Is AD 2011-23-02 a recurring Airworthiness Directive?

No — AD 2011-23-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-23-02 apply to?

AD 2011-23-02 applies to Bell — models 205A-1, 205B, 210, 212, 205. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-23-02

one-time

Official AD 2011-23-02 · FR doc 2011-28355 · 2011-11-04 · airframe

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell), Model 205A-1, 205B, 210, and 212 Helicopters

What this AD requires

This amendment supersedes an existing airworthiness directive (AD) for Bell Model 205B and 212 helicopters with certain main rotor blade (blade) assemblies installed. That AD currently requires washing the upper and lower surfaces of each blade and visually inspecting the grip plates, doublers, and the remaining upper and lower surfaces of the blades in the area between blade stations 24.5 to 40 for an edge void, corrosion, or a crack. This amendment retains the requirements of that AD for the affected part-numbered blades but increases the scope and frequency of the inspections and expands the applicability to include the Model 205A-1 and 210 helicopters, additional blade part numbers, and all helicopter serial numbers for the affected helicopter models. This amendment also requires applying a light coat of preservative oil (C-125) to all surfaces of the blade in addition to the inspection areas as required in the existing AD. This amendment is prompted by an additional report of a fatigue crack on a blade installed on a Model 212 helicopter. The actions specified by this AD are intended to detect an edge void, corrosion, or a crack on a blade, and to prevent loss of a blade and subsequent loss of control of the helicopter.

Which aircraft AD 2011-23-02 applies to

MakesBell

Models205A-1, 205B, 210, 212, 205

Part-conditional — 204-012-001-023, 204-012-001-033, 210-015-001-101, 212-015-501-005, 212-015-501-111, 212-015-501-113, 212-015-501-115, 212-015-501-117.

Applies only to helicopters with a main rotor blade of the listed part numbers installed. Note 1: Bell Helicopter Model 205A-1 helicopters modified by Supplemental Type Certificate (STC) No. SH5132NM or SH5976NM may have affected part-numbered blades installed.

Whether AD 2011-23-02 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 2011-23-02 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.