Is AD 2018-16-06 a recurring Airworthiness Directive?

No — AD 2018-16-06 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2018-16-06

Q: Which aircraft does AD 2018-16-06 apply to?

AD 2018-16-06 applies to The Boeing Company — models 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2018-16-06 · FR doc 2018-16509 · 2018-08-08 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-100, -100B, -100B SUD, -200B, -200C, - 200F, -300, -400, -400D, 747SP, and 747SR, and 747-8 series airplanes. This AD was prompted by reports indicating that additional areas of Boeing Material Specification (BMS) 8-39 flexible urethane foam were found during an inspection required by a related AD. This AD requires inspecting for BMS 8-39 flexible urethane foam insulation in the floor panel assemblies and the power drive unit (PDU) cover assemblies, doing applicable on-condition actions, modifying certain dripshields, and replacing BMS 8-39 foam strips on certain dripshields with BMS 8-371 foam strips. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2018-16-06 applies to

MakesThe Boeing Company

Models747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747SP, 747SR, 747-8, 747

Applies to specific series identified in Boeing Special Attention Service Bulletin 747-53-2877, dated August 5, 2014 (Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, 747SP, 747SR); Boeing Special Attention Service Bulletin 747-25-3646, Revision 1, dated August 2, 2017 (Model 747-400, -400D, and 747-8); and Boeing Special Attention Service Bulletin 747-25-3692, dated June 22, 2016 (Model 747-100, -100B, -100B SUD, -200B, -300, 747SP, 747SR).

Whether AD 2018-16-06 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 2018-16-06 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.