Is AD 2014-08-11 a recurring Airworthiness Directive?

Yes — AD 2014-08-11 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2014-08-11 apply to?

AD 2014-08-11 applies to The Boeing Company — models 737-600, 737-700, 737-700C, 737-800, 737-900, 737. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-08-11

recurring

Official AD 2014-08-11 · FR doc 2014-09309 · 2014-04-29 · airframe

Airworthiness Directives; the Boeing Company Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2009-24-07 for certain the Boeing Company Model 737-600, -700, -700C, and -800 series airplanes. AD 2009-24-07 required repetitive lubrications of the right and left main landing gear (MLG) forward trunnion pins. AD 2009-24-07 also required an inspection for discrepancies of the transition radius of the MLG forward trunnion pins, and corrective actions if necessary. For certain airplanes, AD 2009-24-07 required repetitive detailed inspections for discrepancies (including finish damage, corrosion, pitting, and base metal scratches) of the transition radius of the left and right MLG trunnion pins, and corrective action if necessary. Replacing or overhauling the trunnion pins terminates the actions required by AD 2009-24-07. This new AD adds airplanes to the applicability of AD 2009-24-07. This AD was prompted by reports of corrosion protection damage to the forward trunnion pin on additional airplanes. We are issuing this AD to prevent stress corrosion cracking of the forward trunnion pins, which could result in fracture of the pins and consequent collapse of the MLG.

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 2014-08-11 applies to

MakesThe Boeing Company

Models737-600, 737-700, 737-700C, 737-800, 737-900, 737

Airplanes as identified in Boeing Special Attention Service Bulletin 737-32-1402, Revision 1, dated February 7, 2013. Installation of STC ST00830SE does not affect applicability of the required actions.

Whether AD 2014-08-11 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 2014-08-11 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.