Proposed Rule2022-12934
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Primary source
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Published
June 16, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2C11 (Regional Jet Series 550) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by a determination that new and more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new and more restrictive airworthiness limitations. 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 116 (Thursday, June 16, 2022)</title>
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[Federal Register Volume 87, Number 116 (Thursday, June 16, 2022)]
[Proposed Rules]
[Pages 36269-36272]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-12934]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0679; Project Identifier MCAI-2021-01213-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 all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700,
701 & 702) airplanes, Model CL-600-2C11 (Regional Jet Series 550)
airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model
CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25
(Regional Jet Series 1000) airplanes. This proposed AD was prompted by
a determination that new and more restrictive airworthiness limitations
are necessary. This proposed AD would require revising the existing
maintenance or inspection program, as applicable, to incorporate new
and more restrictive airworthiness limitations. 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 August 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 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#deaab6baf0bdacb49eb3b6b7acb4f0bdb1b3"><span class="__cf_email__" data-cfemail="6d190509430e1f072d0005041f07430e0200">[email protected]</span></a>; internet https://
[[Page 36270]]
mhirj.com. 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 on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2022-
0679; 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. Comments will be
available in the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Chirayu A. Gupta, Aerospace Engineer,
Airframe and Propulsion 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#a39a8ec2d5d08ecddac2c0cc8ec0ccd0e3c5c2c28dc4ccd5"><span class="__cf_email__" data-cfemail="182135796e6b357661797b77357b776b587e7979367f776e">[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-2022-0679; Project Identifier
MCAI-2021-01213-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 proposed AD.
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 A. Gupta, Aerospace Engineer, Airframe and Propulsion 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#241d09455257094a5d45474b09474b57644245450a434b52"><span class="__cf_email__" data-cfemail="734a5e1205005e1d0a12101c5e101c00331512125d141c05">[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.
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2021-38, dated November 5,
2021 (TCCA AD CF-2021-38) (also referred to after this as the Mandatory
Continuing Airworthiness Information, or the MCAI), to correct an
unsafe condition for all MHI RJ Aviation ULC Model CL-600-2C10
(Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2C11
(Regional Jet Series 550) airplanes, Model CL-600-2D15 (Regional Jet
Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900)
airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes.
You may examine the MCAI 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-
0679.
This proposed AD was prompted by a determination that new or more
restrictive airworthiness limitations are necessary. In-service reports
of emergency ram air valve (ERAV) part number (P/N) GG670-95019-1 stuck
in closed or partially open positions have been received. Further
investigation revealed the ERAV is failing due to corrosion on multiple
sub-components, causing an increase in the breakaway torque that cannot
be overcome by the valve actuator. Based on these findings, MHI RJ
Aviation ULC issued CRJ700/900/1000 Series Regional Jet Temporary
Revision (TR) ALI-0744, dated April 27, 2021, which reduced the
interval for the existing Maintenance Review Board (MRB) Task 215000-
201, Operational Check of the Ram Air Shutoff Valve; and CRJ700/900/
1000 Series Regional Jet TR ALI-0745, dated April 27, 2021, which added
new MRB Task 215000-204, Detailed Inspection of the Pack Discharge and
Ram Air Supply Duct. The FAA is proposing this AD to address in-service
reports of ERAV P/N GG670-95019-1 stuck in closed or partially open
positions, which if not corrected, could result in a complete loss of
outside air supply, leading to an increase in flight deck and cabin
temperatures and a possible increased level of contaminated air (carbon
monoxide, carbon dioxide, or ozone). See the MCAI for additional
background information.
Related Service Information Under 1 CFR Part 51
MHI RJ Aviation issued the following TRs, which describe
airworthiness limitations for the air conditioning system.
<bullet> CRJ700/900/1000 Series Regional Jet TR ALI-0744, dated
April 27, 2021, specifies a reduced interval for the operational check
of the ram air shutoff valve.
<bullet> CRJ700/900/1000 Series Regional Jet TR ALI-0745, dated
April 27, 2021, describes a new MRB task for inspecting the pack
discharge and ram air supply duct.
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 Requirements of This NPRM
This proposed AD would require revising the existing maintenance or
inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations.
This proposed AD would require revisions to certain operator
maintenance documents to include new actions (e.g., inspections).
Compliance with these actions is required by 14 CFR 91.403(c). For
airplanes that have been previously modified, altered, or repaired in
the areas addressed by this proposed
[[Page 36271]]
AD, the operator may not be able to accomplish the actions described in
the revisions. In this situation, to comply with 14 CFR 91.403(c), the
operator must request approval for an alternative method of compliance
according to paragraph (i)(1) of this proposed AD.
Costs of Compliance
The FAA estimates that this proposed AD affects 1,158 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
The FAA has determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although the
agency recognizes that this number may vary from operator to operator.
