Proposed Rule2022-10528
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by 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
May 17, 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-600-2C10 (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 laboratory tests that showed that the oxygen tubes of the crew oxygen system may be contaminated with lubricants, as a result of the manufacturing and cleaning procedures used. This proposed AD would require cleaning and flushing the crew oxygen system. 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 95 (Tuesday, May 17, 2022)</title>
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[Federal Register Volume 87, Number 95 (Tuesday, May 17, 2022)]
[Proposed Rules]
[Pages 29841-29843]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-10528]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0521; Project Identifier MCAI-2022-00273-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-600-2C10 (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 laboratory tests that showed that the oxygen tubes of the
crew oxygen system may be contaminated with lubricants, as a result of
the manufacturing and cleaning procedures used. This proposed AD would
require cleaning and flushing the crew oxygen system. 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 July 1,
2022.
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="https://www.regulations.gov">https://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 NPRM, contact MHI RJ
Aviation ULC, 12655 Henri-Fabre Blvd., Mirabel, Qu[eacute]bec J7N 1E1
Canada; Widebody Customer Response Center North America toll-free
telephone +1-844-272-2720 or direct-dial telephone +1-514-855-8500; fax
+1-514-855-8501; email <a href="/cdn-cgi/l/email-protection#a9ddc1cd87cadbc3e9c4c1c0dbc387cac6c4"><span class="__cf_email__" data-cfemail="0f7b676b216c7d654f6267667d65216c6062">[email protected]</span></a>; internet <a href="https://mhirj.com">https://mhirj.com</a>.
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.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0521; 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, any comments
received, and other information. The street address for Docket
Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Chirayu Gupta, Aerospace Engineer,
Mechanical Systems and Administrative Services Section, FAA, New York
ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#8fb6a2eef9fca2e1f6eeece0a2ece0fccfe9eeeea1e8e0f9"><span class="__cf_email__" data-cfemail="e6dfcb879095cb889f878589cb858995a6808787c8818990">[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-2022-0521; Project Identifier
MCAI-2022-00273-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="https://www.regulations.gov">https://www.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, Aerospace Engineer, Mechanical Systems and
Administrative Services Section, FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#e0d9cd819693cd8e9981838fcd838f93a0868181ce878f96"><span class="__cf_email__" data-cfemail="8ab3a7ebfcf9a7e4f3ebe9e5a7e9e5f9caecebeba4ede5fc">[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-2022-06, dated February 28,
2022 (TCCA AD CF-2022-06) (also referred to after this as the Mandatory
Continuing Airworthiness Information, or the MCAI), to correct an
unsafe condition for certain MHI RJ Aviation ULC Model 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. You
may examine the MCAI in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0521.
This proposed AD was prompted by laboratory tests that showed that
the oxygen tubes of the crew oxygen system may be contaminated with
lubricants, as a result of the inadvertent use of a non-conforming
aqueous degreasing process for oxygen line flushing and cleaning during
the manufacturing process. The FAA is proposing this AD to address the
contaminated oxygen tubes of the crew oxygen system, which could lead
to a
[[Page 29842]]
fire within the oxygen tubes, or a health hazard related to the
inhalation of lubricant fumes when the masks are in use. See the MCAI
for additional background information.
Related Service Information Under 1 CFR Part 51
MHI RJ has issued Service Bulletin 670BA-35-016, Revision B, dated
December 17, 2021. This service information describes procedures for
low-pressure and high-pressure cleaning of the crew oxygen tubes. The
tasks include cleaning the end fittings and threads, cleaning the inner
wall of the tubes with solvent, and flushing the inner wall of the
tubes with nitrogen. 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 the State of Design Authority,
the FAA has been notified of the unsafe condition described in the MCAI
and service information referenced above. The FAA is proposing this AD
because the FAA evaluated all the relevant information and determined
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 34 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs for Required Actions
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Labor cost Parts cost Cost per product Cost on U.S. operators
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51 work-hours x $85 per hour = Up to $1,240............. Up to $5,575............ Up to $189,550.
$4,335.
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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-2022-0521; Project Identifier MCAI-2022-00273-
T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by July 1, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to MHI RJ Aviation ULC (Type Certificate
Previously Held by Bombardier, Inc.) airplanes identified in
paragraphs (c)(1) through (4) of this AD certificated in any
category.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) and
CL-600-2C11 (Regional Jet Series 550) airplanes, serial numbers
10346 and 10347.
(2) Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24
(Regional Jet Series 900) airplanes, serial numbers 15413 through
15484 inclusive.
(3) Model CL-600-2E25 (Regional Jet Series 1000) airplanes,
serial numbers 19049 through 19064 inclusive.
(4) Model CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24 and
CL-600-2E25 airplanes equipped with tube part numbers installed
after the dates indicated in Section 1.A.(2) of MHIRJ Service
Bulletin (SB) 670BA-35-016, Revision B, dated December 17, 2021.
(d) Subject
Air Transport Association (ATA) of America Code 35, Oxygen.
(e) Unsafe Condition
This proposed AD was prompted by laboratory tests that showed
that the oxygen tubes of the crew oxygen system may be contaminated
with lubricants, as a result of the manufacturing and cleaning
procedures. The FAA is proposing this AD to address the contaminated
oxygen tubes of the crew oxygen system, which could lead to a fire
within the oxygen tubes, or a health hazard related to the
inhalation of lubricant fumes when the masks are in use.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
Within 8,800 flight hours after the effective date of this AD,
clean and flush the crew oxygen system, in accordance with the
[[Page 29843]]
Accomplishment Instructions of MHIRJ Service Bulletin 670BA-35-016,
Revision B, dated December 17, 2021.
(h) Credit for Previous Actions
This paragraph provides credit for actions required by this AD,
if those actions were performed before the effective date of this
AD, using the service information identified in paragraph (h)(1) or
(2) of this AD.
(1) MHI RJ Service Bulletin 670BA-35-016, dated February 26,
2021.
(2) MHI RJ Service Bulletin 670BA-35-016, Revision A, dated
November 5, 2021.
(i) Other FAA 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 certification
office, send it to ATTN: Program Manager, Continuing Operational
Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300. 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.
(j) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) TCCA CF-2022-06, dated February 28, 2022, for related
information. This MCAI may be found in the AD docket on the internet
at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket
No. FAA-2022-0521.
(2) For more information about this AD, contact Chirayu Gupta,
Aerospace Engineer, Mechanical Systems and Administrative Services
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#d0e9fdb1a6a3fdbea9b1b3bffdb3bfa390b6b1b1feb7bfa6"><span class="__cf_email__" data-cfemail="21180c4057520c4f5840424e0c424e52614740400f464e57">[email protected]</span></a>.
(3) For service information identified in this AD, contact MHI
RJ Aviation ULC, 12655 Henri-Fabre Blvd., Mirabel, Qu[eacute]bec J7N
1E1 Canada; Widebody Customer Response Center North America toll-
free telephone +1-844-272-2720 or direct-dial telephone +1-514-855-
8500; fax +1-514-855-8501; email <a href="/cdn-cgi/l/email-protection#6f1b070b410c1d052f0207061d05410c0002"><span class="__cf_email__" data-cfemail="46322e226825342c062b2e2f342c6825292b">[email protected]</span></a>; internet <a href="https://mhirj.com">https://mhirj.com</a>. 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.
Issued on May 9, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-10528 Filed 5-16-22; 8:45 am]
BILLING CODE 4910-13-P
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