# Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes; and A300 B4-600, B4-600R, C4-605R Variant F, and F4-600R (Collectively Called A300-600) Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2004-01-07 · Effective 2004-01-22 · 69 FR 867
## Document
- **Document number:** 04-46
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A300 B2 and B4 Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 69 FR 867
- **Publication date:** 2004-01-07
- **Effective date:** 2004-01-22
- **FAA docket:** Docket No. 2003-NM-248-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to the Airbus airplanes listed above. This action requires a one-time inspection for cracking of the lower outboard flange of gantry No. 4 in the main landing gear bay area, and repair if necessary. This action is necessary to find and fix such cracking, which could result in reduced structural integrity of the fuselage, and consequent rapid decompression of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/01/07/04-46/airworthiness-directives-airbus-model-a300-b2-and-b4-series-airplanes-and-a300-b4-600-b4-600r)
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