Since operators incorporate maintenance or inspection program changes
for their affected fleet(s), the FAA has determined that a per-operator
estimate is more accurate than a per-airplane estimate. Therefore, the
agency estimates the average total cost per operator to be $7,650 (90
work-hours x $85 per work-hour).
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-2022-0679; Project Identifier MCAI-2021-01213-
T.
(a) Comments Due Date
The FAA must receive comments by August 1, 2022.
(b) Affected Airworthiness Directives (ADs)
None.
(c) Applicability
This AD applies to all MHI RJ Aviation ULC airplanes,
certificated in any category, identified in paragraphs (c)(1)
through (5) of this AD.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702)
airplanes.
(2) Model CL-600-2C11 (Regional Jet Series 550) airplanes.
(3) Model CL-600-2D15 (Regional Jet Series 705) airplanes.
(4) Model CL-600-2D24 (Regional Jet Series 900) airplanes.
(5) Model CL-600-2E25 (Regional Jet Series 1000) airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 21, Air
conditioning.
(e) Reason
This AD was prompted by a determination that new or more
restrictive airworthiness limitations are necessary. The FAA is
issuing this AD to address in-service reports of emergency ram air
valve part number GG670-95019-1 stuck in closed or partially open
positions, which, if not corrected could result in a complete loss
of outside air supply, leading to an increase in flight deck and
cabin temperatures and a possible increased level of contaminated
air (carbon monoxide, carbon dioxide, or ozone).
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Maintenance or Inspection Program Revision
(1) Within 90 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in [MHI RJ] CRJ700/900/1000
Series Regional Jet Series Temporary Revision (TR) ALI-0744, dated
April 27, 2021. The initial compliance time for doing the task is at
the applicable time specified in paragraph (g)(1)(i) or (ii) of this
AD, or within 90 days after the effective date of this AD, whichever
occurs later.
(i) For airplanes that have accumulated less than 1,800 flight
hours since the last operational check of the ram air shutoff valve
was performed as specified in Maintenance Review Board (MRB) Task
215000-201, and for airplanes that have accumulated less than 1,800
flight hours from the date of issuance of the original airworthiness
certificate or original export certificate of airworthiness: Within
3 months after the effective date of this AD, or before accumulating
1,800 total flight hours, whichever occurs later.
(ii) For airplanes that have accumulated 1,800 flight hours or
more since the last operational check of the ram air shutoff valve
was performed as specified in MRB Task 215000-201, and for airplanes
that have accumulated 1,800 flight hours or more since the date of
issuance of the original airworthiness certificate or original
export certificate of airworthiness and for which no operational
check of the valve has been performed: Within 3 months after the
effective date of this AD or before accumulating 3,000 total flight
hours, whichever occurs first.
(2) Within 90 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in [MHI RJ] CRJ700/900/1000
Series Regional Jet Series TR ALI-0745, dated April 27, 2021. The
initial compliance time for doing the task is at the applicable time
specified in paragraph (g)(2)(i) or (ii) of this AD, or within 90
days after the effective date of this AD, whichever occurs later.
(i) For airplanes that have accumulated less than 17,600 flight
hours since the last detailed inspection of the pack discharge and
ram air supply ducts was performed as specified in MRB Task 215000-
204, and for airplanes that have accumulated less than 17,600 flight
hours since the date of issuance of the original airworthiness
certificate or original export certificate of airworthiness: Within
3 months after the effective date of this AD, or before accumulating
17,600 total flight hours, whichever occurs later.
(ii) For airplanes that have accumulated 17,600 flight hours or
more since the last detailed inspection of the pack discharge and
ram air supply ducts as specified in MRB
[[Page 36272]]
Task 215000-204, and for airplanes that have accumulated 17,600
flight hours or more since the date of issuance of the original
airworthiness certificate or original export certificate of
airworthiness, and for which no detailed inspection of the pack
discharge and ram air supply ducts has been performed: Within 3
months after the effective date of this AD.
(h) No Alternative Actions or Intervals
After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections) or intervals, may be used unless the
actions and intervals are approved as an alternative method of
compliance (AMOC) in accordance with the procedures specified in
paragraph (i)(1) of this AD.
(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 AD CF-2021-38, dated November 5, 2021, 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-2022-0679.
(2) For more information about this AD, contact Chirayu A.
Gupta, Aerospace Engineer, Airframe and Propulsion 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#eed7c38f989dc380978f8d81c38d819dae888f8fc0898198"><span class="__cf_email__" data-cfemail="023b2f6374712f6c7b63616d2f616d71426463632c656d74">[email protected]</span></a>.
(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#add9c5c983cedfc7edc0c5c4dfc783cec2c0"><span class="__cf_email__" data-cfemail="c9bda1ade7aabba389a4a1a0bba3e7aaa6a4">[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 June 10, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-12934 Filed 6-15-22; 8:45 am]
BILLING CODE 4910-13-P
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