Is AD 05-23904 a recurring Airworthiness Directive?

Yes — AD 05-23904 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 05-23904

Q: Which aircraft does AD 05-23904 apply to?

AD 05-23904 applies to Sabreliner — models NA-265-20, NA-265-30, NA-265-40, NA-265-50, NA-265-60, NA-265-65, NA-265-70, NA-265-80. Serial/part conditions may narrow it to specific aircraft.

recurring

AD 05-23904 · 2005-12-14 · airframe

Airworthiness Directives; Sabreliner Model NA-265, NA-265-20, NA-265-30, NA-265-40, NA-265-50, NA-265-60, NA-265-65, NA-265-70, and NA-265-80 Series Airplanes

What this AD requires

The FAA is superseding an existing airworthiness directive (AD), which applies to certain Sabreliner Model NA-265-40, NA-265-50, NA-265-60, NA-265-70, and NA-265-80 series airplanes. That AD currently requires repetitive inspections for discrepancies in the front and rear spars of the wing in the area of the wing center section, and in the lugs on the rear spar and wing trailing edge panel rib, and corrective actions if necessary. This new AD expands the applicability of the existing AD and requires new repetitive inspections for fuel leaks of the front and rear spars of the wing, and for discrepancies in the front and rear spars of the wing in the area of the wing center section, and in the lugs on the rear spar and wing trailing edge panel rib. This AD also requires related investigative and corrective actions, if necessary. This AD results from reports of cracking in the upper and lower flanges of the front and rear spars of the wing near the wing center section, and in the lugs on the rear spar. We are issuing this AD to detect and correct cracking or other discrepancies in these areas, which could result in structural failure of the wing.

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 05-23904 applies to

MakesSabreliner

ModelsNA-265-20, NA-265-30, NA-265-40, NA-265-50, NA-265-60, NA-265-65, NA-265-70, NA-265-80

certain

Whether AD 05-23904 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 05-23904 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.