Is AD 2005-20-38 a recurring Airworthiness Directive?

No — AD 2005-20-38 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2005-20-38 apply to?

AD 2005-20-38 applies to Bell — models 212, 412, 412EP. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2005-20-38

one-time

Official AD 2005-20-38 · FR doc 05-20324 · 2005-10-13 · airframe

Airworthiness Directives; Bell Helicopter Textron Model 212, 412, and 412EP Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the specified Bell Helicopter Textron (Bell) model helicopters modified with Aeronautical Accessories, Inc. (AAI), Supplemental Type Certificate (STC) SH2820SO or that have the affected AAI Parts Manufacturer Approval (PMA) parts installed. This action requires inspecting a certain part-numbered reservoir assembly adapter (adapter) for the counter bore depth (dimension D). If the dimension D of the adapter exceeds .860 inch, before further flight, this AD requires replacing the reservoir assembly and adapter with airworthy parts. This amendment is prompted by a report of a rupture of an adapter during nitrogen charging because of inadequate wall thickness for the operating pressures. The actions specified in this AD are intended to prevent the rupture of an adapter, uncontrolled jetting of pressurized gas from the nitrogen bottle, and subsequent injury to occupants or damage to the helicopter.

Which aircraft AD 2005-20-38 applies to

MakesBell

Models212, 412, 412EP

Part-conditional — 212-372-050, 212-371-002.

Applies only to helicopters modified with Aeronautical Accessories, Inc. (AAI) STC SH2820SO; or with AAI PMA reservoir assembly P/N 212-372-050; or with adapter P/N 212-371-002, installed. Certificated in any category.

Whether AD 2005-20-38 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 2005-20-38 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.