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Sun, Jan 03, 2016

AD: Airbus Airplanes

AD NUMBER: 2015-26-02

PRODUCT: 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.

ACTION: Final Rule

SUMMARY: This AD was prompted by a report that, during a production flight test, the ram air turbine (RAT) did not pressurize the green hydraulic system.

For certain airplanes, this AD requires identification of the part number, serial number, and standard of the 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, this AD requires re-identification or replacement of the RAT module.

The FAA is 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 the loss of control of the airplane.

DATES: This AD becomes effective February 2, 2016

FMI: AD

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