Is AD 2010-05-01 a recurring Airworthiness Directive?

No — AD 2010-05-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2010-05-01

Q: Which aircraft does AD 2010-05-01 apply to?

AD 2010-05-01 applies to Atr-Gie Avions De Transport Régional — models ATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-201, ATR72-102, ATR72-202. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2010-05-01 · FR doc 2010-3558 · 2010-02-25 · airframe

Airworthiness Directives; ATR-GIE Avions de Transport Régional Model ATR42 and ATR72 Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Which aircraft AD 2010-05-01 applies to

MakesAtr-Gie Avions De Transport Régional

ModelsATR42-200, ATR42-300, ATR42-320, ATR42-500, ATR72-101, ATR72-201, ATR72-102, ATR72-202, ATR72-211, ATR72-212, ATR72-212A, ATR42, ATR72

Part-conditional — 863521-01.

Applies to airplanes equipped with L'Hotellier Halon 1211 (BCF) fire extinguishers, P/N 863521-01, having any serial number identified in paragraph 1.A. of L'Hotellier Service Bulletin 863521-26-001, Revision 2, dated February 4, 2010.

Whether AD 2010-05-01 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 2010-05-01 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.