Is AD 2011-05-07 a recurring Airworthiness Directive?

Yes — AD 2011-05-07 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2011-05-07

Q: Which aircraft does AD 2011-05-07 apply to?

AD 2011-05-07 applies to Allied Ag Cat Productions — models G-164, G-164A, G-164B, G-164B with 73'' wing gap, G-164B-15T, G-164B-20T, G-164B-34T, G-164C. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2011-05-07 · FR doc 2011-4160 · 2011-03-02 · airframe

Airworthiness Directives; Allied Ag Cat Productions, Inc. Models G-164, G-164A, G-164B, G-164B With 73″ Wing Gap, G-164B-15T, G-164B-34T, G-164B-20T, G-164C, G-164D, and G-164D With 73″ Wing Gap Airplanes

What this AD requires

We are superseding an existing airworthiness directive (AD) for the products listed above. That AD currently requires repetitively inspecting the interior and the exterior of the main tubular spar of the rudder assembly for corrosion, taking necessary corrective action if corrosion is found, and applying corrosion protection. This AD retains the requirements of the previous AD and changes the compliance time for certain products listed above. This AD was prompted by our determination that the compliance time specified for Models G-164, G- 164A, and G-164B airplanes does not adequately address the unsafe condition. We are issuing this AD to detect and correct corrosion in the rudder main tubular spar, which could result in failure of the rudder main spar tube. This failure could lead to loss of directional control.

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 2011-05-07 applies to

MakesAllied Ag Cat Productions

ModelsG-164, G-164A, G-164B, G-164B with 73'' wing gap, G-164B-15T, G-164B-20T, G-164B-34T, G-164C, G-164D, G-164D with 73'' wing gap

Whether AD 2011-05-07 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 2011-05-07 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.