Proposed Rule2022-25117
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Primary source
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Published
November 18, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600- 2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by reports from the supplier that sensing elements of the bleed air leak detection system were manufactured with insufficient salt fill, which can result in an inability to detect hot bleed air leaks. This proposed AD would require testing of all affected overheat detection sensing elements of the bleed air leak detection system, and replacement if necessary. This proposed AD would also prohibit the installation of affected parts. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 222 (Friday, November 18, 2022)</title>
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[Federal Register Volume 87, Number 222 (Friday, November 18, 2022)]
[Proposed Rules]
[Pages 69210-69214]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-25117]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1474; Project Identifier MCAI-2022-00888-T]
RIN 2120-AA64
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate
Previously Held by 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 MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series
100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-
2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705),
CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet
Series 1000) airplanes. This proposed AD was prompted by reports from
the supplier that sensing elements of the bleed air leak detection
system were manufactured with insufficient salt fill, which can result
in an inability to detect hot bleed air leaks. This proposed AD would
require testing of all affected overheat detection sensing elements of
the bleed air leak detection system, and replacement if necessary. This
proposed AD would also prohibit the installation of affected parts. 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 January 3,
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.
[[Page 69211]]
<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-2022-1474; 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 service information identified in this NPRM, contact
MHI RJ Aviation Group, Customer Response Center, 3655 Ave. des Grandes-
Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada; North
America toll-free telephone 833-990-7272 or direct-dial telephone 450-
990-7272; fax 514-855-8501; email <a href="/cdn-cgi/l/email-protection#47332f236924352d077b26672f3522217a" http: mhirj.com">mhirj.com</a>">thd.crj@<a href="http://mhirj.com">mhirj.com</a></a>; website <a href="http://mhirj.com">mhirj.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: Thomas Niczky, Aerospace Engineer,
Avionics & Electrical Systems Section, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7347;
email <a href="/cdn-cgi/l/email-protection#063f2b6770752b687f6765692b6569754660676728616970"><span class="__cf_email__" data-cfemail="8bb2a6eafdf8a6e5f2eae8e4a6e8e4f8cbedeaeaa5ece4fd">[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-2022-1474; Project Identifier
MCAI-2022-00888-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
Thomas Niczky, Aerospace Engineer, Avionics & Electrical Systems
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7347; email <a href="/cdn-cgi/l/email-protection#9da4b0fcebeeb0f3e4fcfef2b0fef2eeddfbfcfcb3faf2eb"><span class="__cf_email__" data-cfemail="e2dbcf839491cf8c9b83818dcf818d91a2848383cc858d94">[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 Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2022-16R1, dated July 5,
2022 (TCCA AD CF-2022-16R1) (also referred to after this as the MCAI),
to correct an unsafe condition on Model CL-600-2B19 (Regional Jet
Series 100 & 440), CL-600-2C10 (Regional Jet Series 700, 701 & 702),
CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series
705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional
Jet Series 1000) airplanes. The MCAI states that MHI RJ Aviation ULC
received reports from the supplier of the overheat detection sensing
elements of a manufacturing quality escape. Some of the sensing
elements of the bleed air leak detection system were manufactured with
insufficient salt fill, which can result in an inability to detect hot
bleed air leaks and cause damage to surrounding structures and systems
that can prevent continued safe flight and landing.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1474.
Related Service Information Under 1 CFR Part 51
The FAA reviewed MHI RJ Service Bulletin 601R-36-021, Revision D,
dated May 25, 2022; including Appendix A, Revision B, dated March 14,
2022; and MHI RJ Service Bulletin 670BA-36-025, Revision C, dated May
25, 2022; including Appendix A, Revision B, dated Mar 14, 2022;
Appendix B, dated October 21, 2021; and Appendix C, dated March 14,
2022. This service information specifies procedures for testing
affected bleed air leak detection system sensing elements (i.e., those
marked with a date code before ``A2105'' (which corresponds to January
31, 2021), with a part number defined in this service information) to
determine if they are serviceable, and replacing failed sensing
elements with serviceable ones. This service information also allows
deferring the replacement of an affected part under certain conditions
and allows operating the airplane with certain deactivated defective
sensing elements. These documents are distinct since they apply to
different airplane models. 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 described 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. This proposed AD would
also prohibit the installation of affected parts.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 1,126 airplanes of U.S. registry. The FAA estimates the
following costs to comply with this proposed AD:
[[Page 69212]]
Estimated Costs for Required Actions
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Cost per Cost on U.S.
