Is AD 2013-22-21 a recurring Airworthiness Directive?

No — AD 2013-22-21 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-22-21 apply to?

AD 2013-22-21 applies to Bell — models 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, 407, 206. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-22-21

one-time

Official AD 2013-22-21 · FR doc 2013-26563 · 2013-11-08 · airframe

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (Bell), Model 206A, 206B, 206L, 206L-1, 206L- 3, 206L-4, and 407 helicopters with an Apical Industries, Inc. (Apical) emergency float kit installed under Supplemental Type Certificate (STC) Number SR01535LA. This AD was prompted by an incident in which the floats installed on a helicopter failed to deploy. This AD requires inspecting, labeling, and replacing the float inflation hoses. We are issuing this AD to prevent failure of the emergency floatation gear to deploy during an emergency event.

Which aircraft AD 2013-22-21 applies to

MakesBell

Models206A, 206B, 206L, 206L-1, 206L-3, 206L-4, 407, 206

Applies only to helicopters with an Apical Industries emergency float kit installed under STC No. SR01535LA.

Whether AD 2013-22-21 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 2013-22-21 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.