# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule; request for comments. · Published 2025-10-15 · Effective 2025-10-30 · 90 FR 48254
## Document
- **Document number:** 2025-19556
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 90 FR 48254
- **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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/10/15/2025-19556/airworthiness-directives-airbus-sas-airplanes)
---
*AI Analytics · CC0 1.0*