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Thu, Aug 01, 2019

AD: The Boeing Company Airplanes

AD NUMBER: 2019-14-02

PRODUCT: All Boeing Model 737 series airplanes.

ACTION: Final Rule.

SUMMARY: This AD was prompted by a report that structural fatigue cracks can develop in certain aluminum pressure module check valves prior to the design limit.

This AD requires an inspection to determine the part numbers of the four hydraulic systems A and B pressure module check valves and applicable on-condition actions.

DATES: This AD is effective August 27, 2019.

COST: The FAA estimates that this AD affects 1,747 airplanes of U.S. registry.  Operators may incur the following costs in order to comply with this AD:

  • Inspection for Parker pressure module check valves, P/N H61C0552M1: 1 work-hour × $85 per hour = $85 per airplane.
FMI: AD

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