Airworthiness Directive · Amendment 39-23465 · Rotorcraft tail boom
Bell Textron Canada Limited Helicopters
This AD applies to Bell Textron Canada Limited Model 505 helicopters, certificated in any category, as identified in Transport Canada AD CF-2026-01, dated January 12, 2026 (Transport Canada AD CF-2026-01)
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 505 helicopters. This AD was prompted by reports that the identification plate affixed to certain tail cone assemblies contains an incorrect part number (P/N), which may not accurately convey the life limit. This AD requires verifying the tail cone assembly part number and, if necessary, replacing the incorrect tail cone assembly identification plate with a new tail cone assembly identification plate containing the correct P/N and updating the existing log book or equivalent record for the helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF-2026-01.
(1) Where Transport Canada AD CF-2026-01 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where Transport Canada AD CF-2026-01 requires compliance in terms of air time, this AD requires using hours time-in-service.
(3) Where the material referenced in Transport Canada AD CF-2026-01 specifies scrapping or destroying certain parts, this AD requires removing those parts from service.
(4) Where the material referenced in Transport Canada AD CF-2026-01 specifies making an entry in the helicopter's log book and historical service records, this AD requires making an entry of the tail cone assembly part number and serial number of the replacement identification plate in the existing helicopter log book or equivalent document but you are not required to make an entry of compliance with the material.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
