# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule; request for comments. · Published 2016-02-18 · Effective 2016-03-04 · 81 FR 8134
## Document
- **Document number:** 2016-03215
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 81 FR 8134
- **Publication date:** 2016-02-18
- **Effective date:** 2016-03-04
- **FAA docket:** Docket No. FAA-2016-0467
## Abstract

We are superseding Airworthiness Directive (AD) 2015-26-02 for all Airbus Model A330-200, A330-200 Freighter, and A330-300 series airplanes; and Airbus Model A340-200, A340-300, A340-500, and A340-600 series airplanes. AD 2015-26-02 required, for certain airplanes, identification of the part number, serial number, and standard of the ram air turbine (RAT) pump, RAT module, RAT actuator, and RAT lower gearbox assembly; replacement of the balance weight screw, modification of the actuator coil spring, modification of the actuator, an inspection of the anti-stall valve for correct installation in the RAT pump housing; and corrective actions if necessary. For certain other airplanes, AD 2015-26-02 required re- identification or replacement of the RAT module. This new AD requires the same actions as AD 2015-26-02. This new AD was prompted by a report of a typographical error in the regulatory text of AD 2015-26-02. We are issuing this AD to prevent loss of the impeller function and RAT pump pressurization capability, which, if preceded by a total engine flame-out, could result in loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/02/18/2016-03215/airworthiness-directives-airbus-airplanes)
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