Is AD 2017-12-09 a recurring Airworthiness Directive?

No — AD 2017-12-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2017-12-09

Q: Which aircraft does AD 2017-12-09 apply to?

AD 2017-12-09 applies to Embraer — models EMB-135ER, EMB-135KE, EMB-135KL, EMB-135LR, EMB-145, EMB-145ER, EMB-145MR, EMB-145LR. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2017-12-09 · FR doc 2017-12168 · 2017-06-15 · airframe

Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (Embraer) Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Empresa Brasileira de Aeronautica S.A. (Embraer) Model EMB-135 airplanes and Model EMB-145, -145ER, -145MR, -145LR, -145MP, -145EP, and -145XR airplanes. This AD was prompted by a report of chafing found between the fuel pump electrical harness and the fuel pump tubing during scheduled maintenance. This AD requires a detailed inspection for chafing on the electrical harness of each electrical fuel pump in the fuel tanks, replacement of the affected electrical fuel pump with a new or serviceable pump if necessary, and installation of clamps on the fuel pump electrical harnesses. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-12-09 applies to

MakesEmbraer

ModelsEMB-135ER, EMB-135KE, EMB-135KL, EMB-135LR, EMB-145, EMB-145ER, EMB-145MR, EMB-145LR, EMB-145MP, EMB-145EP, EMB-145XR, EMB-135BJ, EMB-135

EMB-135ER/-135KE/-135KL/-135LR and EMB-145/-145ER/-145MR/-145LR/-145MP/-145EP/-145XR airplanes as identified in Embraer Service Bulletin 145-28-0030, Revision 01, dated October 22, 2010; EMB-135BJ airplanes as identified in Embraer Service Bulletin 145LEG-28-0032, Revision 01, dated November 20, 2012.

Whether AD 2017-12-09 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 2017-12-09 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.