Rule2024-03047
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
February 15, 2024
Effective
March 21, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report of a steering control unit (SCU) filter plate connector that does not meet the certification requirements for exposure of electronic components to high intensity radiated field environments, which could result in malfunction of the nose wheel steering (NWS) system. This AD requires determining if the SCU is an affected SCU, replacing all affected SCUs, and rigging and testing the NWS control. This AD also prohibits installing an affected SCU on any airplane. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 89 Issue 32 (Thursday, February 15, 2024)</title>
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[Federal Register Volume 89, Number 32 (Thursday, February 15, 2024)]
[Rules and Regulations]
[Pages 11722-11726]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-03047]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-2145; Project Identifier MCAI-2023-00358-T;
Amendment 39-22660; AD 2024-01-09]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
[[Page 11723]]
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by
a report of a steering control unit (SCU) filter plate connector that
does not meet the certification requirements for exposure of electronic
components to high intensity radiated field environments, which could
result in malfunction of the nose wheel steering (NWS) system. This AD
requires determining if the SCU is an affected SCU, replacing all
affected SCUs, and rigging and testing the NWS control. This AD also
prohibits installing an affected SCU on any airplane. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective March 21, 2024.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of March 21,
2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-2145; 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 final rule, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
<bullet> For service information identified in this final rule,
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#0b6a6825727e674b6a6e796425376a2b63796e6d36" 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. It is also available at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-2145.
FOR FURTHER INFORMATION CONTACT: William Reisenauer, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7301; email <a href="/cdn-cgi/l/email-protection#b98094d8cfca94d7c0d8dad694dad6caf9dfd8d897ded6cf"><span class="__cf_email__" data-cfemail="cff6e2aeb9bce2a1b6aeaca0e2aca0bc8fa9aeaee1a8a0b9">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Bombardier, Inc.,
Model BD-100-1A10 airplanes. The NPRM published in the Federal Register
on November 13, 2023 (88 FR 77538). The NPRM was prompted by AD CF-
2023-13, dated February 24, 2023, issued by Transport Canada, which is
the aviation authority for Canada (referred to after this as the MCAI).
The MCAI states that the manufacturer of SCU part number (P/N) 46000-01
introduced a new filter plate connector that does not meet the
certification requirements related to the susceptibility of electronic
components to high intensity radiated field. According to the MCAI,
this non-compliant filter plate connector, if not replaced, could
result in a malfunction of the NWS system and cause un-commanded
steering or lateral excursion from the runway.
In the NPRM, the FAA proposed to require determining if the SCU is
an affected SCU, replacing all affected SCUs, and rigging and testing
the NWS control. In the NPRM, the FAA also proposed to prohibit
installing an affected SCU on any airplane. The FAA is issuing 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-2023-2145.
Discussion of Final Airworthiness Directive
Comments
The FAA received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
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
referenced above. The FAA reviewed the relevant data and determined
that air safety requires adopting this AD as proposed. Accordingly, the
FAA is issuing this AD to address the unsafe condition on this product.
Except for minor editorial changes, this AD is adopted as proposed in
the NPRM. None of the changes will increase the economic burden on any
operator.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Bombardier Service Bulletin 100-32-34, dated
October 18, 2021, and Bombardier Service Bulletin 350-32-010, dated
October 18, 2021. This service information specifies procedures for
determining the serial number of SCU P/N 46000-01, replacing any
affected SCU, and rigging and testing the NWS control. These documents
are distinct since they apply to different airplane serial numbers.
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.
Costs of Compliance
The FAA estimates that this AD affects 725 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
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Cost per Cost on U.S.
Labor cost Parts cost product operators
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9 work-hours x $85 per hour = $765........................... $44,950 $45,715 $33,143,375
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The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some of the costs of this 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
[[Page 11724]]
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
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) Will not affect intrastate aviation in Alaska, and
(3) 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.
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 adding the following new airworthiness
directive:
2024-01-09 Bombardier, Inc.: Amendment 39-22660; Docket No. FAA-
2023-2145; Project Identifier MCAI-2023-00358-T.
(a) Effective Date
This airworthiness directive (AD) is effective March 21, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Bombardier, Inc., Model BD-100-1A10
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
gear.
