Is AD 2014-00837 a recurring Airworthiness Directive?

No — AD 2014-00837 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2014-00837 apply to?

AD 2014-00837 applies to Eurocopter Deutschland Gmbh — models EC135P2+, EC135T2+, EC135. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2014-00837

one-time

AD 2014-00837 · 2014-01-27 · airframe

Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Eurocopter Deutschland GmbH (Eurocopter) Model EC135P2+ and EC135T2+ helicopters. This AD requires inspecting the mechanical air conditioning system compressor bearing block upper bearing (upper bearing) for corrosion, leaking grease, condensation, or water. This AD was prompted by metallic debris from an upper bearing found in the air inlet areas of both engines in a Model EC135P2+ helicopter. The actions of this AD are intended to prevent metallic debris from damaging the engine, causing loss of engine power, and subsequent loss of helicopter control.

Which aircraft AD 2014-00837 applies to

MakesEurocopter Deutschland Gmbh

ModelsEC135P2+, EC135T2+, EC135

Part-conditional — L210M1872105.

Applies only to helicopters with serial numbers 870, 872, 873, 879, 883, 884, 888, 893, 900, 905, 911, 914, 916, 917, 923, and 926, with the specified mechanical air conditioning system compressor bearing block upper bearing installed.

Whether AD 2014-00837 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 2014-00837 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.