Airworthiness Directives: Boeing Model 757 Series Airplanes Equipped With Moog Spoiler Actuators
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1996-04-25
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Abstract:This amendment supersedes an existing airworthiness directive (AD) that is applicable to Boeing Model 757 series airplanes equipped with certain Abex spoiler actuator electro-hydraulic servo valves (EHSV) installed in certain spoiler actuators. The existing AD currently requires a one-time inspection of the spoiler actuator to determine if a suspect EHSV is incorrectly installed, and replacement of the EHSV, if necessary. That amendment was prompted by reports that a bias spring in the EHSV of certain spoiler actuators was found to be incorrectly installed. The actions specified by that AD are intended to prevent a significant control upset of the airplane as a result of problems associated with an incorrectly installed EHSV in the spoiler actuator assembly. This amendment adds additional suspect EHSV's that require inspection; it also corrects the actuator manufacturer's name and corrects the serial number of one EHSV. DATES: Effective May 10, 1996.
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Content Notes:2020-05-13: This item was removed from ROSA P because it does not conform with NTL’s collection development policy. If you have questions about this decision, please contact us at https://transportation.libanswers.com/
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