# Airworthiness Directives; Airbus SAS Airplanes
> **Rule** · Final rule. · Published 2025-08-18 · Effective 2025-09-22 · 90 FR 40032
## Document
- **Document number:** 2025-15686
- **Category:** airworthiness
- **Manufacturer:** Airbus SAS
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 90 FR 40032
- **Publication date:** 2025-08-18
- **Effective date:** 2025-09-22
- **FAA docket:** Docket No. FAA-2025-0342
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A300 B4-2C, A300 B4-203, A300 B4-603, A300 B4- 605R, A300 B4-622, A300 B4-622R, and A300 F4-605R airplanes. This AD was prompted by reports of cracking of the main landing gear (MLG) support rib 5 lower flange on certain modified airplanes due to incorrect accomplishment of modification instructions. This AD requires a special detailed inspection (geometrical inspection) of the MLG rib 5 lower flange holes on the left-hand wing and right-hand wing and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/08/18/2025-15686/airworthiness-directives-airbus-sas-airplanes)
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