Is AD 2017-13-04 a recurring Airworthiness Directive?

No — AD 2017-13-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2017-13-04 apply to?

AD 2017-13-04 applies to Airbus Helicopters — models MBB-BK 117 C-2, MBB-BK 117 D-2, MBB-BK 117. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-13-04

one-time

Official AD 2017-13-04 · FR doc 2017-12800 · 2017-06-22 · airframe

Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 C-2 (including configuration C-2e) and MBB-BK 117 D-2 helicopters. This AD requires replacing the main rotor (M/R) blade vibration absorbers. This AD was prompted by a report of strong M/R blade vibrations on a Model MBB-BK 117 C-2 helicopter. The actions of this AD are intended to prevent an unsafe condition on these products.

Which aircraft AD 2017-13-04 applies to

MakesAirbus Helicopters

ModelsMBB-BK 117 C-2, MBB-BK 117 D-2, MBB-BK 117

Part-conditional — 117-801841.11.

Applies only to helicopters with a main rotor (M/R) blade vibration absorber spacer P/N 117-801841.11 installed. Model MBB-BK 117 C-2 includes configuration C-2e.

Whether AD 2017-13-04 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 2017-13-04 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.