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Thu, Aug 16, 2018

AD: Airbus SAS Airplanes

AD NUMBER: 2018-17-05

PRODUCT: All Airbus SAS Model A350- 941 and -1041 airplanes.

ACTION: Final rule; request for comments

SUMMARY: This AD was prompted by reports that electro-hydrostatic actuators (EHAs), installed on the inboard ailerons, elevators, and rudder, had degraded insulation resistance in the direct drive solenoid valve (DDSOV), due to incorrect sealing application.

This AD requires a check of the insulation resistance of the DDSOV of each affected EHA and applicable corrective actions.

DATES: This AD becomes effective August 30, 2018., Comments must be received by October 1, 2018.

COST: The FAA estimates that this AD affects 11 airplanes of U.S. registry. The cost of compliance is estimated as follows:

  • Required Action: Up to 24 work-hours × $85 per hour = Up to $2,040 per aircraft.
  • On-Condition Actions: Up to 30 work-hours × $85 per hour = Up to $2,550 per aircraft.
FMI: AD

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