Model Labor cost Parts cost product operators
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Model CL-600-2B19 (526 airplanes)..... 29 work hours x $85 per $0 $2,465 $1,296,590
hour = $2,465.
Model CL-600-2C10 and CL-600-2C11, CL- 82 work hours x $85 per 0 6,970 4,182,000
600-2D15 and CL-600-2D24, and CL-600- hour = $6,970.
2E25 (600 airplanes).
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The FAA estimates the following costs to do any necessary on-
condition actions that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need these on-condition actions:
Estimated Costs of On-Condition Actions
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Model/serial No. (S/Ns) Labor cost Parts cost Cost per product
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CL-600-2B19, S/Ns 7002-7323...... Up to 26 work-hours Up to $113,200............. Up to $115,410.
x $85 per hour =
$2,210.
CL-600-2B19, S/Ns 7324-8113...... Up to 24 work-hours Up to $100,598............. Up to $102,638.
x $85 per hour =
$2,040.
CL-600-2C10 and CL-600-2C11, S/Ns Up to 54 work-hours Up to $70,758.............. Up to $75,348.
10002-10347. x $85 per hour =
$4,590.
CL-600-2D15 and CL-600-2D24, S/Ns Up to 58 work-hours Up to $74,598.............. Up to $79,528.
15001-15494. x $85 per hour =
$4,930.
CL-600-2E25, S/Ns 19001-19064.... Up to 62 work-hours Up to $81,478.............. Up to $86,748.
x $85 per hour =
$5,270.
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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:
MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier,
Inc.): Docket No. FAA-2022-1474; Project Identifier MCAI-2022-00888-
T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by January 3, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to MHI RJ Aviation ULC airplanes, certificated
in any category, and identified in paragraphs (c)(1) through (4) of
this AD.
(1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes,
serial numbers 7002 through 7990 inclusive, and 8000 through 8113
inclusive.
(2) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) and
CL-600-2C11 (Regional Jet Series 550) airplanes, serial numbers
10002 through 10347 inclusive.
(3) Model CL-600-2D15 (Regional Jet Series 705) and Model CL-
600-2D24 (Regional Jet Series 900) airplanes, serial numbers 15001
through 15494 inclusive.
(4) Model CL-600-2E25 (Regional Jet Series 1000), serial numbers
19001 through 19064 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 36, Pneumatic.
(e) Unsafe Condition
This AD was prompted by reports that sensing elements of the
bleed air leak detection system were manufactured with insufficient
salt fill. The FAA is issuing this AD to address insufficient salt
fill, which can result in an inability to detect hot bleed air
leaks, which can cause damage to surrounding structures and systems
that can prevent continued safe flight and landing.
[[Page 69213]]
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Definitions
For the purposes of this AD, the definitions specified in
paragraphs (g)(1) through (4) apply.
(1) Group 1 airplanes: The airplanes identified in paragraph
(c)(1) of this AD.
(2) Group 2 airplanes: The airplanes identified in paragraphs
(c)(2) through (4) of this AD.
(3) Affected part: A sensing element marked with a date code
before A2105 and having a part number as defined in Section 1,
Paragraph G(1), of MHI RJ Service Bulletin 601R-36-021, Revision D,
dated May 25, 2022, for Group 1 airplanes, and in Appendix B, dated
October 21, 2021, of MHI RJ Service Bulletin 670BA-36-025, Revision
C, dated May 25, 2022, for Group 2 airplanes, unless the sensing
element has been tested and found to be serviceable in accordance
with paragraphs (g)(3)(i) and (ii) or paragraph (h) of this AD.
(i) Has been tested in accordance with Section 3 of the
Accomplishment Instructions of Kidde Aerospace and Defense Service
Bulletin CFD-26-5 and found to be serviceable; and
(ii) Has been marked on one face of its connector hex nut and is
packaged in accordance with Section 3.C. of the Accomplishment
Instructions--Identification Procedure of the Kidde Aerospace and
Defense Service Bulletin CFD-26-5.
(4) Serviceable part: A sensing element that is not an affected
part.
