Proposed Rule2022-12256
Airworthiness Directives; Bombardier, Inc., Airplanes
Primary source
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Published
June 9, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a report that some rudder power control unit (PCU) load limiters were found in service with the crimping missing from the end cap; therefore, the pilot command from the load limiter might not transmit correctly. This proposed AD would require a one-time inspection of the rudder PCU load limiters for correct crimping of the end cap, and replacing any defective rudder PCU load limiter. For certain airplanes, this proposed AD would also require repetitive testing of the rudder PCU load limiter for correct functioning, and applicable corrective actions. 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 111 (Thursday, June 9, 2022)</title>
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[Federal Register Volume 87, Number 111 (Thursday, June 9, 2022)]
[Proposed Rules]
[Pages 35125-35128]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-12256]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0603; Project Identifier MCAI-2021-01093-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-600-1A11 (600), CL-600-2A12
(601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes.
This proposed AD was prompted by a report that some rudder power
control unit (PCU) load limiters were found in service with the
crimping missing from the end cap; therefore, the pilot command from
the load limiter might not transmit correctly. This proposed AD would
require a one-time inspection of the rudder PCU load limiters for
correct crimping of the end cap, and replacing any defective rudder PCU
load limiter. For certain airplanes, this proposed AD would also
require repetitive testing of the rudder PCU load limiter for correct
functioning, and applicable corrective actions. 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 July 25,
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 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#2e4f4d00575b426e4f4b5c41004c41434c4f5c4a474b5c004d4143"><span class="__cf_email__" data-cfemail="a7c6c489ded2cbe7c6c2d5c889c5c8cac5c6d5c3cec2d589c4c8ca">[email protected]</span></a>; internet <a href="https://www.bombardier.com">https://www.bombardier.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.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0603; 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.
FOR FURTHER INFORMATION CONTACT: Elizabeth Dowling, 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#7f46521e090c5211061e1c10521c100c3f191e1e51181009"><span class="__cf_email__" data-cfemail="635a4e0215104e0d1a02000c4e000c10230502024d040c15">[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-2022-0603; Project Identifier
MCAI-2021-01093-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 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
Elizabeth Dowling, 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#d8e1f5b9aeabf5b6a1b9bbb7f5bbb7ab98beb9b9f6bfb7ae"><span class="__cf_email__" data-cfemail="390014584f4a145740585a56145a564a795f5858175e564f">[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 Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued TCCA AD CF-2021-33, dated October 6,
2021 (also referred to after this as the MCAI), to correct an unsafe
condition for certain
[[Page 35126]]
Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-
600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. You may examine
the MCAI in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2022-0603.
This proposed AD was prompted by a report that some rudder PCU load
limiters were found in service with the crimping missing from the end
cap; therefore, the pilot command from the load limiter might not
transmit correctly. The FAA is proposing this AD to address defective
rudder PCU load limiters, which could result in incorrect transmission
of the pilot command, and loss of control of the rudder. See the MCAI
for additional background information.
Related Service Information Under 1 CFR Part 51
Bombardier has issued the following service information.
<bullet> Bombardier Service Bulletin 604-27-039, Revision 01, dated
April 6, 2021.
<bullet> Bombardier Service Bulletin 600-0776, dated December 7,
2020.
<bullet> Bombardier Service Bulletin 601-0648, dated December 7,
2020.
This service information describes procedures for a one-time
inspection of the rudder PCU load limiters for correct crimping of the
end cap, and replacing any defective PCU load limiter. These documents
are distinct because they apply to different airplane configurations.
Bombardier has also released the following service information.
<bullet> Bombardier Service Bulletin 605-27-003, dated December 7,
2020.
<bullet> Bombardier Service Bulletin 650-27-010, dated December 7,
2020.
This service information describes procedures for repetitive
testing of certain PCU load limiters for proper functioning and
applicable corrective actions (performing the one-time inspection of
the rudder PCU load limiters for correct crimping of the end cap, and
replacing any defective PCU load limiter). This service information
also describes procedures for a one-time inspection of the rudder PCU
load limiters for correct crimping of the end cap, and replacing any
defective PCU load limiter, which terminates the repetitive tests.
These documents are distinct because they apply to different airplane
configurations. 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 AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in the service information already described.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 379 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 2 work-hours x $85 per hour = $0 Up to $170................... Up to $64,430.
Up to $170.
