Is AD 2014-19525 a recurring Airworthiness Directive?

No — AD 2014-19525 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2014-19525

Q: Which aircraft does AD 2014-19525 apply to?

AD 2014-19525 applies to Airbus Helicopters — models EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, EC135T2+, EC135. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 2014-19525 · 2014-08-21 · airframe

Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Previously Eurocopter Deutschland GbmH) (Airbus Helicopters) Helicopters

What this AD requires

We are superseding Airworthiness Directive (AD) 2012-10-53 for Eurocopter Deutschland GmbH (ECD) (now Airbus Helicopters) Model EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, and EC135T2+ helicopters. AD 2012-10-53 required, before further flight and at specified intervals, checking and inspecting the upper and lower main rotor hub (MRH) shaft flanges for a crack, and inspecting the lower hub-shaft flange bolt attachment areas for a crack. Since we issued AD 2012-10- 53, it has been determined that it is safe to increase the visual inspection intervals of the MRH shaft flanges from 10 hours time-in- service (TIS) to 50 hours TIS and remove the inspection of the lower MRH shaft flange bolt attachment areas. This new AD continues to require checking and inspecting the upper and lower MRH shaft flanges for a crack. These actions are intended to detect a crack on the MRH shaft flange, which if not corrected, could result in failure of the MRH and subsequent loss of control of the helicopter.

Which aircraft AD 2014-19525 applies to

MakesAirbus Helicopters

ModelsEC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, EC135T2+, EC135

Part-conditional — L623M1006101, L623M1206101, L623M1006102, L623M1206102, L623M1006103, L623M1206103.

Applies only to helicopters with a main rotor hub (MRH) shaft of one of the listed part numbers installed.

Whether AD 2014-19525 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

Supersession

Supersedes AD 2012-10-53.

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 2014-19525 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.