Rule2022-27019
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
December 14, 2022
Effective
January 18, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting 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 AD was prompted by a report that the pressure switch gauge assembly for the cargo bay fire extinguisher container has the potential to display an incorrect pressure under certain environmental conditions. This AD requires replacing affected high rate of discharge (HRD) and low rate of discharge (LRD) pressure switch gauge assemblies for the cargo bay fire extinguisher container. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 87 Issue 239 (Wednesday, December 14, 2022)</title>
</head>
<body><pre>
[Federal Register Volume 87, Number 239 (Wednesday, December 14, 2022)]
[Rules and Regulations]
[Pages 76405-76407]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-27019]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
========================================================================
Federal Register / Vol. 87, No. 239 / Wednesday, December 14, 2022 /
Rules and Regulations
[[Page 76405]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1154; Project Identifier MCAI-2022-00550-T;
Amendment 39-22250; AD 2022-24-10]
RIN 2120-AA64
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate
Previously Held by Bombardier, Inc.) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting 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 AD was prompted by a report
that the pressure switch gauge assembly for the cargo bay fire
extinguisher container has the potential to display an incorrect
pressure under certain environmental conditions. This AD requires
replacing affected high rate of discharge (HRD) and low rate of
discharge (LRD) pressure switch gauge assemblies for the cargo bay fire
extinguisher container. The FAA is issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective January 18, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 18,
2023.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1154; 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 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#fb8f939fd5988991bbc79adb93899e9dc6" 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. It is also available at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-1154.
FOR FURTHER INFORMATION CONTACT: Gabriel Kim, 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#a1988cc0d7d28ccfd8c0c2ce8cc2ced2e1c7c0c08fc6ced7"><span class="__cf_email__" data-cfemail="b38a9ed2c5c09eddcad2d0dc9ed0dcc0f3d5d2d29dd4dcc5">[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 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. The NPRM published in the Federal Register on September 12,
2022 (87 FR 55735). The NPRM was prompted by AD CF-2022-20, dated April
19, 2022, issued by Transport Canada, which is the aviation authority
for Canada (referred to after this as the MCAI). The MCAI states that
the pressure switch gauge assembly for the cargo bay fire extinguisher
container has the potential to display an incorrect pressure under
certain environmental conditions. The supplier attributed the root
cause of the container pressure display error to the use of a room
temperature vulcanizing (RTV) silicone. Both the HRD and LRD cargo bay
fire extinguisher containers are affected. The airplane is intended to
be operated at temperatures as low as -53.8 [deg]C (-65 [deg]F).
However, testing has shown that at temperatures below-49.4 [deg]C (-57
[deg]F), the RTV silicone goes through a glass transition that causes
locking of the discharge indication microswitch in a closed state
(showing normal pressure) on 50 percent of the assemblies tested. After
returning to above -35.0 [deg]C (-31.5 [deg]F) for more than 6 minutes,
the pressure switch gauge assembly returns to normal operation. If the
flightcrew does not receive an indication of low pressure and there is
a fire in the cargo bay, reduced fire extinguisher container capacity
below the level required to appropriately suppress a cargo fire could
lead to an uncontrollable fire and loss of the airplane.
In the NPRM, the FAA proposed to require replacing affected HRD and
LRD pressure switch gauge assemblies for the cargo bay fire
extinguisher container.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1154.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from Air Line Pilots Association,
International, who supported the NPRM without change.
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, considered the
comments received, 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
[[Page 76406]]
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
MHI RJ Aviation ULC has issued Service Bulletin 670BA-26-013, dated
October 8, 2021. This service information describes procedures for
replacing the HRD and LRD pressure switch gauge assemblies for cargo
bay fire extinguisher containers part numbers (P/N) 473919-1, P/N
473920-1, and P/N 474901-1, manufactured prior to March 2020 as
indicated on the identification plate. 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
ADDRESSES.
Costs of Compliance
The FAA estimates that this AD affects 564 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
4 work-hours x $85 per hour = $340........................... $595 $935 $527,340
----------------------------------------------------------------------------------------------------------------
The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all 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 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:
2022-24-10 MHI RJ Aviation ULC (Type Certificate Previously Held by
Bombardier, Inc.): Amendment 39-22250; Docket No. FAA-2022-1154;
Project Identifier MCAI-2022-00550-T.
(a) Effective Date
This airworthiness directive (AD) is effective January 18, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to 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; certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 26, Fire
protection.
(e) Unsafe Condition
This AD was prompted by a report indicating that the pressure
switch gauge assembly for the cargo bay fire extinguisher container
has the potential to display an incorrect pressure under certain
environmental conditions. The FAA is issuing this AD to address
instances where the fire extinguisher container capacity is reduced
below the level required to appropriately suppress a cargo fire, and
the flightcrew does not receive an indication of low pressure,
which, in the event of a fire in the cargo bay, could lead to an
uncontrollable fire and loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Replacement
Within 10 years after the effective date of this AD: Replace the
high rate of discharge and low rate of discharge pressure switch
gauge assemblies for any cargo bay fire extinguisher container
having part number (P/N) 473919-1, P/N 473920-1, and P/N 474901-1,
manufactured prior to March 2020 as indicated on the identification
plate, with a serviceable part number, in accordance with the
Accomplishment Instructions of MHI RJ Aviation ULC Service Bulletin
670BA-26-013, dated October 8, 2021.
(h) Parts Installation Prohibition
As of 10 years after the effective date of this AD, or before
further flight after the replacement has been done in paragraph (g)
of this AD, whichever occurs first, no person may install, on any
airplane, a cargo bay fire extinguisher container having P/N 473919-
1, P/N 473920-1, or P/N 474901-1, manufactured prior to March 2020
as indicated on the identification plate, unless ``CW SB Fire
Extinguisher-26-1'' is identified on the identification plate.
(i) No Return of Part Requirement
Although the Accomplishment Instructions of MHI RJ Aviation ULC
Service Bulletin 670BA-26-013, dated October 8, 2021, specify to
return the cargo fire extinguisher containers to the manufacturer,
this AD does not include that requirement.
[[Page 76407]]
(j) 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 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; or MHI RJ Aviation ULC's Transport
Canada Design Approval Organization (DAO). If approved by the DAO,
the approval must include the DAO-authorized signature.
(k) Additional Information
(1) For related information, refer to Transport Canada AD CF-
2022-20, dated April 19, 2022. This Transport Canada AD may be found
in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-1154.
(2) For more information about this AD, contact Gabriel Kim,
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#497064283f3a642730282a26642a263a092f2828672e263f"><span class="__cf_email__" data-cfemail="182135796e6b357661797b77357b776b587e7979367f776e">[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) MHI RJ Aviation ULC Service Bulletin 670BA-26-013, dated
October 8, 2021.
(ii) [Reserved]
(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#e3978b87cd809189a3df82c38b918685de" 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="1076623e797e6360757364797f7e507e7162713e777f66">[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 15, 2022.
Ross Landes, Deputy
Director for Regulatory Operations, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-27019 Filed 12-13-22; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on December 14, 2022.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.