Is AD 2021-08-16 a recurring Airworthiness Directive?

Yes — AD 2021-08-16 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2021-08-16 apply to?

AD 2021-08-16 applies to Pzl Swidnik S.A. — models W-3A, W-3. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-08-16

recurring

Official AD 2021-08-16 · FR doc 2021-08567 · 2021-04-26 · airframe

Airworthiness Directives; PZL Swidnik S.A. Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for PZL Swidnik S.A. (PZL) Model W-3A helicopters. This AD requires repetitive inspections of a certain part-numbered stainless steel cable (cable) installed on a certain part-numbered hoist assembly, and depending on those inspection results, removing certain parts from service and reporting the results. This AD also prohibits installing the affected part unless it is inspected per the AD requirements. This AD was prompted by wear of and damage to the cable near the swaged terminal due to movement of the hook assembly. The actions of this AD are intended to address an unsafe condition on these products.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2021-08-16 applies to

MakesPzl Swidnik S.A.

ModelsW-3A, W-3

Part-conditional — 76378-500, 712952.

Applies to helicopters with a Collins Aerospace (formerly Goodrich) electric hoist part number 76378-500 with a stainless steel cable part number 712952 installed.

Whether AD 2021-08-16 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 2021-08-16 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.