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Fri, Jan 10, 2020

AD: The Boeing Company Airplanes

AD NUMBER: 2019-25-14

PRODUCT: Certain The Boeing Company Model 777-300ER and 777F series airplanes.

ACTION: Final rule

SUMMARY: This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the fuselage stringers, stringer splices, and skin splice straps are subject to widespread fatigue damage (WFD).

This AD requires repetitive detailed inspections of certain stringer splices and skin splice straps for any cracks, repetitive high frequency eddy current (HFEC) inspections of certain stringers and stringer splices for any cracks, and applicable on-condition actions.

The FAA is issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective February 10, 2020.

COST: The FAA estimates that this AD affects 12 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

Detailed and HFEC Inspections

  • Up to 79 work-hours × $85 per hour = Up to $6,715 per inspection cycle per aircraft.
FMI: AD

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