Proposed Rule2023-16874
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
August 9, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by reports that the nose wheel steering selector valve (SSV) can be slow to deactivate under low temperature conditions. This proposed AD would require replacing the affected SSV with a re-designed SSV that has an improved response time. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 88 Issue 152 (Wednesday, August 9, 2023)</title>
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[Federal Register Volume 88, Number 152 (Wednesday, August 9, 2023)]
[Proposed Rules]
[Pages 53823-53827]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-16874]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1706; Project Identifier MCAI-2023-00039-T]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11
airplanes. This proposed AD was prompted by reports that the nose wheel
steering selector valve (SSV) can be slow to
[[Page 53824]]
deactivate under low temperature conditions. This proposed AD would
require replacing the affected SSV with a re-designed SSV that has an
improved response time. The FAA is proposing this AD to address the
unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by September
25, 2023.
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://regulations.gov">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.
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1706; or in person at Docket Operations between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD
docket contains this NPRM, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
street address for Docket Operations is listed above.
Material Incorporated by Reference:
<bullet> For Bombardier, Inc., service information identified in
this NPRM, contact Bombardier Business Aircraft Customer Response
Center, 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9,
Canada; telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#0f6e6c21767a634f6e6a7d6021336e2f677d6a6932" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>;
website <a href="http://bombardier.com">bombardier.com</a>.
<bullet> You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195.
FOR FURTHER INFORMATION CONTACT: Chirayu Gupta, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#b58c98d4c3c698dbccd4d6da98d6dac6f5d3d4d49bd2dac3"><span class="__cf_email__" data-cfemail="7e47531f080d5310071f1d11531d110d3e181f1f50191108">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2023-1706; Project Identifier
MCAI-2023-00039-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
the proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Chirayu Gupta, Aviation Safety Engineer, FAA, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#330a1e5245401e5d4a52505c1e505c40735552521d545c45"><span class="__cf_email__" data-cfemail="586175392e2b753621393b37753b372b183e3939763f372e">[email protected]</span></a>. Any commentary that the FAA receives which is not
specifically designated as CBI will be placed in the public docket for
this rulemaking.
Background
Transport Canada, which is the aviation authority for Canada, has
issued Transport Canada AD CF-2023-02, dated January 11, 2023 (TC AD
CF-2023-02) (also referred to after this as the MCAI), to correct an
unsafe condition on certain Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11 airplanes. The MCAI states that following a runway excursion
on a different model, an investigation revealed that the nose wheel SSV
can be slow to deactivate under low temperature conditions. A similar
SSV is installed on the airplanes to which this AD is applicable. In
the event of an un-commanded steering input, a slow SSV deactivation
could lead to a delayed transition to free caster mode and result in an
aircraft runway excursion.
The FAA is proposing this AD to address the unsafe condition on
these products.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1706.
Related Service Information Under 1 CFR Part 51
The FAA reviewed the following Bombardier service information.
<bullet> Service Bulletin 700-32-044, Revision 01, dated December
7, 2022.
<bullet> Service Bulletin 700-32-6021, Revision 01, dated December
7, 2022.
<bullet> Service Bulletin 700-32-6507, Revision 01, dated December
7, 2022.
<bullet> Service Bulletin 700-1A11-32-031, Revision 01, dated
December 7, 2022.
<bullet> Service Bulletin 700-32-5021, Revision 01, dated December
7, 2022.
<bullet> Service Bulletin 700-32-5507, Revision 01, dated December
7, 2022.
This service information specifies procedures for replacing the
affected SSV with a re-designed SSV. These documents are distinct since
they apply to different airplane configurations. 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
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to the FAA's bilateral agreement with this State of Design Authority,
it has notified the FAA of the unsafe condition described in the MCAI
and service information referenced above. The FAA is issuing this NPRM
after determining that the unsafe condition described previously is
likely to exist or develop on other products of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in the service information already described.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 442 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
[[Page 53825]]
Estimated Costs for Required Actions
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Cost per
Labor cost Parts cost product Cost on U.S. operators
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4 work-hours x $85 per hour = $340.... $5,542 $5,882 Up to $2,599,844.
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The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this proposed AD may be covered under warranty, thereby reducing the
cost impact on affected operators.
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.
The FAA is 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.
Regulatory Findings
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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 adding the following new airworthiness
directive:
Bombardier, Inc.: Docket No. FAA-2023-1706; Project Identifier MCAI-
2023-00039-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 25, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the Bombardier, Inc., airplanes, certificated
in any category, identified in paragraphs (c)(1) through (6) of this
AD.
(1) Model BD-700-1A10 airplanes, as identified in Bombardier
Service Bulletin 700-32-044, Revision 01, dated December 7, 2022.
