Is AD 2001-11-02 a recurring Airworthiness Directive?

No — AD 2001-11-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2001-11-02 apply to?

AD 2001-11-02 applies to Pilatus Aircraft Ltd.. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2001-11-02

one-time

Official AD 2001-11-02 · FR doc 01-13580 · 2001-06-06 · airframe

Airworthiness Directives; Pilatus Aircraft LTD Models PC-12 and PC-12/45 Airplanes

What this AD requires

This amendment supersedes Airworthiness Directive (AD) 99-17- 08, which currently requires modifying the generator 2 excitation by removing certain diodes and installing a new 5-amp circuit breaker and suppression filter on certain Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45 airplanes. This AD is the result of the Federal Aviation Administration's determination that the A250 voltage spike suppression filter in the modification kit can cause the circuit breaker 235 to trip because of overload. In extreme circumstances, this can lead to overheating of wiring. This AD requires you to modify the generator 2 excitation by removing certain diodes and installing a new 5-amp circuit breaker and suppression filter of improved design in accordance with revised procedures. 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 damage to electrical components if generator 2 is not switched off before engine shutdown and it overheats. This could result in loss of electrical power to certain critical airplane components.

Which aircraft AD 2001-11-02 applies to

MakesPilatus Aircraft Ltd.

Applies to specific airplane(s) identified in AD paragraph (a); model/serial detail is not present in the extracted applicability text. Compliance required per Pilatus Service Bulletin No. 24-012, dated February 19, 1999, and Pilatus Service Bulletin No. 24-014, dated October 27, 1999.

Whether AD 2001-11-02 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2001-11-02 complied with on your aircraft?

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.