AD 2017-26-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Various | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
An uncommanded spoiler movement during flap configuration just before landing, which could result in loss of controllability of the airplane during the approach phase of flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Deactivating the spoiler control module relays and capping and stowing the associated wiring.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model 757 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
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.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
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.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 82, Number 249 (Friday, December 29, 2017)]
[Rules and Regulations]
[Pages 61675-61678]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2017-28158]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-1179; Product Identifier 2017-NM-177-AD; Amendment
39-19141; AD 2017-26-10]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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SUMMARY: 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
[[Page 61676]]
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.
DATES: This AD is effective January 3, 2018.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 3,
2018.
We must receive comments on this AD by February 12, 2018.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this final rule, 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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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. It is also available on
the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2017-1179.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2017-
1179; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this final rule, the regulatory evaluation, any comments
received, and other information. The street address for the Docket
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will
be available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION 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: <a href="/cdn-cgi/l/email-protection#713c0803105f3b5f3a04121a311710105f161e07"><span class="__cf_email__" data-cfemail="81ccf8f3e0afcbafcaf4e2eac1e7e0e0afe6eef7">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Discussion
We issued AD 2015-08-01, Amendment 39-18137 (80 FR 21645, April 20,
2015) (``AD 2015-08-01''), for certain 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. AD 2015-08-01 resulted from numerous reports of unintended
lateral oscillations during final approach, just before landing. We
issued AD 2015-08-01 to reduce the chance of unintended lateral
oscillations near touchdown, which could result in loss of lateral
control of the airplane, and consequent airplane damage or injury to
flight crew and passengers.
Actions Since AD 2015-08-01 Was Issued
Since we issued AD 2015-08-01, we have received a report of a
momentary uncommanded spoiler movement during flap configuration just
before landing, on a Model 757 airplane that had been inspected and
modified in accordance with AD 2015-08-01. AD 2015-08-01 requires
accomplishment of Boeing Service Bulletin 757-27A0152, which is
intended to reduce the chance of a pilot-induced oscillation (PIO)
during quick flight maneuvers, such as the final phase of approach in
strong wind conditions, by preventing the deployment, during landing
operations, of spoiler pairs 1 and 12, and 5 and 8. Boeing's subsequent
investigation of Boeing Service Bulletin 757-27A0152 found that a
switch in one of the relays added by that service information had
failed to an electrically open position. We are issuing this AD to
correct the unsafe condition on these products.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Alert Service Bulletin 757-27A0157, dated
December 18, 2017. The service information describes procedures for
deactivating the spoiler control module relays and capping and stowing
the associated wiring. This service information is reasonably available
because the interested parties have access to it through their normal
course of business or by the means identified in the ADDRESSES section.
FAA's Determination
We are issuing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
AD Requirements
This AD retains none of the requirements of AD 2015-08-01. This AD
requires accomplishment of the actions identified as ``RC'' (required
for compliance) in the Accomplishment Instructions of Boeing Alert
Service Bulletin 757-27A0157, dated December 18, 2017, described
previously. For information on the procedures and compliance times, see
this service information at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for
and locating Docket No. FAA-2017-1179.
Interim Action
We consider this AD interim action. If final action is later
identified, we might consider further rulemaking then.
FAA's Justification and Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD without providing an opportunity for public comments prior to
adoption. The FAA has found that the risk to the flying public
justifies waiving notice and comment prior to adoption of this rule
because failure to deactivate the spoiler control module relays and cap
and stow associated wiring can result in a failure condition that can
cause an uncommanded spoiler movement
[[Page 61677]]
resulting in loss of controllability of the airplane during the
approach phase of flight. Therefore, we find good cause that notice and
opportunity for prior public comment are impracticable. In addition,
for the reason stated above, we find that good cause exists for making
this amendment effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety and was not preceded by notice and an opportunity for public
comment. However, we invite you to send any written data, views, or
arguments about this final rule. Send your comments to an address
listed under the ADDRESSES section. Include the docket number FAA-2017-
1179 and Product Identifier 2017-NM-177-AD at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this final rule. We will
consider all comments received by the closing date and may amend this
final rule because of those comments.
We will post all comments we receive, without change, to <a href="http://www.regulations.gov">http://www.regulations.gov</a>, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this final rule.
Costs of Compliance
We estimate that this AD affects 626 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Deactivating spoiler control module 14 work-hours x $85 per $1,380 $2,570 *
relay. hour = $1,190.
----------------------------------------------------------------------------------------------------------------
* Based on our estimate of 169 airplanes that are in compliance with the requirements of AD 2015-08-01 and
subject to the deactivation requirements of this AD, the total fleet cost for this AD is approximately
$434,330.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to transport category airplanes to
the Director of the System Oversight Division.
Regulatory Findings
We have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
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:
2017-26-10 The Boeing Company: Amendment 39-19141; Docket No. FAA-
2017-1179; Product Identifier 2017-NM-177-AD.
(a) Effective Date
This AD is effective January 3, 2018.
(b) Affected ADs
This AD replaces AD 2015-08-01, Amendment 39-18137 (80 FR 21645,
April 20, 2015) (``AD 2015-08-01'').
(c) Applicability
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.
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight
controls.
(e) Unsafe Condition
This 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.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(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
[[Page 61678]]
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.
(h) Prohibited Modification
As of the effective date of this AD, do not accomplish the
actions specified in Boeing Service Bulletin 757-27A0152 on any
airplane.
(i) Alternative Methods of Compliance (AMOCs)
(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 <a href="/cdn-cgi/l/email-protection#f1c8dcb0bfbcdcbdb0b0b2bedcb0bcbeb2dca394808494828582b1979090df969e87"><span class="__cf_email__" data-cfemail="695044282724442528282a26442824262a443b0c181c0c1a1d1a290f0808470e061f">[email protected]</span></a>.
(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.
(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.
(4) AMOCs approved previously for AD 2015-08-01 are not approved
as AMOCs for any provision in this AD.
(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.
(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.
(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.
(j) Related Information
For 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:
<a href="/cdn-cgi/l/email-protection#55182c27347b1f7b1e20363e153334347b323a23"><span class="__cf_email__" data-cfemail="99d4e0ebf8b7d3b7d2ecfaf2d9fff8f8b7fef6ef">[email protected]</span></a>.
(k) Material Incorporated by Reference
(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.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Alert Service Bulletin 757-27A0157, dated December
18, 2017.
(ii) Reserved.
(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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
(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.
(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: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Renton, Washington, on December 22, 2017.
John P. Piccola, Jr.,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2017-28158 Filed 12-28-17; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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