Rule2024-18629
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
August 21, 2024
Effective
September 25, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900) airplanes. This AD was prompted by a report that torque wrenches used during production installation of bulkhead fittings on the oxygen lines of the flightcrew oxygen mask stowage boxes and adapter fitting on the oxygen pressure gauge were out of calibration, which resulted in a higher torque level setting than required. This AD requires replacement of the affected oxygen line fittings, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 89 Issue 162 (Wednesday, August 21, 2024)</title>
</head>
<body><pre>
[Federal Register Volume 89, Number 162 (Wednesday, August 21, 2024)]
[Rules and Regulations]
[Pages 67523-67525]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-18629]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1009; Project Identifier MCAI-2023-01221-T;
Amendment 39-22782; AD 2024-14-01]
RIN 2120-AA64
Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate
Previously Held by Bombardier, Inc.) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain MHI RJ Aviation ULC Model CL-600-2D15 (Regional Jet Series 705)
and CL-600-2D24 (Regional Jet Series 900) airplanes. This AD was
prompted by a report that torque wrenches used during production
installation of bulkhead fittings on the oxygen lines of the flightcrew
oxygen mask stowage boxes and adapter fitting on the oxygen pressure
gauge were out of calibration, which resulted in a higher torque level
setting than required. This AD requires replacement of the affected
oxygen line fittings, as specified in a Transport Canada AD, which is
incorporated by reference. The FAA is issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective September 25, 2024.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September
25, 2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1009; 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 Transport Canada material, contact Transport Canada,
Transport Canada National Aircraft Certification, 159 Cleopatra Drive,
Nepean, Ontario K1A 0N5, Canada; telephone 888-663-3639; email
TC.AirworthinessDirectives-
[[Page 67524]]
<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="dc9fb3b2afb5bbb2b9afb8b9b2bdaab5bbbdbeb5b0b5a8b9f2889f9ca8bff2bbbff2bfbd">[email protected]</a>. You may find this material on the
Transport Canada website at tc.canada.ca/en/aviation. It is also
available at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2024-1009.
<bullet> You may view this material 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: Fatin Saumik, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#226443564b4c0c700c7143574f4b49624443430c454d54"><span class="__cf_email__" data-cfemail="b7f1d6c3ded999e599e4d6c2dadedcf7d1d6d699d0d8c1">[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 certain MHI RJ Aviation
ULC Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24
(Regional Jet Series 900) airplanes. The NPRM published in the Federal
Register on April 29, 2024 (89 FR 33297). The NPRM was prompted by AD
CF-2023-75, dated November 28, 2023, issued by Transport Canada, which
is the aviation authority for Canada (Transport Canada AD CF-2023-75)
(also referred to as the MCAI). The MCAI states MHI RJ Aviation ULC
received a quality escape notice from a supplier, reporting that torque
wrenches used during production installation of bulkhead fittings on
the oxygen lines of the flightcrew oxygen mask stowage boxes and
adapter fitting on the oxygen pressure gauge were out of calibration,
which resulted in a higher torque level setting than required by
drawing. This over-torque could cause damage to the oxygen line
fittings which, if not corrected, could cause oxygen leakage before
being annunciated and result in lack of oxygen to the flightcrew when
needed.
In the NPRM, the FAA proposed to require replacement of the
affected oxygen line fittings, as specified in Transport Canada AD CF-
2023-75. 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-2024-1009.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from the Air Line Pilots Association,
International (ALPA), 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
comment 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 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 Material Under 1 CFR Part 51
Transport Canada AD CF-2023-75 specifies procedures for replacement
of the bulkhead fittings on the oxygen lines of the mask stowage boxes
and replacement of the fitting adapter on the oxygen pressure gauge.
This material 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 24 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
----------------------------------------------------------------------------------------------------------------
6 work-hours x $85 per hour = $510........................... $350 $860 $20,640
----------------------------------------------------------------------------------------------------------------
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.
[[Page 67525]]
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2024-14-01 MHI RJ Aviation ULC (Type Certificate Previously Held by
Bombardier, Inc.): Amendment 39-22782; Docket No. FAA-2024-1009;
Project Identifier MCAI-2023-01221-T.
(a) Effective Date
This airworthiness directive (AD) is effective September 24,
2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to MHI RJ Aviation ULC (Type Certificate
previously held by Bombardier, Inc.) Model CL-600-2D15 (Regional Jet
Series 705) and CL-600-2D24 (Regional Jet Series 900) airplanes,
certificated in any category, as identified in Transport Canada AD
CF-2023-75, dated November 28, 2023 (Transport Canada AD CF-2023-
75).
(d) Subject
Air Transport Association (ATA) of America Code 35, Oxygen.
(e) Unsafe Condition
This AD was prompted by a report that torque wrenches used
during production installation of bulkhead fittings on the oxygen
lines of the flightcrew oxygen mask stowage boxes and adapter
fitting on the oxygen pressure gauge were out of calibration, which
resulted in a higher torque level setting than required. The FAA is
issuing this AD to address this over-torque, which could cause
damage to the oxygen line fittings. The unsafe condition, if not
addressed, could result in oxygen leakage before being annunciated
and result in lack of oxygen to the flightcrew when needed.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
Except as specified in paragraph (h) of this AD: Comply with all
required actions and compliance times specified in, and in
accordance with, Transport Canada AD CF-2023-75.
(h) Exception to Transport Canada AD CF-2023-75
(1) Where Transport Canada AD CF-2023-75 refers to its effective
date, this AD requires using the effective date of this AD.
(2) Where Transport Canada AD CF-2023-75 refers to hours air
time, this AD requires using flight hours.
(i) Additional AD Provisions
The following provisions also apply to this AD:
(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 (j) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#5b62761a0d087615021a1814761814081b3d3a3a753c342d"><span class="__cf_email__" data-cfemail="3d04107c6b6e1073647c7e72107e726e7d5b5c5c135a524b">[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; 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.
(j) Additional Information
For more information about this AD, contact Fatin Saumik,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email
<a href="/cdn-cgi/l/email-protection#226443564b4c0c700c7143574f4b49624443430c454d54"><span class="__cf_email__" data-cfemail="4e082f3a2720601c601d2f3b2327250e282f2f60292138">[email protected]</span></a>.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the material listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless this AD specifies otherwise.
(i) Transport Canada AD CF-2023-75, dated November 28, 2023.
(ii) [Reserved]
(3) For Transport Canada AD CF-2023-75, contact Transport
Canada, Transport Canada National Aircraft Certification, 159
Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888-663-
3639; email <a href="/cdn-cgi/l/email-protection#bfebfc91fed6cdc8d0cdcbd7d6d1daccccfbd6cddadccbd6c9dacc92fcd0d1ccd6d8d1daccdbdad1dec9d6d8deddd6d3d6cbda91ebfcffcbdc91d8dc91dcde"><span class="__cf_email__" data-cfemail="3064731e715942475f424458595e554343745942555344594655431d735f5e4359575e554354555e514659575152595c5944551e64737044531e57531e5351">[email protected]</span></a>. You may find this Transport
Canada AD on the Transport Canada website at tc.canada.ca/en/
aviation.
(4) You may view this material 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#1f796d3176716c6f7a7c6b7670715f717e6d7e31787069"><span class="__cf_email__" data-cfemail="82e4f0acebecf1f2e7e1f6ebedecc2ece3f0e3ace5edf4">[email protected]</span></a>.
Issued on July 10, 2024.
James D. Foltz,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2024-18629 Filed 8-20-24; 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 August 21, 2024.
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.