AD NUMBER: 2017-26-10

PRODUCT: Certain Boeing Model 757 airplanes

ACTION: Final rule; request for comments.

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2015-08-01, which applied to the aircraft listed above.

AD 2015-08-01 required, depending on airplane configuration, installing new relays and bracket assemblies, inspecting to ensure that the new relays do not contact adjacent wire bundles, torqueing the bracket assembly installation nuts and ground stud nuts, retesting the bond resistance between the bracket assemblies and the terminal lugs on the ground studs, and doing related investigative and corrective actions if necessary.

This AD does not retain any requirements, and instead requires deactivating the spoiler control module relays and capping and stowing the associated wiring on airplanes on which the actions required by AD 2015- 08-01 have been done.

This AD was prompted by a report of an uncommanded spoiler movement during flap configuration just before landing, on an airplane on which the actions required by AD 2015-08-01 had been done.

COST: The FAA estimates the cost of compliance with this AD to be $2,570 for parts and labor.

DATES: This AD is effective January 3, 2018. Comments must be received by February 12, 2018.

FMI: AD