Is AD 2007-12-23 a recurring Airworthiness Directive?

Yes — AD 2007-12-23 requires a repetitive inspection every 100 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2007-12-23 apply to?

AD 2007-12-23 applies to Md Helicopters — models 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2007-12-23

recurring

Official AD 2007-12-23 · FR doc E7-11393 · 2007-06-14 · airframe

Airworthiness Directives; MD Helicopters, Inc. Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HS, 369HM, 500N, and OH-6A Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HS, 369HM, 500N, and OH-6A helicopters that requires inspecting each landing gear fairing support assembly (support assembly), replacing or reworking certain forward and aft landing gear assemblies, and creating an access hole to facilitate inspections and a recurring inspection. A terminating action for the requirements of this AD is also provided. This amendment is prompted by five reports of landing gear strut (strut) failures. The actions specified by this AD are intended to detect a crack that could result in the failure of a strut and subsequent loss of control of the helicopter during landing.

Repetitive inspection. Re-inspect every 100 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2007-12-23 applies to

MakesMd Helicopters

Models369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, OH-6A, 369, 500, OH-6

Part-conditional — 369H6200-61, 369H6200-62, 369H6200-23, 369H6200-24, 369H92113-91, 369H92113-92, 369H92113-131, 369H92113-132.

Applies only when any of the listed Mid/Aft/Fwd Fairing, Support, Filler, or Fillet Assembly components (standard-gear or extended-gear configurations) are installed; excludes helicopters with Aerometals strut P/N 369XH6001-41, -42, -51, or -52 installed in accordance with STC No. SR00981LA.

Whether AD 2007-12-23 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 2007-12-23 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.