# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2013-11-14 · Effective 2013-12-19 · 78 FR 68352
## Document
- **Document number:** 2013-26564
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 68352
- **Publication date:** 2013-11-14
- **Effective date:** 2013-12-19
- **FAA docket:** Docket No. FAA-2013-0212
## Abstract

We are adopting a new airworthiness directive (AD) for all Airbus Model A330-223F, -223, -321, -322, and -323 airplanes. This AD was prompted by fatigue load analysis that determined that the inspection interval for certain pylon bolts must be reduced. This AD requires a torque check of forward engine mount bolts, and replacement if necessary. We are issuing this AD to detect and correct loose or broken bolts, which could lead to engine detachment in-flight, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/11/14/2013-26564/airworthiness-directives-airbus-airplanes)
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