Is AD 2013-13-17 a recurring Airworthiness Directive?

No — AD 2013-13-17 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-13-17 apply to?

AD 2013-13-17 applies to Bombardier — models -400, -401, -402, DHC-8. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-13-17

one-time

Official AD 2013-13-17 · FR doc 2013-17210 · 2013-07-22 · airframe

Airworthiness Directives; Bombardier, Inc. Airplanes

What this AD requires

We are superseding airworthiness directive (AD) 2011-13-08 for certain Bombardier, Inc. Model DHC-8-400 series airplanes. AD 2011-13- 08 required a free-play check for excessive free-play of the shaft swaged bearing installed in the tailstock end of each elevator power control unit (PCU), and replacing any PCU on which the bearing exceeds allowable limits with a serviceable PCU. This new AD adds airplanes to the applicability from that of AD 2011-13-08. This AD was prompted by a determination that additional airplanes are affected by the identified unsafe condition. We are issuing this AD to detect and correct excessive free-play of the swaged bearings, which could lead to excessive airframe vibrations and difficulties in pitch control, and consequent loss of controllability of the airplane.

Which aircraft AD 2013-13-17 applies to

MakesBombardier

Models-400, -401, -402, DHC-8

Serial-conditional — narrows to serials 4001–4334, 4336–4336.

Whether AD 2013-13-17 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 2013-13-17 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.