# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2012-09-18 · Effective 2012-10-23 · 77 FR 57484
## Document
- **Document number:** 2012-22954
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 57484
- **Publication date:** 2012-09-18
- **Effective date:** 2012-10-23
- **FAA docket:** Docket No. FAA-2012-0671
## Abstract

We are superseding an existing airworthiness directive (AD) for all Airbus Model A330-243, -341, -342 and -343 airplanes. That AD currently requires modifying certain cowl assemblies of the left- and right-hand thrust reversers. This new AD requires removing certain C- duct assemblies of the left- and right-hand thrust reversers from service at certain designated life limits, and also adds airplanes to the applicability. This AD was prompted by new life limits on certain thrust reverser C-duct assemblies. We are issuing this AD to prevent fatigue cracking of the hinges integrated into the 12 o'clock beam of the thrust reversers, which could result in separation of a thrust reverser from the airplane, and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/18/2012-22954/airworthiness-directives-airbus-airplanes)
---
*AI Analytics · CC0 1.0*