(e) Unsafe Condition
This AD was prompted by a report of a steering control unit
(SCU) filter plate connector that does not meet the certification
requirements for exposure of electronic components to high intensity
radiated field environments. The FAA is issuing this AD to prevent
malfunction of the nose wheel steering (NWS) system. The unsafe
condition, if not addressed, could result in un-commanded steering
or lateral runway excursion.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection or Records Review
Within 24 months after the effective date of this AD: Inspect
the SCU to determine if SCU part number (P/N) 46000-01 with a serial
number listed in Figure 1 to paragraph (g) of this AD is installed
on the airplane. A review of the airplane maintenance records is
acceptable in lieu of the inspection if the SCU P/N and serial
number can be conclusively determined from that review. If an SCU P/
N 46000-01 with a serial number listed in Figure 1 to paragraph (g)
of this AD is not installed on the airplane, or if the SCU
identification plate is marked with SB100-32-030, then no further
action is required by this AD; however, the installation prohibition
in paragraph (i) of this AD still applies.
Figure 1 to Paragraph (g)--Affected SCU Serial Numbers
[[Page 11725]]
[GRAPHIC] [TIFF OMITTED] TR15FE24.018
(h) Replacement
For airplanes with SCU P/N 46000-01 with a serial number listed
in Figure 1 to paragraph (g) of this AD installed and not marked on
the SCU identification plate with SB100-32-030: Within 24 months
after the effective date of this AD, replace the SCU and rig and
test the NWS control, in accordance with the instructions in
paragraph (h)(1), (2), or (3) of this AD, as applicable.
(1) For airplane serial numbers 20001 through 20500 inclusive:
Steps 2.C.(1) and 2.C.(3) of Section 2.C., ``Part B--Modification,''
and Section 2.D., ``Testing,'' of the Accomplishment Instructions in
Bombardier Service Bulletin 100-32-34, dated October 18, 2021.
(2) For airplane serial numbers 20501 through 20893 inclusive:
Steps 2.C.(1) and 2.C.(3) of Section 2.C., ``Part B--Modification,''
and Section 2.D., ``Testing,'' of the Accomplishment Instructions in
Bombardier Service Bulletin 350-32-010, dated October 18, 2021.
(3) For airplane serial numbers 20894 and larger: 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.
(i) Parts Installation Prohibition
As of the effective date of this AD, do not install SCU P/N
46000-01 on any airplane if the serial number of the SCU is listed
in figure 1 to paragraph (g) of this AD, unless the SCU
identification plate has been marked with SB100-32-030.
(j) Additional AD Provisions
The following provisions also apply to this AD:
[[Page 11726]]
(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 the address identified
in paragraph (k)(2) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#d2ebffb3a4a1ffbcabb3b1bdffb1bda192b4b3b3fcb5bda4"><span class="__cf_email__" data-cfemail="a1988cc0d7d28ccfd8c0c2ce8cc2ced2e1c7c0c08fc6ced7">[email protected]</span></a>. 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.
(k) Additional Information
(1) Refer to Transport Canada AD CF-2023-13, dated February 24,
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-2023-2145.
(2) For more information about this AD, contact William
Reisenauer, Aviation Safety Engineer, FAA, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone 516-228-7301; email <a href="/cdn-cgi/l/email-protection#0e37236f787d2360776f6d61236d617d4e686f6f20696178"><span class="__cf_email__" data-cfemail="93aabef2e5e0befdeaf2f0fcbef0fce0d3f5f2f2bdf4fce5">[email protected]</span></a>.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference 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 100-32-34, dated October 18,
2021.
(ii) Bombardier Service Bulletin 350-32-010, dated October 18,
2021.
(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#ceafade0b7bba28eafabbca1e0f2afeea6bcaba8f3" 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 material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#8ceafea2e5e2fffce9eff8e5e3e2cce2edfeeda2ebe3fa"><span class="__cf_email__" data-cfemail="a6c0d488cfc8d5d6c3c5d2cfc9c8e6c8c7d4c788c1c9d0">[email protected]</span></a>.
Issued on January 9, 2024.
Caitlin Locke,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2024-03047 Filed 2-14-24; 8:45 am]
BILLING CODE 4910-13-P
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