parameter presentation, possibly resulting in reduced ability to control the aircraft.
Pilatus PC-12/47E Focus of Primary Flight Display AD
- October 16, 2013, 12:20 PM