Is AD 2014-21-01 a recurring Airworthiness Directive?

Yes — AD 2014-21-01 requires a repetitive inspection every 4 months. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2014-21-01 apply to?

AD 2014-21-01 applies to General Electric Company — models CF6-80C2, CF6-80E1. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-21-01

recurring

Official AD 2014-21-01 · FR doc 2014-24697 · 2014-10-23 · turbine engine

Airworthiness Directives; General Electric Company Turbofan Engines

What this AD requires

We are superseding airworthiness directives (ADs) 90-26-01, 91-20-02, and 2009-05-02 for all General Electric Company (GE) CF6-80C2 and CF6-80E1 series turbofan engines. This AD retains the requirements of those ADs and requires removal of additional fuel manifold part numbers (P/Ns), additional repetitive inspections, replacement as required of certain fuel manifold P/Ns and tube (block) clamps, and replacement of loop clamps. This AD was prompted by a report of an under-cowl fire caused by a manifold high-pressure fuel leak, and several additional reports of fuel leaks. We are issuing this AD to prevent failure of the fuel manifold, which could lead to uncontrolled engine fire, engine damage, and damage to the airplane.

Repetitive inspection. Re-inspect every 4 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2014-21-01 applies to

MakesGeneral Electric Company

ModelsCF6-80C2, CF6-80E1

Part-conditional — 1303M31G04, 1303M32G04, 1303M31G06, 1303M32G06, 1303M31G07, 1303M32G07, 1303M31G08, 1303M32G08.

Applies only to CF6-80C2 and CF6-80E1 series engines with fuel manifold P/N 1303M31G04, 1303M32G04, 1303M31G06, 1303M32G06, 1303M31G07, 1303M32G07, 1303M31G08, 1303M32G08, 1303M31G12, 1303M32G12, 2420M70G01, or 2420M71G01 installed.

Whether AD 2014-21-01 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 2014-21-01 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.