# Airworthiness Directives; Airbus Model A300 Airplanes; and Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes)
> **Rule** · Final rule. · Published 2007-01-26 · Effective 2007-03-02 · 72 FR 3712
## Document
- **Document number:** E7-1079
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A300
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 72 FR 3712
- **Publication date:** 2007-01-26
- **Effective date:** 2007-03-02
- **FAA docket:** Docket No. FAA-2006-25891
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300 airplanes; and Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes). This AD requires replacing the pressure limiter of the parking brake system with a new or modified pressure limiter. This AD results from a report indicating that failure of the parking brake system occurred on a Model A300-600 airplane. We are issuing this AD to prevent failure of the parking brake system and interference with emergency use of the brake pedals, which could lead to airplane collision with surrounding objects or departure from the runway.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/01/26/E7-1079/airworthiness-directives-airbus-model-a300-airplanes-and-model-a300-b4-600-b4-600r-and-f4-600r)
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