Is AD 04-27320 a recurring Airworthiness Directive?

No — AD 04-27320 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-27320 apply to?

AD 04-27320 applies to Pilatus — models PC-7. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-27320

one-time

AD 04-27320 · 2004-12-14 · airframe

Airworthiness Directives; Pilatus Aircraft Ltd. Model PC-7 Airplanes

What this AD requires

This document makes a correction to Airworthiness Directive (AD) 2004-23-01, which was published in the Federal Register on November 9, 2004 (69 FR 64832), and applies to certain Pilatus Aircraft Ltd. (Pilatus) Model PC-7 airplanes with any Lear Romec RR53710B type or Lear Romec RR53710K fuel booster pump (Pilatus part number 968.84.11.401; 968.84.11.403; or 968.84.11.404) installed. We incorrectly referenced the amendment number as Amendment 39-13856. The correct amendment number is Amendment 39-13892. This action corrects the regulatory text.

Which aircraft AD 04-27320 applies to

MakesPilatus

ModelsPC-7

Part-conditional — 968.

certain

Whether AD 04-27320 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 04-27320 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.