(2) Model BD-700-1A10 airplanes, as identified in Bombardier
Service Bulletin 700-32-6021, Revision 01, dated December 7, 2022.
(3) Model BD-700-1A10 airplanes, as identified in Bombardier
Service Bulletin 700-32-6507, Revision 01, dated December 7, 2022.
(4) Model BD-700-1A11 airplanes, as identified in Bombardier
Service Bulletin 700-1A11-32-031, Revision 01, dated December 7,
2022.
(5) Model BD-700-1A11 airplanes, as identified in Bombardier
Service Bulletin 700-32-5021, Revision 01, dated December 7, 2022.
(6) Model BD-700-1A11 airplanes, as identified in Bombardier
Service Bulletin 700-32-5507, Revision 01, dated December 7, 2022.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
gear.
(e) Unsafe Condition
This AD was prompted by reports that the nose wheel steering
selector valve (SSV) can be slow to deactivate under low temperature
conditions. The FAA is issuing this AD to address a possible delayed
transition to free caster mode in the event of an un-commanded
steering input. The unsafe condition, if not addressed, could result
in an aircraft runway excursion.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Action
Within 66 months or 3,200 flight hours, whichever occurs first
after the effective date of this AD: Replace SSV part number (P/N)
23600-101 with SSV P/N 23600-103 in accordance with the
Accomplishment Instructions of the applicable Bombardier service
bulletin listed in figure 1 to paragraph (g) of this AD.
[[Page 53826]]
[GRAPHIC] [TIFF OMITTED] TP09AU23.028
(h) Credit for Previous Actions
This paragraph provides credit for actions required by paragraph
(g) of this AD, if those actions were performed before the effective
date of this AD using the applicable Bombardier service bulletin
listed in figure 2 to paragraph (h) of this AD.
[GRAPHIC] [TIFF OMITTED] TP09AU23.029
(i) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Validation 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 responsible Flight Standards Office, as
appropriate. If sending information directly to the manager of the
International Validation Branch, mail it to ATTN: Program Manager,
Continuing Operational Safety, at the address identified in
paragraph (j)(2) of this AD or email to: <a href="/cdn-cgi/l/email-protection#cef7e38f989de38f879ce3f9fdfee38f83818d8ea8afafe0a9a1b8"><span class="__cf_email__" data-cfemail="c8f1e5899e9be589819ae5fffbf8e58985878b88aea9a9e6afa7be">[email protected]</span></a>.
If mailing information, also submit information by email. Before
using any approved AMOC, notify your appropriate principal
inspector, or lacking a principal inspector, the manager of the
responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, International
Validation Branch, FAA; or Transport Canada or Bombardier, Inc.'s
Transport Canada Design Approval Organization (DAO). If approved by
the DAO, the approval must include the DAO-authorized signature.
(j) Additional Information
(1) Refer to Transport Canada AD CF-2023-02, dated January 11,
2023, for related information. This Transport Canada AD may be found
in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1706.
(2) For more information about this AD, contact Chirayu Gupta,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#c6ffeba7b0b5eba8bfa7a5a9eba5a9b586a0a7a7e8a1a9b0"><span class="__cf_email__" data-cfemail="7f46521e090c5211061e1c10521c100c3f191e1e51181009">[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 this AD specifies otherwise.
(i) Bombardier Service Bulletin 700-32-044, Revision 01, dated
December 7, 2022.
(ii) Bombardier Service Bulletin 700-32-6021, Revision 01, dated
December 7, 2022.
(iii) Bombardier Service Bulletin 700-32-6507, Revision 01,
dated December 7, 2022.
(iv) Bombardier Service Bulletin 700-1A11-32-031, Revision 01,
dated December 7, 2022.
(v) Bombardier Service Bulletin 700-32-5021, Revision 01, dated
December 7, 2022.
(vi) Bombardier Service Bulletin 700-32-5507, Revision 01, dated
December 7, 2022.
(3) For service information identified in this AD, contact
Bombardier Business Aircraft Customer Response Center, 400
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada;
telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#5c3d3f722529301c3d392e3372603d7c342e393a61" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website
<a href="http://bombardier.com">bombardier.com</a>.
(4) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call 206-231-3195.
(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,
[[Page 53827]]
email <a href="/cdn-cgi/l/email-protection#6b0d19450205181b0e081f0204052b050a190a450c041d"><span class="__cf_email__" data-cfemail="573125793e3924273234233e3839173936253679303821">[email protected]</span></a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on August 1, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-16874 Filed 8-8-23; 8:45 am]
BILLING CODE 4910-13-P
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