(h) Testing
Perform a test of the bleed air leak detection system sensing
elements to determine if they are serviceable, in accordance with
Section 2, Part A through Part F, of the Accomplishment Instructions
of MHI RJ Service Bulletin 601R-36-021, Revision D, dated May 25,
2022, for Group 1 airplanes; and Section 2, Part A through Part M,
of the Accomplishment Instructions of MHI RJ Service Bulletin 670BA-
36-025, Revision C, dated May 25, 2022, for Group 2 airplanes;
within the applicable compliance time indicated in figure 1 to
paragraph (h) of this AD.
Figure 1 to Paragraph (h)--Compliance Time
[GRAPHIC] [TIFF OMITTED] TP18NO22.708
(i) Replacement
(1) For Group 1 airplanes: If any sensing element is found not
serviceable during the tests required by paragraph (h) of this AD,
before further flight, replace the sensing element with a
serviceable part in accordance with Section 2, Part A through Part
F, as applicable, of the Accomplishment Instructions of MHI RJ
Service Bulletin 601R-36-021, Revision D, dated May 25, 2022.
(2) For Group 2 airplanes: If any sensing element is found not
serviceable during the tests required by paragraph (h) of this AD,
before further flight, unless deferred in accordance with paragraph
(j) of this AD, replace the sensing element with a serviceable part
in accordance with Section 2, Part A through Part M, as applicable,
of the Accomplishment Instructions of MHI RJ Service Bulletin 670BA-
36-025, Revision C, dated May 25, 2022.
(j) Deferred Replacement for Group 2 Airplanes
The replacement of an affected part with a serviceable part for
Group 2 airplanes, as required by paragraph (i)(2) of this AD, may
be deferred up to a maximum of 10 days under the conditions
specified in paragraphs (j)(1) or (2) of this AD.
(1) A single bleed air leak detection loop (loop A or loop B)
sensing element for a given Part (Part A through Part M of MHI RJ
Service Bulletin 670BA-36-025, Revision C, dated May 25, 2022) is
found not serviceable, provided that the conditions specified in
paragraphs (j)(1)(i) through (iv) of this AD have been satisfied.
(i) The remaining operative bleed air leak detection loop (loop
A or loop B) sensing elements have been tested and found to be
serviceable in accordance with paragraph (h) of this AD.
(ii) The applicable maintenance procedures of Appendix C, dated
March 14, 2022, of MHI RJ Service Bulletin 670BA-36-025, Revision C,
dated May 25, 2022, to deactivate the defective sensing element are
accomplished prior to operation of the airplane with the defective
sensing element inoperative.
(iii) A placard has been installed on the BLEED AIR control
panel in accordance with Section 2, Part A through Part M, as
applicable, of the Accomplishment Instructions of MHI RJ Service
Bulletin 670BA-36-025, Revision C, dated May 25, 2022.
(iv) All flightcrew have been advised that the airplane is
dispatched with one out of two bleed air leak detection loops
inoperative.
[[Page 69214]]
(2) Both bleed air leak detection loop A and loop B sensing
elements for a given part (Part A through Part M of MHI RJ Service
Bulletin 670BA-36-025, Revision C, dated May 25, 2022) are found not
serviceable, provided that the conditions specified in paragraphs
(j)(2)(i) through (iv) of this AD have been satisfied.
(i) The applicable maintenance procedures of Appendix C, dated
March 14, 2022, of MHI RJ Service Bulletin 670BA-36-025, Revision C,
dated May 25, 2022, to deactivate the defective sensing elements are
accomplished prior to operation of the airplane with the defective
sensing elements inoperative.
(ii) The applicable instructions and limitations of the
operator's existing FAA-approved Minimum Equipment List (MEL) item
36-21-06, sub-item 1, 2, or 3, as applicable, in accordance with
Section 2, Part A through Part M, of the Accomplishment Instructions
of MHI RJ Service Bulletin 670BA-36-025, Revision C, dated May 25,
2022, are accomplished prior to operation of the airplane with the
defective sensing elements inoperative.
(iii) A placard has been installed on the BLEED AIR control
panel in accordance with Section 2, Part A through Part M, as
applicable, of the Accomplishment Instructions of MHI RJ Service
Bulletin 670BA-36-025, Revision C, dated May 25, 2022.
