Is AD 2026-11-05 a recurring Airworthiness Directive?

Yes — AD 2026-11-05 requires a repetitive inspection every 15 hours. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2026-11-05

Q: Which aircraft does AD 2026-11-05 apply to?

AD 2026-11-05 applies to Carson Helicopters, Inc., Croman Corporation, Glacier Helicopter, Inc., Reynolds Aviation, Sikorsky Aircraft Corporation, Sikorsky Aircraft, Siller Helicopters — models S-61L, SH-3H, CH-3E, CH-3C, HH-3C, HH-3E, S-61A, S-61D. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2026-11-05 · FR doc 2026-11185 · 2026-06-04 · airframe

Airworthiness Directives; Various Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for various helicopters. This AD was prompted by a report of a loss of tail rotor authority due to auxiliary system fluid loss caused by a yaw pedal damper housing fatigue fracture and attachment bolt fatigue fracture. This AD requires performing repetitive visual inspections of the auxiliary servo assembly, a fluorescent penetrant inspection (FPI) of the yaw pedal damper housing and, if necessary, corrective actions. This AD also requires determining and recording the remaining life of a certain part and revising the existing rotorcraft flight manual (RFM) to provide the flight crew with procedures to follow under certain conditions. This AD also requires revising the airworthiness limitations section (ALS) of the existing maintenance manual (MM) or instructions for continued airworthiness (ICAs) and the existing approved maintenance or inspection program, as applicable by incorporating a new service life limit for a certain part. The FAA is issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 15 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2026-11-05 applies to

MakesCarson Helicopters, Inc.Croman CorporationGlacier Helicopter, Inc.Reynolds AviationSikorsky Aircraft CorporationSikorsky AircraftSiller Helicopters

ModelsS-61L, SH-3H, CH-3E, CH-3C, HH-3C, HH-3E, S-61A, S-61D, S-61E, S-61V, S-61N, S-61NM, S-61R, SH-3A, S-61, SH-3, CH-3, HH-3

Applicability is enumerated per Type Certificate holder in paragraphs (c)(1)-(7): Carson Helicopters, Inc. (S-61L, SH-3H); Croman Corporation (SH-3H); Glacier Helicopter, Inc. (CH-3E); Reynolds Aviation (USAF CH-3C, CH-3E, HH-3C, HH-3E); Sikorsky Aircraft Corporation (S-61A, S-61D, S-61E, S-61V); Sikorsky Aircraft (S-61L, S-61N, S-61NM, S-61R); Siller Helicopters (CH-3E, SH-3A).

Whether AD 2026-11-05 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 2026-11-05 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.