Rule2023-26382
Airworthiness Directives; 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 1, 2023
Effective
January 5, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes. This 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 AD requires testing of all affected overheat detection sensing elements of the bleed air leak detection system, and replacement if necessary. This AD also prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 88 Issue 230 (Friday, December 1, 2023)</title>
</head>
<body><pre>
[Federal Register Volume 88, Number 230 (Friday, December 1, 2023)]
[Rules and Regulations]
[Pages 83822-83825]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-26382]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1710; Project Identifier MCAI-2023-00243-T;
Amendment 39-22600; AD 2023-22-16]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes.
This 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 AD requires testing of all affected overheat
detection sensing elements of the bleed air leak detection system, and
replacement if necessary. This AD also prohibits the installation of
affected parts. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective January 5, 2024.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of January 5,
2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1710; 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
[[Page 83823]]
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 Bombardier service information identified in this
final rule, contact Bombardier Business Aircraft Customer Response
Center, 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9,
Canada; telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#5130327f28243d113034233e7f6d3071392334376c" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>;
website <a href="http://bombardier.com">bombardier.com</a>.
<bullet> For Kidde Aerospace & Defense service information
identified in this final rule, contact Kidde Aerospace & Defense, 4200
Airport Drive NW, Building B, Wilson, NC 27896; telephone: 319-295-
5000; website: <a href="http://kiddetechnologies.com/aviation.com">kiddetechnologies.com/aviation.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-2023-1710.
FOR FURTHER INFORMATION CONTACT: Gabriel Kim, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-
228-7300; email <a href="/cdn-cgi/l/email-protection#4c75612d3a3f6122352d2f23612f233f0c2a2d2d622b233a"><span class="__cf_email__" data-cfemail="695044081f1a440710080a06440a061a290f0808470e061f">[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 Bombardier,
Inc., Model CL-600-2B16 (604 Variant) airplanes. The NPRM published in
the Federal Register on August 14, 2023 (88 FR 54946). The NPRM was
prompted by AD CF-2023-05, dated February 8, 2023, issued by Transport
Canada, which is the aviation authority for Canada (referred to after
this as the MCAI). The MCAI states that Bombardier 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.
In the NPRM, the FAA proposed to require testing of all affected
overheat detection sensing elements of the bleed air leak detection
system, and replacement if necessary. In the NPRM, the FAA also
proposed to prohibit the installation of affected parts. 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-2023-1710.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from Bombardier. The following presents
the comment received on the NPRM and the FAA's response to the comment.
Request for Removal of Certain Variants
Bombardier requested that the FAA remove reference to the 601-3A
and 601-3R Variants from the proposed AD. Bombardier stated that Model
CL-600-2B16 601-3A and 601-3R Variants are not affected by the
identified unsafe condition; only Model CL-600-2B16 604 Variant
airplanes are affected.
The FAA agrees and notes that the 604 Variant airplanes are those
having serial numbers 5301 and subsequent, therefore, the 601-3A and
601-3R Variants are not applicable to this AD. The FAA revised the
Summary, Background, and paragraph (c) of this AD accordingly.
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,
and any other changes described previously, 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
The FAA reviewed Bombardier Service Bulletin 604-36-005, Bombardier
Service Bulletin 605-36-002, and Bombardier Service Bulletin 650-36-
001, all dated December 23, 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. These documents are
distinct since they apply to different airplane serial numbers.
The FAA reviewed Kidde Aerospace & Defense Service Bulletin CFD-26-
1, Revision 6, dated February 28, 2022. This service information
specifies affected continuous fire detector part numbers and testing
procedures.
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.
Costs of Compliance
The FAA estimates that this AD affects 694 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 37 work-hours x $85 per $0 Up to $3,145................. Up to $2,182,630.
hour = Up to $3,145.
----------------------------------------------------------------------------------------------------------------
The 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.
[[Page 83824]]
Estimated Costs of On-Condition Actions
----------------------------------------------------------------------------------------------------------------
Cost per
Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
37 work-hours x $85 per hour = $3,145......................................... $4,000 * $7,145
----------------------------------------------------------------------------------------------------------------
* The FAA has received no definitive data on which to base the cost estimates for the parts specified in this
AD. This is the estimated cost for replacement of 2 percent of the failed sensing elements. If all sensing
elements failed, the estimated parts cost would be $40,000 for each airplane.
The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all 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:
2023-22-16 Bombardier, Inc.: Amendment 39-22600; Docket No. FAA-
2023-1710; Project Identifier MCAI-2023-00243-T.
(a) Effective Date
This airworthiness directive (AD) is effective January 5, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc., Model CL-600-2B16 (604
Variant) airplanes, certificated in any category, serial numbers
5580 through 5665 inclusive, 5701 through 5988 inclusive, and 6050
and subsequent.
(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.
(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) and (2) of this AD apply.
(1) Affected part: A sensing element marked with a date code
before A2105 and having a part number listed in Kidde Aerospace and
Defense Service Bulletin CFD-26-1, Revision 6, dated February 28,
2022; unless the sensing element meets the conditions specified in
paragraphs (g)(1)(i) and (ii) of this AD, or has passed the test
specified in paragraph (h) of this AD.
