Airworthiness Directive · Amendment 39-19141 · Flight controls
The Boeing Company Airplanes
Superseded. A later AD replaced this one: AD 2021-05-11. Comply with the one in force.
This AD applies to The Boeing Company Model 757-200, -200PF, -200CB, and -300 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 757-27A0157, dated December 18, 2017.
We are superseding Airworthiness Directive (AD) 2015-08-01, which applied to certain The Boeing Company Model 757 airplanes. 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. We are issuing this AD to address the unsafe condition on these products.
(1) For airplanes in Configuration 1 in Groups 1, 2, and 3, as defined in Boeing Alert Service Bulletin 757-27A0157, dated December 18, 2017: Within 90 days after the effective date of this AD, do all applicable actions identified as “RC” (required for compliance) in, and in accordance with, the Accomplishment Instructions of Boeing Alert Service Bulletin 757-27A0157, dated December 18, 2017.
(2) For airplanes in Configuration 2 in Groups 1, 2, and 3, as defined in Boeing Alert Service Bulletin 757-27A0157, dated December 18, 2017: No work is required by this paragraph.
As of the effective date of this AD, do not accomplish the actions specified in Boeing Service Bulletin 757-27A0152 on any airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
