Airworthiness Directive · Amendment 39-17592 · Navigation
PILATUS AIRCRAFT LTD. Airplanes
This AD applies to PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes, serial numbers 545 and 1001 through 1450, certificated in any category.
We are adopting a new airworthiness directive (AD) for PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI 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 navigations systems could fail simultaneously, which could result in loss of control. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, within 3 months after October 30, 2013 (the effective date of this AD), modify the ESIS return wire ground connections following the accomplishment instructions in PILATUS AIRCRAFT LTD. PC-12 Service Bulletin No. 34-038, dated March 26, 2013.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
