Is AD 2011-05-04 a recurring Airworthiness Directive?

No — AD 2011-05-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-05-04 apply to?

AD 2011-05-04 applies to Boeing — models 757-200, 757-200CB, 757-200PF, 757-300, 757. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-05-04

one-time

Official AD 2011-05-04 · FR doc 2011-4013 · 2011-02-24 · airframe

Airworthiness Directives; The Boeing Company Model 757 Airplanes

What this AD requires

We are superseding an existing airworthiness directive (AD) for the products listed above. That AD currently requires sealing the fasteners on the front and rear spars inside the left and right main fuel tanks and on the rear spar and lower panel of the center fuel tank. That AD also requires inspections of the wire bundle support installations to verify if certain clamps are installed and if Teflon sleeving covers the wire bundles inside the left and right equipment cooling system bays, on the left and right rear spars, and on the left and right front spars; and corrective actions if necessary. This new AD also requires sealing the additional fasteners on the rear spar inside the left and right main fuel tanks. This AD was prompted by a fuel system review conducted by the manufacturer. We have received reports from the manufacturer that additional fasteners in the main fuel tanks must be sealed for lightning strike protection. We are issuing this AD to detect and correct improper wire bundle support installation and sleeving and to prevent improperly sealed fasteners in the main and center fuel tanks from becoming an ignition source, in the event of a fault current or lightning strike, which could result in a fuel tank explosion and consequent loss of the airplane.

Which aircraft AD 2011-05-04 applies to

MakesBoeing

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

Whether AD 2011-05-04 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 2011-05-04 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.