Is AD 2013-16-14 a recurring Airworthiness Directive?

No — AD 2013-16-14 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2013-16-14

Q: Which aircraft does AD 2013-16-14 apply to?

AD 2013-16-14 applies to Eurocopter Deutschland — models EC135 P1, EC135 P2, EC135 P2+, EC135 T1, EC135 T2, EC135 T2+, EC135. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2013-16-14 · FR doc 2013-19500 · 2013-09-04 · airframe

Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for all Eurocopter Deutschland GmbH (ECD) EC 135 P1, P2, P2+, T1, T2, and T2+ helicopters equipped with a certain main transmission housing upper part. This AD requires installing a corrugated washer in the middle of the main transmission filter housing upper part and modifying the main transmission housing upper part. This AD was prompted by an inspection of housing upper parts that revealed the bypass inlet in the oil filter area was not manufactured in accordance with applicable design specifications. The actions of this AD are intended to prevent failure of the main transmission and subsequent loss of control of the helicopter.

Which aircraft AD 2013-16-14 applies to

MakesEurocopter Deutschland

ModelsEC135 P1, EC135 P2, EC135 P2+, EC135 T1, EC135 T2, EC135 T2+, EC135

Part-conditional — 4649 301 034.

Applies only to helicopters with main transmission FS108 housing upper part P/N 4649 301 034 and a serial number listed in Table 1 of Eurocopter Alert Service Bulletin EC135-63A-017, Revision 0, dated October 11, 2010.

Whether AD 2013-16-14 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 2013-16-14 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.