Is AD 2005-13-23 a recurring Airworthiness Directive?

No — AD 2005-13-23 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2005-13-23 apply to?

AD 2005-13-23 applies to Eurocopter — models EC-155B, EC-155B1, SA-365N, SA-365N1, AS-365N2, AS-365N3, EC-155, SA-365. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2005-13-23

one-time

Official AD 2005-13-23 · FR doc 05-12418 · 2005-06-24 · airframe

Airworthiness Directives; Eurocopter France Model EC 155B, EC155B1, SA-365N, SA-365N1, AS-365N2, and AS 365 N3 Helicopters

What this AD requires

This amendment supersedes an existing airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC 155B, SA-365N and N1, AS-365N2, and AS 365 N3 helicopters. That AD currently requires inspecting the hydraulic brake hose (hose) for crazing, pinching, distortion, or leaks at the torque link hinge and replacing the hose, if necessary. That AD also requires inspecting the hose and the emergency flotation gear pipe to ensure adequate clearance, and adjusting the landing gear leg, if necessary. This amendment requires the same actions as the existing AD and adds another model helicopter to the applicability. This amendment is prompted by notification by the manufacturer and the European Authority that another affected model helicopter, the Model EC155B1, may have the same unsafe condition and should be added to the existing AD. The actions specified by this AD are intended to prevent failure of a hose, resulting in failure of hydraulic pressure to the brakes on the affected landing gear wheel, and subsequent loss of control of the helicopter during a run-on landing.

Which aircraft AD 2005-13-23 applies to

MakesEurocopter

ModelsEC-155B, EC-155B1, SA-365N, SA-365N1, AS-365N2, AS-365N3, EC-155, SA-365, AS-365

Applies only to helicopters with emergency flotation gear installed. Certificated in any category.

Whether AD 2005-13-23 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 2005-13-23 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.