Is AD 2013-14-06 a recurring Airworthiness Directive?

No — AD 2013-14-06 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-14-06 apply to?

AD 2013-14-06 applies to Cfm International — models 5, 5B, CFM56. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-14-06

one-time

Official AD 2013-14-06 · FR doc 2013-17296 · 2013-07-30 · turbine engine

Airworthiness Directives; CFM International, S. A. Turbofan Engines

What this AD requires

We are adopting a new airworthiness directive (AD) for certain CFM International, S. A. (CFM) model CFM56-5 and CFM56-5B series turbofan engines. This AD was prompted by corrosion of the delta-P valve in the hydro-mechanical unit (HMU) fuel control caused by exposure to type TS-1 fuel. This AD requires cleaning, inspection, and repair of affected HMUs. We are issuing this AD to prevent seizure of the HMU, leading to failure of one or more engines and damage to the airplane.

Which aircraft AD 2013-14-06 applies to

MakesCfm International

Models5, 5B, CFM56

Part-conditional — 1348M79P02, 1348M79P03, 1348M79P04, 1348M79P06, 1348M79P07, 1348M79P08, 1348M79P09, 1348M79P10.

Applies to CFM56-5 engines with HMU fuel control P/Ns 1348M79P02, 1348M79P03, 1348M79P04, and 1348M79P06 through 1348M79P14, and to CFM56-5B engines with HMU fuel control P/Ns 1348M79P08 through 1348M79P14, installed.

Whether AD 2013-14-06 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 2013-14-06 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.