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Department of Transportation
Federal Aviation Administration
• 14 CFR Part 39
• [Docket No. FAA-2026-0011; Project Identifier MCAI-2025-01758-R; Amendment 39-23236; AD 2026-01-08]
• RIN 2120-AA64
AGENCY:
Federal Aviation Administration (FAA), DOT.
ACTION:
Final rule; request for comments.
SUMMARY:
The FAA is superseding Airworthiness Directive (AD) 2025-23-52, which applied to all Airbus Helicopters Model EC130B4 and EC130T2 helicopters. AD 2025-23-52, required replacing the center shaft assembly with a serviceable center shaft assembly (either a shaft with another part number (P/N) or the same P/N with lower hours time-in-service (TIS)) and prohibited installing a center shaft assembly that is not a serviceable center shaft assembly on any helicopter. Since the FAA issued AD 2025-23-52, it was determined that for certain center shaft assemblies a repetitive inspection is adequate instead of replacement. This AD requires repetitively inspecting the center shaft assembly for cracks and replacing the center shaft assembly if it fails the inspection or exceeds a certain TIS. This AD also prohibits installing a center shaft assembly that is not a serviceable center shaft assembly on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
DATES:
This AD is effective February 2, 2026.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of February 2, 2026.
The FAA must receive comments on this AD by March 2, 2026.
ADDRESSES:
You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:
•
Federal eRulemaking Portal:
Go to
regulations.gov.
Follow the instructions for submitting comments.
•
Fax:
(202) 493-2251.
•
Mail:
U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
•
Hand Delivery:
Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket:
You may examine the AD docket at
regulations.gov
under Docket No. FAA-2026-0011; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The street address for Docket Operations is listed above.
Material Incorporated by Reference:
• For European Union Aviation Safety Agency (EASA) material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email:ADs@easa.europa.eu;
website:
easa.europa.eu.
You may find this material on the EASA website at
ad.easa.europa.eu.
• You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Parkway, Room 6N-321, Fort Worth, TX 76177. For information on the
( printed…
Fonte: Federal Register (federalregister.gov). Texto original em inglês.