Is AD 2009-06-20 a recurring Airworthiness Directive?

No — AD 2009-06-20 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2009-06-20 apply to?

AD 2009-06-20 applies to Boeing — models 757-200, 757-200PF, 757-300, 757. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2009-06-20

one-time

Official AD 2009-06-20 · FR doc E9-5962 · 2009-03-24 · airframe

Airworthiness Directives; Boeing Model 757-200, 757-200PF, and 757-300 Series Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Boeing Model 757-200, 757-200PF, and 757-300 series airplanes. This AD requires, for certain airplanes, measuring the electrical bond resistance at certain stations and doing any applicable repair; installing support brackets for the hot short protector and new support clamps for the wire bundles; installing the equipment of the hot short protector; and modifying an existing wire bundle and installing a new wire bundle. This AD also requires, for certain other airplanes, measuring the electrical bond resistance at certain stations, measuring the electrical bonding resistance between the hot short protector and rear spar web, and doing any applicable repair. This AD also requires revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent the center fuel tank densitometer from overheating and becoming a potential ignition source inside the fuel tank, which, in combination with flammable fuel vapors, could result in a center fuel tank explosion and consequent loss of the airplane.

Which aircraft AD 2009-06-20 applies to

MakesBoeing

Models757-200, 757-200PF, 757-300, 757

Applies to airplanes identified in Boeing Alert Service Bulletin 757-28A0085, Revision 2, dated December 11, 2007.

Whether AD 2009-06-20 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 2009-06-20 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.