Is AD 2023-11-07 a recurring Airworthiness Directive?

No — AD 2023-11-07 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2023-11-07

Q: Which aircraft does AD 2023-11-07 apply to?

AD 2023-11-07 applies to Airbus Helicopters, Airbus Helicopters Deutschland Gmbh, Air Space Design And Manufacturing, Llc, Bell Textron Canada Limited, Bell Textron Inc., Brantly International, Inc., Centerpointe Aerospace Inc., Columbia Helicopters, Inc., The Enstrom Helicopter Corporation, Erickson Air-Crane Incorporated, Dba Erickson Air-Crane, Helicopteres Guimbal, Siam Hiller Holdings, Inc., Kaman Aerospace Corporation, Leonardo S.P.A., Md Helicopters Inc., Pzl Swidnik S.A., Robinson Helicopter Company, Schweizer Rsg Llc, Scotts-Bell 47 Inc., Sikorsky Aircraft Corporation. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2023-11-07 · FR doc 2023-13319 · 2023-06-22 · appliance

Airworthiness Directives; Various Helicopters

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2021-23- 13, which applied to all helicopters equipped with a radio (also known as radar) altimeter. AD 2021-23-13 required revising the limitations section of the existing rotorcraft flight manual (RFM) for your helicopter to incorporate limitations prohibiting certain operations requiring radio altimeter data when in the presence of 5G C-Band interference in areas as identified by Notices to Air Missions (NOTAMs). Since the FAA issued AD 2021-23-13, the FAA determined that additional limitations are needed due to the continued deployment of new 5G C-Band base stations whose signals are expected to cover most of the contiguous United States at transmission frequencies between 3.7- 3.98 GHz (5G C-Band). This AD requires revising the limitations section of the existing RFM to incorporate limitations prohibiting certain operations requiring radio altimeter data, due to the presence of 5G C- Band interference. The FAA is issuing this AD to address the unsafe condition on these products. In addition, the FAA is requesting comment on the change to the spurious emission level requirement.

Which aircraft AD 2023-11-07 applies to

MakesAirbus HelicoptersAirbus Helicopters Deutschland GmbhAir Space Design And Manufacturing, LlcBell Textron Canada LimitedBell Textron Inc.Brantly International, Inc.Centerpointe Aerospace Inc.Columbia Helicopters, Inc.The Enstrom Helicopter CorporationErickson Air-Crane Incorporated, Dba Erickson Air-CraneHelicopteres GuimbalSiam Hiller Holdings, Inc.Kaman Aerospace CorporationLeonardo S.P.A.Md Helicopters Inc.Pzl Swidnik S.A.Robinson Helicopter CompanySchweizer Rsg LlcScotts-Bell 47 Inc.Sikorsky Aircraft Corporation

Applies to all models of the make above.

Applies to all helicopters, of any make/model, equipped with a radio (radar) altimeter; the listed design approval holders are examples and not an exhaustive/limiting list.

Whether AD 2023-11-07 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 2023-11-07 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.