Is AD 2017-25-08 a recurring Airworthiness Directive?

No — AD 2017-25-08 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-25-08 apply to?

AD 2017-25-08 applies to Atr (Avions De Transport Regional) — models ATR42-500, ATR72-212A, ATR42, ATR72. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-25-08

one-time

Official AD 2017-25-08 · FR doc 2017-26621 · 2017-12-13 · airframe

Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R[eacute]gional Model ATR42-500 and ATR72- 212A airplanes. This AD requires revising the airplane flight manual to provide procedures to the flightcrew for operational restrictions affecting in-flight use of the autopilot (AP) or yaw damper (YD) during single source operation. This AD was prompted by flight test evaluations that revealed discrepancies with the YD and AP when in single source operation on certain airplanes. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2017-25-08 applies to

MakesAtr (Avions De Transport Regional)

ModelsATR42-500, ATR72-212A, ATR42, ATR72

Applies only to airplanes modified in production by incorporation of ATR modification 6977 (New Avionics Suite Standard 2), or modified in service by incorporation of ATR Service Bulletin ATR42-31-0091 Revision 02 (dated January 18, 2016) or ATR Service Bulletin ATR72-31-1092 Revision 03 (dated January 18, 2016), as applicable.

Whether AD 2017-25-08 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 2017-25-08 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.