Is AD 99-11-13 a recurring Airworthiness Directive?

No — AD 99-11-13 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 99-11-13 apply to?

AD 99-11-13 applies to Cessna. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-11-13

one-time

Official AD 99-11-13 · FR doc 99-13875 · 1999-06-03 · airframe

Airworthiness Directives; Cessna Aircraft Company Model 402C Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Cessna Aircraft Company (Cessna) Model 402C airplanes. This AD requires inspecting the forward, aft, and auxiliary wing spars for cracks; repairing any cracks found; and reporting the results of the inspection to the Federal Aviation Administration (FAA). This AD is the result of an accident of one of the affected airplanes where the right-hand wing failed just inboard of the nacelle at Wing Station (WS) 87. Investigation of this accident revealed fatigue cracking of the forward main spar that initiated at the edge of the front spar forward lower spar cap. The actions specified by this AD are intended to detect and correct any cracks in the forward, aft, and auxiliary wing spars, which could result in reduced or loss of control of the airplane.

Which aircraft AD 99-11-13 applies to

MakesCessna

Boilerplate applicability only; the specific Cessna model/serial-number list precedes this excerpt and is not included. Requires external and internal inspection of the forward, aft, and auxiliary wing spars for cracks per Cessna Service Bulletin MEB99-3 (dated May 6, 1999) at 10,000 hours TIS (or within 25 hours of the effective date, whichever is later), with FAA-approved repair and reporting of any cracks found, to prevent reduced or loss of control of the airplane.

Whether AD 99-11-13 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 99-11-13 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.