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Thu, Nov 23, 2017

AD: The Boeing Company Airplanes

AD NUMBER: 2017-23-07

PRODUCT: All Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes.

ACTION: Final Rule.

SUMMARY: This AD was prompted by reports of cracks found in the lower chord of the left wing rear spar.

This AD requires repetitive inspections for cracking of the lower chord of the rear spar and lower aft skin and applicable on-condition actions.

COST: The FAA estimates  that this AD affects 190 airplanes of U.S. registry. The cost of compliance is estimated to be $850 per inspection cycle per aircraft.

DATES: This AD is effective December 26, 2017.

FMI: AD

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