Is AD E7-20681 a recurring Airworthiness Directive?

No — AD E7-20681 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD E7-20681 apply to?

AD E7-20681 applies to Bell Helicopter Textron Canada — models 206A, 206B, 206. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive E7-20681

one-time

AD E7-20681 · 2007-10-22 · airframe

Airworthiness Directives; Bell Helicopter Textron Canada Model 206A and 206B Series Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Canada (Bell) Model 206A and 206B series helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The aviation authority of Canada, with which we have a bilateral agreement, states in the MCAI:

Which aircraft AD E7-20681 applies to

MakesBell Helicopter Textron Canada

Models206A, 206B, 206

Part-conditional — 206-031-554.

Applies to helicopters with transmission pylon support spindle P/N 206-031-554 installed, bearing specific repair serial numbers: repaired by Cadorath Aerospace Inc. (B12-11568, B12-12244, B12-12260, B12-12647, B12-12676, B12-12847, B12-13292, B12-14395, B12-15750, B12-17149, B12-17266, B12-1828, B12-18649, B12-19330, B12-19381, B12-20668, B12-2224, B12-2286, B12-3595, B12-3774, B12-3808, B12-5171, B12-757, B12-8053, B12-8605, B12-932, B-21223, B-21297, B22005, B22515, B-22558, CAI3852, CAI3853, EA287, EA318, EA322, EA393, EA751, EA-761, MW546, RE1044, RE113, RE743) or by H-S Tools & Parts Inc. (B12-11127, B12-12883, B12-13158, B12-13535, B12-13545, B12-13593, B12-13657, B12-13716, B12-14061, B12-14078, B12-15131, B12-15908, B12-16078, B120-16267, B12-16825, B12-16867, B12-17149, B12-17266, B12-18157, B12-18163, 12-18456, B12-19450, B12-21573, B12-3106, B12-605, B12-7627, B-22385, EA-391, MW445, MW506, MW546, RE278, RE329, RE582); certificated in any category.

Whether AD E7-20681 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 E7-20681 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.