Is AD 2017-20-05 a recurring Airworthiness Directive?

Yes — AD 2017-20-05 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2017-20-05 apply to?

AD 2017-20-05 applies to Boeing — models 757-200, 757-300, 757. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-20-05

recurring

Official AD 2017-20-05 · FR doc 2017-20689 · 2017-10-02 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2011-01-15, which applied to certain The Boeing Company Model 757-200, -200CB, and -300 series airplanes. AD 2011-01-15 required repetitive inspections for cracking of the fuselage skin of the crown skin panel along the chem-milled step at certain stringers, and repair if necessary. This AD adds repetitive inspections for cracking in additional areas, and repair if necessary; removes airplanes from the applicability; adds an optional skin panel replacement, which terminates all inspections; adds an optional preventive modification, which terminates certain inspections; and reduces the compliance time for certain inspections. This AD was prompted by reports of the initiation of new fatigue cracking in the fuselage skin of the crown skin panel along locally thinned channels adjacent to the chem-milled steps. We are issuing this AD to address the unsafe condition on these products.

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 2017-20-05 applies to

MakesBoeing

Models757-200, 757-300, 757

Airplanes as identified in Boeing Special Attention Service Bulletin 757-53-0097, Revision 3, dated December 2, 2016. Installation of STC ST01518SE does not affect applicability of this AD.

Whether AD 2017-20-05 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 2017-20-05 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.