airworthiness · Rule · Final rule; request for comments. · Published 2025-10-15 · Effective 2025-10-30 · 90 FR 48254
Document
Document number
2025-19556
Federal Register citation
90 FR 48254
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Airbus SAS
Publication date
2025-10-15
Effective date
2025-10-30
FAA docket
Docket No. FAA-2025-3430
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-223, -223F, -243, -243F, -321, -322, - 323, -341, -342, and -343 airplanes. This AD was prompted by reported occurrences of thrust fluctuation during descent with autothrottle (ATHR) active. This AD requires modifying the pin programming of the flight management guidance envelope computers (FMGECs) to activate the ATHR N1 function. The FAA is issuing this AD to address the unsafe condition on these products.