Is AD 2015-12-04 a recurring Airworthiness Directive?

Yes — AD 2015-12-04 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2015-12-04

Q: Which aircraft does AD 2015-12-04 apply to?

AD 2015-12-04 applies to Honeywell International — models TPE331-1, TPE331-2, TPE331-2UA, TPE331-3U, TPE331-3UW, TPE331-5, TPE331-5A, TPE331-5AB. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2015-12-04 · FR doc 2015-14694 · 2015-06-17 · turboprop engine

Airworthiness Directives; Honeywell International Inc. Turboprop Engines

What this AD requires

We are superseding airworthiness directive (AD) 2006-15-08 for all Honeywell International Inc. TPE331-1, -2, -2UA, -3U, -3UW, -5, - 5A, -5AB, -5B, -6, -6A, -10, -10AV, -10GP, -10GT, -10P, -10R, -10T, - 10U, -10UA, -10UF, -10UG, -10UGR, -10UR, -11U, -12JR, -12UA, -12UAR, and -12UHR turboprop engines with certain Honeywell part numbers (P/Ns) of Woodward fuel control unit (FCU) assemblies, installed. AD 2006-15- 08 required initial and repetitive dimensional inspections of the fuel control drives for wear, and replacement of the FCU and fuel pump. This new AD requires initial and repetitive dimensional inspections of the affected fuel control drives and insertion of certain airplane operating procedures into the applicable flight manuals. This AD was prompted by reports of loss of the fuel control drive, leading to engine overspeed, overtorque, overtemperature, uncontained rotor failure, and asymmetric thrust in multi-engine airplanes. We are issuing this AD to prevent failure of the fuel control drive that could result in damage to the engine and airplane.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2015-12-04 applies to

MakesHoneywell International

ModelsTPE331-1, TPE331-2, TPE331-2UA, TPE331-3U, TPE331-3UW, TPE331-5, TPE331-5A, TPE331-5AB, TPE331-5B, TPE331-6, TPE331-6A, TPE331-10, TPE331-10AV, TPE331-10GP, TPE331-10GT, TPE331-10P, TPE331-10R, TPE331-10T, TPE331-10U, TPE331-10UA, TPE331-10UF, TPE331-10UG, TPE331-10UGR, TPE331-10UR, TPE331-11U, TPE331-12JR, TPE331-12UA, TPE331-12UAR, TPE331-12UHR, TPE331

Part-conditional — 869199-13, 869199-20, 869199-21, 869199-22, 869199-23, 869199-24, 869199-25, 869199-26.

Applies only when a Woodward fuel control unit (FCU) assembly bearing one of the listed Honeywell part numbers is installed; specific FCU part-number groups correspond to specific TPE331 engine model groups per Table 1 in the AD.

Whether AD 2015-12-04 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 2015-12-04 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.