Is AD 2010-26-11 a recurring Airworthiness Directive?

No — AD 2010-26-11 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2010-26-11 apply to?

AD 2010-26-11 applies to Kaman — models K-1200. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2010-26-11

one-time

Official AD 2010-26-11 · FR doc 2010-31960 · 2010-12-21 · airframe

Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Model K-1200 Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for the Kaman Model K-1200 helicopters. This AD requires revising the Limitations section of the Instructions for Continued Airworthiness (ICA) by establishing a life limit of 8,000 hours time-in-service (TIS) for each main rotor blade (blade) set. Also, this AD requires removing each blade set from service if it has accumulated 8,000 or more hours time-in-service (TIS). This AD also requires replacing certain blade sets with airworthy blade sets at specified intervals based on the blade set serial number (S/N). This AD was prompted by an accident and the subsequent discovery of cracks in multiple blade spars. We are issuing this AD to prevent blade failure and subsequent loss of control of the helicopter.

Which aircraft AD 2010-26-11 applies to

MakesKaman

ModelsK-1200

Whether AD 2010-26-11 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 2010-26-11 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.