Is AD E6-13966 a recurring Airworthiness Directive?

No — AD E6-13966 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD E6-13966 apply to?

AD E6-13966 applies to Bombardier — models DHC-8-200, DHC-8-300, DHC-8-400. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive E6-13966

one-time

AD E6-13966 · 2006-08-25 · airframe

Airworthiness Directives; Bombardier Model DHC-8-100, DHC-8-200, DHC-8-300, and DHC-8-400 Series Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model DHC-8-100, DHC-8-200, DHC-8-300, and DHC-8-400 series airplanes. This AD requires inspecting the left and right control column torque tube assemblies to determine the type of rivets installed and replacing incorrect or indeterminate type rivets with the correct type rivets. This AD results from a report that incorrect rivets having lower than required strength were installed on the control column torque tube during production. We are issuing this AD to prevent shear failure of control column torque tube rivets, which could cause unexpected decoupling of the elevators and large unwanted deflection of the free elevator, and consequent reduced controllability of the airplane.

Which aircraft AD E6-13966 applies to

MakesBombardier

ModelsDHC-8-200, DHC-8-300, DHC-8-400

certain

Whether AD E6-13966 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 E6-13966 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.