# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2012-08-07 · Effective 2012-09-11 · 77 FR 46935
## Document
- **Document number:** 2012-18579
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 46935
- **Publication date:** 2012-08-07
- **Effective date:** 2012-09-11
- **FAA docket:** Docket No. FAA-2012-0414
## Abstract

We are adopting a new airworthiness directive (AD) certain Airbus Model A310-203, -221, and -222 airplanes. This AD was prompted by the manufacturer re-classifying slat extension eccentric bolts as principal structural elements with replacement due at or before their calculated fatigue lives. This AD replaces certain slat extension eccentric bolts with new bolts. We are issuing this AD to prevent fatigue cracking, which could result in the loss of structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/07/2012-18579/airworthiness-directives-airbus-airplanes)
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