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FAA orders · airworthiness directive · historical

2017-26-10: Flight controls

FAA order 2017-26-10 is an airworthiness directive in force since January 3, 2018. The FAA's subject line: Flight controls. It names Boeing 757: about 440 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: electrical power.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
The Boeing Company
Models
757-200 Series, 757-200CB Series, 757-200PF Series, 757-300 Series
On this site
Boeing 757 440 registered

Dates and paperwork

In force since
January 3, 2018
Published
December 29, 2017 (signed December 22, 2017)
Docket
FAA-2017-1179
Replaces
2015-08-01
Replaced by
2021-05-11
Status
Historical
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

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 \n\n((Page 61676)) \n\nairplane 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 hadbeen done. We are issuing this AD to address the unsafe condition on these products.

The order itself the regulatory text, as published

Show the full text (6,307 characters)
Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2015-08-01, Amendment 39-18137 (80 FR 21645, April 20, 2015), and adding the following new AD: \n\n2017-26-10 The Boeing Company: Amendment 39-19141; Docket No. FAA- 2017-1179; Product Identifier 2017-NM-177-AD. \n\n(a) Effective Date \n\n\n\tThis AD is effective January 3, 2018. \n\n(b) Affected ADs \n\n\n\tThis AD replaces AD 2015-08-01, Amendment 39-18137 (80 FR 21645, April 20, 2015) (''AD 2015-08-01''). \n\n(c) Applicability \n\n\n\tThis AD applies to The Boeing Company Model 757-200, -200PF, - 200CB, and -300 series airplanes, certificated in any category, as identified inBoeing Alert Service Bulletin 757-27A0157, dated December 18, 2017. \n\n(d) Subject \n\n\n\tAir Transport Association (ATA) of America Code 27, Flight controls. \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by a report of a momentary uncommanded spoiler movement during flap configuration just before landing that occurred on an airplane on which the actions required by AD 2015-08- 01 had been done. We are issuing this AD to prevent a failure condition that can cause an uncommanded spoiler movement resulting in loss of controllability of the airplane during the approach phase of flight. \n\n(f) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(g) Required Actions \n\n\n\t(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 \n\n((Page 61678)) \n\nAccomplishment Instructions of Boeing Alert Service Bulletin 757- 27A0157, dated December 18, 2017. \n\t(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. \n\n(h) Prohibited Modification \n\n\n\tAs of the effective date of this AD, do not accomplish the actions specified in Boeing Service Bulletin 757-27A0152 on any airplane. \n\n(i) Alternative Methods of Compliance (AMOCs) \n\n\n\t(1) The Manager, Los Angeles ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j) of this AD. Information may be emailed to [email protected]. \n\t(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. \n\t(3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Los Angeles ACO Branch, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. \n\t(4) AMOCs approved previously for AD 2015-08-01 are not approved as AMOCs for any provision in this AD. \n\t(5) For service information that contains steps that are labeled as RC, the provisions of paragraphs (i)(5)(i) and (i)(5)(ii) of this AD apply. \n\t(i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. If a step or substep is labeled ''RC Exempt,'' then the RC requirement is removed from that step or substep. An AMOC is required for any deviations to RC steps, including substeps and identified figures. \n\t(ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. \n\n(j) Related Information \n\n\n\tFor more information about this AD, contact Myra Kuck, Aerospace Engineer, Cabin Safety, Mechanical & Environmental Systems Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5316; fax: 562-627-5210; email: [email protected]. \n\n(k) Material Incorporated by Reference \n\n\n\t(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. \n\t(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. \n\t(i) Boeing Alert Service Bulletin 757-27A0157, dated December 18, 2017. \n\t(ii) Reserved. \n\t(3) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740- 5600; telephone 562-797-1717; internet https://www.myboeingfleet.com. \n\t(4) You may view this service information at the FAA, Transport Standards Branch, 1601 Lind Avenue SW, Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. \n\t(5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

Related safety bulletins advice on the same designs, not orders

2026-04-062026-09 · HYDRAULIC POWER, Hydraulic Power Transfer Unit System
2025-02-212025-02 · DOORS, Main Deck Cargo Door
2025-01-142025-01 · HYDRAULIC POWER SYSTEM, Fatigue Failure of Hydraulic Flexible Hoses
2020-04-16NM-20-07 · Navigation - Glideslope System
2019-02-19NE-19-03 · Escape Slide Maintenance Tasks and Intervals - JASC 2565

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2017-26-10.json · aircraft systems.