Airworthiness Directive 2000-26-17
one-timeAirworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes
What this AD requires
This amendment adopts a new airworthiness directive (AD) that applies to Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45 airplanes that are equipped with a certain windshield configuration. This AD requires you to incorporate pilot's operating handbook (POH) information that prohibits the operation of the windshield heating system in the "LIGHT" mode, and requires you to modify the windshield deicing system wiring and circuit breakers. You can remove the POH information after accomplishing the modification. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. The actions specified by this AD are intended to prevent loss of electrical power to the windshield deicing system due to operation in the "LIGHT" mode, which could result in icing of the windshield and loss of control of the airplane.
Which aircraft AD 2000-26-17 applies to
Applies only to airplanes, MSN 101 through 320, certificated in any category, that are equipped with P/N 959.81.10.107 LH and P/N 959.81.10.108 RH windshields (PPG P/N NP172121-5 LH and NP172121-6 RH or FAA-approved equivalent part numbers).
Whether AD 2000-26-17 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.