# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2012-10-31 · Effective 2012-12-05 · 77 FR 65812
## Document
- **Document number:** 2012-26192
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 65812
- **Publication date:** 2012-10-31
- **Effective date:** 2012-12-05
- **FAA docket:** Docket No. FAA-2012-0719
## Abstract

We are adopting a new airworthiness directive (AD) for all Airbus Model A330-200 freighter series airplanes; Model A330-200 and - 300 series airplanes; and Model A340-200 and -300 series airplanes. This AD was prompted by reports of ram air turbine (RAT) pump failure. This AD requires inspecting the RAT pump anti-stall valve for correct setting, re-identifying the RAT pump, performing a functional ground test of the RAT, and replacing the RAT pump or the RAT assembly with a serviceable part if necessary. We are issuing this AD to detect and correct malfunction of the RAT pump, which could lead to in-flight loss of the RAT-pump pressurization, possibly resulting in reduced control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/10/31/2012-26192/airworthiness-directives-airbus-airplanes)
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