(i) Has been tested in accordance with the Accomplishment
Instructions of Kidde Aerospace and Defense Service Bulletin CFD-26-
1, Revision 6, dated February 28, 2022, and passed the test; and
(ii) Has been marked on one face of its connector hex nut in
accordance with paragraph 3.C., Identification Procedure, of Kidde
Aerospace and Defense Service Bulletin CFD-26-1, Revision 6, dated
February 28, 2022.
(2) Serviceable part: A sensing element that is not an affected
part.
(h) Testing
For airplane serial numbers 5580 through 5665 inclusive, 5701
through 5988 inclusive, and 6050 through 6174 inclusive: Within
7,800 flight cycles or 96 months, whichever occurs first, from the
effective date of this AD, test the bleed air leak detection system
sensing elements to determine if they are serviceable, in accordance
with the Accomplishment Instructions of the applicable service
information identified in paragraphs (h)(1) through (3) of this AD.
If the sensing element is found serviceable, before further flight,
mark the sensing element with a green mark in accordance with the
Accomplishment Instructions of the applicable service information
identified in paragraphs (h)(1) through (3) of this AD. If the
sensing element is found not serviceable, before further flight,
replace the sensing element with a serviceable part in accordance
with the Accomplishment Instructions of the applicable service
information identified in paragraphs (h)(1) through (3) of this AD.
(1) For Model CL-600-2B16 airplanes, serial numbers 5580 through
5665 inclusive (Challenger 604): Use Bombardier Service Bulletin
604-36-005, dated December 23, 2022.
(2) For Model CL-600-2B16 airplanes, serial numbers 5701 through
5988 inclusive (Challenger 605): Use Bombardier Service Bulletin
605-36-002, dated December 23, 2022.
(3) For Model CL-600-2B16 airplanes, serial numbers 6050 through
6174 inclusive (Challenger 650): Use Bombardier Service Bulletin
650-36-001, dated December 23, 2022.
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install an
affected part on any airplane.
[[Page 83825]]
(j) No Reporting Requirement
Although the service information referenced in paragraph (g)(1)
of this AD and paragraphs (h)(1) through (3) of this AD specifies to
submit certain information to the manufacturer, this AD does not
include that requirement.
(k) 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,
International Validation Branch, mail it to the address identified
in paragraph (l)(2) of this AD or email to: <a href="/cdn-cgi/l/email-protection#c5fce8849396e8848c97e8f2f6f5e884888a8685a3a4a4eba2aab3"><span class="__cf_email__" data-cfemail="e3dacea2b5b0cea2aab1ced4d0d3cea2aeaca0a3858282cd848c95">[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; or Transport Canada; or Bombardier, Inc.'s
Transport Canada Design Approval Organization (DAO). If approved by
the DAO, the approval must include the DAO-authorized signature.
(3) Required for Compliance (RC): Except as required by
paragraph (k)(2) of this AD, if any service information contains
procedures or tests that are identified as RC, those procedures and
tests must be done to comply with this AD; any procedures or tests
that are not identified as RC are recommended. Those procedures and
tests that are not identified as RC may be deviated from using
accepted methods in accordance with the operator's maintenance or
inspection program without obtaining approval of an AMOC, provided
the procedures and tests identified as RC can be done and the
airplane can be put back in an airworthy condition. Any
substitutions or changes to procedures or tests identified as RC
require approval of an AMOC.
(l) Additional Information
(1) Refer to Transport Canada AD CF-2023-05, dated February 8,
2023, for related information. This Transport Canada AD may be found
in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1710.
(2) For more information about this AD, contact Gabriel Kim,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#fec7d39f888dd390879f9d91d39d918dbe989f9fd0999188"><span class="__cf_email__" data-cfemail="083125697e7b256671696b67256b677b486e6969266f677e">[email protected]</span></a>.
(m) 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) Bombardier Service Bulletin 604-36-005, dated December 23,
2022.
(ii) Bombardier Service Bulletin 605-36-002, dated December 23,
2022.
(iii) Bombardier Service Bulletin 650-36-001, dated December 23,
2022.
(iv) Kidde Aerospace and Defense Service Bulletin CFD-26-1,
Revision 6, dated February 28, 2022.
Note 1 to paragraph (m)(2)(iv): The revision level of this
service bulletin is only identified on the transmittal sheet.
(3) For Bombardier service information identified in this AD,
contact Bombardier Business Aircraft Customer Response Center, 400
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada;
telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#b9d8da97c0ccd5f9d8dccbd69785d899d1cbdcdf84" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website
<a href="http://bombardier.com">bombardier.com</a>.
(4) For Kidde Aerospace & Defense service information identified
in this AD, contact Kidde Aerospace & Defense, 4200 Airport Drive
NW, Building B, Wilson, NC 27896; telephone: 319-295-5000; website:
<a href="http://kiddetechnologies.com/aviation.com">kiddetechnologies.com/aviation.com</a>.
(5) 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.
(6) 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#a9cfdb87c0c7dad9cccaddc0c6c7e9c7c8dbc887cec6df"><span class="__cf_email__" data-cfemail="d8beaaf6b1b6aba8bdbbacb1b7b698b6b9aab9f6bfb7ae">[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 2, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-26382 Filed 11-30-23; 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 1, 2023.
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.