Proposed Rule2023-17000
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
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Published
August 14, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed 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 proposed AD would require testing of all affected overheat detection sensing elements of the bleed air leak detection system, and replacement if necessary. This proposed AD would also prohibit the installation of affected parts. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 88 Issue 155 (Monday, August 14, 2023)</title>
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[Federal Register Volume 88, Number 155 (Monday, August 14, 2023)]
[Proposed Rules]
[Pages 54946-54949]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-17000]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1710; Project Identifier MCAI-2023-00243-T]
RIN 2120-AA64
Airworthiness Directives; 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 Bombardier, Inc., Model CL-600-2B16 (601-3A, 601-3R, and
604 Variants) airplanes. This proposed 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 proposed AD would
require testing of all affected overheat detection sensing elements of
the bleed air leak detection system, and replacement if necessary. This
proposed AD would also prohibit the installation of affected parts. The
FAA is proposing this AD to address the unsafe condition on these
products.
[[Page 54947]]
DATES: The FAA must receive comments on this proposed AD by September
28, 2023.
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="http://regulations.gov">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.
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 NPRM, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
street address for Docket Operations is listed above.
Material Incorporated by Reference:
<bullet> For Bombardier service information identified in this
NPRM, 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#1d7c7e336468715d7c786f7233217c3d756f787b20" 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 NPRM, 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.
FOR FURTHER INFORMATION CONTACT: Chirayu Gupta, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#083125697e7b256671696b67256b677b486e6969266f677e"><span class="__cf_email__" data-cfemail="457c68243336682b3c24262a68262a36052324246b222a33">[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-2023-1710; Project Identifier
MCAI-2023-00243-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="http://regulations.gov">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, Aviation Safety Engineer, FAA, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#053c28647376286b7c64666a28666a76456364642b626a73"><span class="__cf_email__" data-cfemail="1a23377b6c693774637b7975377975695a7c7b7b347d756c">[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, which is the aviation authority for Canada, has
issued Transport Canada AD CF-2023-05, dated February 8, 2023
(Transport Canada AD CF-2023-05) (also referred to after this as the
MCAI), to correct an unsafe condition on certain Bombardier, Inc.,
Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. 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.
The FAA is proposing 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.
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.
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 this State of Design Authority,
it has notified the FAA of the unsafe condition described in the MCAI
and service information referenced above. The FAA is issuing this NPRM
after determining that 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. This proposed AD would
also prohibit the installation of affected parts.
[[Page 54948]]
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 694 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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Up to 37 work-hours x $85 per hour = Up $0 Up to $3,145.............. Up to $2,182,630.
to $3,145.
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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.
Estimated Costs of On-Condition Actions
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Cost per
Labor cost Parts cost product
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37 work-hours x $85 per hour = $3,145. * $4,000 $7,145
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* The FAA has received no definitive data on which to base the cost
estimates for the parts specified in this proposed 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 of the costs of
this proposed 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
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:
Bombardier, Inc.: Docket No. FAA-2023-1710; Project Identifier MCAI-
2023-00243-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 28, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc., Model CL-600-2B16 (601-3A,
601-3R, and 604 Variants) 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 the Kidde Aerospace and Defense Service Bulletin
[[Page 54949]]
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 the
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.
(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 specify 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#d6effb978085fb979f84fbe1e5e6fb979b999596b0b7b7f8b1b9a0"><span class="__cf_email__" data-cfemail="033a2e4255502e424a512e3430332e424e4c40436562622d646c75">[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 Chirayu Gupta,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7300; email <a href="/cdn-cgi/l/email-protection#88b1a5e9fefba5e6f1e9ebe7a5ebe7fbc8eee9e9a6efe7fe"><span class="__cf_email__" data-cfemail="e7deca869194ca899e868488ca848894a7818686c9808891">[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#b7d6d499cec2dbf7d6d2c5d8998bd697dfc5d2d18a" 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#d6b0a4f8bfb8a5a6b3b5a2bfb9b896b8b7a4b7f8b1b9a0"><span class="__cf_email__" data-cfemail="d0b6a2feb9bea3a0b5b3a4b9bfbe90beb1a2b1feb7bfa6">[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 August 3, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-17000 Filed 8-11-23; 8:45 am]
BILLING CODE 4910-13-P
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