(iv) All flightcrew have been advised that the airplane is
dispatched with both bleed air leak detection loops inoperative.
(k) Parts Installation Prohibition
As of the effective date of this AD, no person may install an
affected part on any airplane.
(l) Credit for Previous Actions
This paragraph provides credit for actions required by
paragraphs (h), (i), and (j) of this AD, if those actions were
performed before the effective date of this AD using the service
information specified in paragraphs (l)(1) and (2) of this AD. For
performing the actions specified in the service information for the
Group 1 airplanes: If the sensing element was found not serviceable,
replacement is required before further flight; deferred replacement
of an affected part is prohibited. For performing the actions
specified in the service information for the Group 2 airplanes: If
the sensing element was found not serviceable, deferred replacement
of the affected part is acceptable, as specified in paragraph (j) of
this AD.
(1) For Group 1 airplanes:
(i) MHI RJ Service Bulletin 601R-36-021, dated July 5, 2021.
(ii) MHI RJ Service Bulletin 601R-36-021, Revision A, dated
October 21, 2021.
(iii) MHI RJ Service Bulletin 601R-36-021, Revision B, dated
December 2, 2021.
(iv) MHI RJ Service Bulletin 601R-36-021, Revision C, dated
March 14, 2022.
(2) For Group 2 airplanes:
(i) MHI RJ Service Bulletin 670BA-36-025, dated July 5, 2021.
(ii) MHI RJ Service Bulletin 670BA-36-025, Revision A, dated
October 21, 2021.
(iii) MHI RJ Service Bulletin 670BA-36-025, Revision B, dated
March 14, 2022.
(m) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York 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 responsible Flight Standards Office, as appropriate. If
sending information directly to the manager of the New York ACO
Branch, mail it to ATTN: Program Manager, Continuing Operational
Safety, at the address identified in paragraph (n)(2) of this AD or
email to: <a href="/cdn-cgi/l/email-protection#82bbafe3f4f1afecfbe3e1edafe1edf1c2e4e3e3ace5edf4"><span class="__cf_email__" data-cfemail="dee7f3bfa8adf3b0a7bfbdb1f3bdb1ad9eb8bfbff0b9b1a8">[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, New York ACO
Branch, FAA; or Transport Canada Civil Aviation (TCCA); or MHI RJ
Aviation ULC's TCCA Design Approval Organization (DAO). If approved
by the DAO, the approval must include the DAO-authorized signature.
(n) Additional Information
(1) Refer to Transport Canada Civil Aviation (TCCA) AD CF-2022-
16R1, dated July 5, 2022, for related information. This TCCA AD may
be found in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-
2022-1474.
(2) For more information about this AD, contact Thomas Niczky,
Aerospace Engineer, Avionics & Electrical Systems Section, FAA, New
York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7347; email <a href="/cdn-cgi/l/email-protection#d3eafeb2a5a0febdaab2b0bcfeb0bca093b5b2b2fdb4bca5"><span class="__cf_email__" data-cfemail="e3dace829590ce8d9a82808cce808c90a3858282cd848c95">[email protected]</span></a>.
(o) 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) MHI RJ Service Bulletin 601R-36-021, Revision D, dated May
25, 2022.
(ii) MHI RJ Service Bulletin 670BA-36-025, Revision C, dated May
25, 2022.
(3) For service information identified in this AD, contact MHI
RJ Aviation Group, Customer Response Center, 3655 Ave. des Grandes-
Tourelles, Suite 110, Boisbriand, Qu[eacute]bec J7H 0E2 Canada;
North America toll-free telephone 833-990-7272 or direct-dial
telephone 450-990-7272; fax 514-855-8501; email <a href="/cdn-cgi/l/email-protection#017569652f62736b413d6021697364673c" http: mhirj.com">mhirj.com</a>">thd.crj@<a href="http://mhirj.com">mhirj.com</a></a>;
website <a href="http://mhirj.com">mhirj.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, email <a href="/cdn-cgi/l/email-protection#86e0f4a8efe8f5f6e3e5f2efe9e8c6e8e7f4e7a8e1e9f0"><span class="__cf_email__" data-cfemail="5d3b2f7334332e2d383e293432331d333c2f3c733a322b">[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 November 9, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-25117 Filed 11-17-22; 8:45 am]
BILLING CODE 4910-13-P
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