Is AD 2013-07-09 a recurring Airworthiness Directive?

No — AD 2013-07-09 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-07-09 apply to?

AD 2013-07-09 applies to Boeing — models 737-700, 737-700C, 737-800, 737-900ER, 747-400F, 767-200, 767-300, 737. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-07-09

one-time

Official AD 2013-07-09 · FR doc 2013-08192 · 2013-04-15 · 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 737-700, -700C, -800, and -900ER series airplanes, Model 747-400F series airplanes, and Model 767-200 and -300 series airplanes. This AD was prompted by reports indicating that certain crew oxygen mask stowage box units were possibly delivered with a burr in the inlet fitting. The burr might break loose during test or operation, and might pose an ignition source or cause an inlet valve to jam. This final rule adds a step to identify and label certain crew oxygen mask stowage box units that have already been inspected and reworked by the supplier, and allows operators to install new or serviceable crew oxygen mask stowage box units, and requires a general visual inspection for affected serial numbers of the crew oxygen mask stowage box units, and replacement or re-identification as necessary. We are issuing this AD to prevent an ignition source, which could result in an oxygen-fed fire; or an inlet valve jam in a crew oxygen mask stowage box unit, which could result in restricted flow of oxygen.

Which aircraft AD 2013-07-09 applies to

MakesBoeing

Models737-700, 737-700C, 737-800, 737-900ER, 747-400F, 767-200, 767-300, 737, 747, 767

737-700/-700C/-800/-900ER as identified in Boeing Alert Service Bulletin 737-35A1121, Revision 1, dated November 7, 2011; 747-400F as identified in Boeing Alert Service Bulletin 747-35A2126, Revision 1, dated September 29, 2011; 767-200/-300 as identified in Boeing Alert Service Bulletin 767-35A0057, Revision 1, dated November 17, 2011.

Whether AD 2013-07-09 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 2013-07-09 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.