Is AD 2012-17278 a recurring Airworthiness Directive?

No — AD 2012-17278 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2012-17278

Q: Which aircraft does AD 2012-17278 apply to?

AD 2012-17278 applies to Boeing Vertol, Kawasaki Heavy Industries, Limited — models 107-II, KV107-II, KV107-IIA, 107, KV107. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 2012-17278 · 2012-07-23 · airframe

Airworthiness Directives; Boeing Vertol (Type Certificate Currently Held by Columbia Helicopters, Inc. (CHI)) and Kawasaki Heavy Industries, Limited Helicopters (Kawasaki)

What this AD requires

We are adopting a new airworthiness directive (AD) for CHI Model 107-II and Kawasaki Model KV107-II and KV107-IIA helicopters. This AD requires, before further flight, replacing certain upper collective pitch control yoke bolts. This AD is prompted by three failures of the affected bolts. These actions are intended to prevent failure of an upper collective pitch control yoke bolt (bolt), excessive vibration, migration of the shafts, and subsequent loss of control of the helicopter.

Which aircraft AD 2012-17278 applies to

MakesBoeing VertolKawasaki Heavy Industries, Limited

Models107-II, KV107-II, KV107-IIA, 107, KV107

Part-conditional — 107CK003-2, 107CK002-2.

Type certificate for Model 107-II currently held by Columbia Helicopters, Inc. (CHI). Applies only when upper collective pitch control assembly P/N 107CK003-2 or 107CK002-2 is installed.

Whether AD 2012-17278 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 2012-17278 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.