Is AD 2011-26001 a recurring Airworthiness Directive?

No — AD 2011-26001 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-26001 apply to?

AD 2011-26001 applies to Diamond Aircraft Industries Gmbh — models DA 40. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-26001

one-time

AD 2011-26001 · 2011-10-12 · airframe

Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes With Supplemental Type Certificate (STC) SA03674AT

What this AD requires

We are adopting a new airworthiness directive (AD) for Diamond Aircraft Industries GmbH Model (Diamond) DA 40 airplanes equipped with cabin air conditioning vapor cycle system (VCS) installed per STC SA03674AT held by Premier Aircraft Services (originally held by DER Services, Inc.) following DER Services Master Document List MDL-2006- 020-1, Revision C, dated February 3, 2009; Revision D, dated April 22, 2009; Revision E, dated May 12, 2010; or Revision F, dated July 6, 2010. This AD was prompted by reports of damage around the VCS compressor mounting areas found during maintenance inspections. This AD requires deactivation of the VCS, removal of the compressor and bracket, and revision to the airplane weight and balance. We are issuing this AD to correct the unsafe condition on these products.

Which aircraft AD 2011-26001 applies to

MakesDiamond Aircraft Industries Gmbh

ModelsDA 40

Part-conditional — SA03674AT.

Applies only to airplanes equipped with vapor cycle system (VCS) cabin air conditioning installed per Premier Aircraft Service STC SA03674AT following DER Services Master Document List MDL-2006-020-1, Revision C (dated 2009-02-03), Revision D (dated 2009-04-22), Revision E (dated 2010-05-12), or Revision F (dated 2010-07-06).

Whether AD 2011-26001 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 2011-26001 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.