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The FAA estimates the following costs to do any necessary on-
condition replacement that would be required based on the results of
any required inspection. The FAA has no way of determining the number
of aircraft that might need this on-condition action:
Estimated Costs of On-Condition Actions
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Cost per
Labor cost Parts cost product
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10 work-hours x $85 per hour = $850 $50 $900
(per rudder PCU load limiter)........
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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,
[[Page 35127]]
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-2022-0603; Project Identifier MCAI-
2021-01093-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by July 25, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Bombardier, Inc. airplanes certificated in
any category, identified in paragraphs (c)(1) through (3) of this
AD.
(1) Model CL-600-1A11 (600) airplanes having serial numbers (S/
Ns) 1004 through 1085 inclusive.
(2) Model CL-600-2A12 (601) airplanes having S/Ns 3001 through
3066 inclusive.
(3) Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants)
airplanes having S/Ns 5001 through 5194 inclusive, 5301 through 5665
inclusive, 5701 through 5988 inclusive, 6050 through 6158 inclusive,
and 6160 through 6162 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight
Controls.
(e) Unsafe Condition
This AD was prompted by a report that some rudder power control
unit (PCU) load limiters were found in service with the crimping
missing from the end cap; therefore, the pilot command from the load
limiter might not transmit correctly. The FAA is proposing this AD
to address defective rudder PCU load limiters, which could result in
incorrect transmission of the pilot command, and loss of control of
the rudder.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Replacement for Certain Airplanes
At the applicable time specified in paragraph (g)(1) or (2) of
this AD, inspect each rudder PCU load limiter having part number (P/
N) 600-91302-43 or P/N 600-91302-53 for correct crimping of the end
cap, in accordance with paragraph 2.B., Part A, of the
Accomplishment Instructions of the applicable service information
specified in figure 1 to paragraph (g) of this AD. If the crimping
is missing from any end cap, before further flight, replace the
defective rudder PCU load limiter, in accordance with paragraph
2.C., Part B, of the Accomplishment Instructions of the applicable
service information specified in figure 1 to paragraph (g) of this
AD.
(1) For Model CL-600-1A11 airplanes having S/Ns 1004 through
1085 inclusive; Model CL-600-2A12 airplanes having S/Ns 3001 through
3066 inclusive; and Model CL-600-2B16 airplanes having S/Ns 5001
through 5194 inclusive: Inspect within 800 flight hours after the
effective date of this AD.
(2) For Model CL-600-2B16 airplanes having S/Ns 5301 through
5665 inclusive: Inspect within 2,200 flight hours after the
effective date of this AD.
[GRAPHIC] [TIFF OMITTED] TP09JN22.008
[[Page 35128]]
(h) Repetitive Testing, Inspection, and Replacement for Certain
Airplanes
For Model CL-600-2B16 airplanes having S/Ns 5701 through 5988
inclusive, 6050 through 6158 inclusive, and 6160 through 6162
inclusive, do the actions specified in paragraphs (h)(1) and (2) of
this AD.
(1) Within 1,000 flight hours after the effective date of this
AD, test each rudder PCU load limiter for correct functioning, in
accordance with paragraph 2.B., Part A, of the Accomplishment
Instructions of the applicable service information specified in
figure 1 to paragraph (g) of this AD. Repeat the test thereafter at
intervals not to exceed 800 flight hours until the inspection
required by paragraph (h)(2) of this AD has been accomplished. If
any rudder PCU load limiter fails any test, before further flight,
do the inspection specified in paragraph (h)(2) of this AD.
(2) Within 3,400 flight hours after the effective date of this
AD, inspect each rudder PCU load limiter having P/N 600-91302-43 or
P/N 600-91302-53 for correct crimping of the end cap, in accordance
with paragraph 2.C., Part B, of the Accomplishment Instructions of
the applicable service information specified in figure 1 to
paragraph (g) of this AD. If the crimping is missing from any end
cap, before further flight, replace the defective rudder PCU load
limiter, in accordance with paragraph 2.D., Part C, of the
Accomplishment Instructions of the applicable service information
specified in figure 1 to paragraph (g) of this AD. Accomplishment of
this inspection terminates the repetitive testing required by
paragraph (h)(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
Bombardier, Inc.'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-2021-33, dated October 6, 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-2022-0603.
(2) For more information about this AD, contact Elizabeth
Dowling, 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#4b72662a3d386625322a2824662824380b2d2a2a652c243d"><span class="__cf_email__" data-cfemail="3d04105c4b4e1053445c5e52105e524e7d5b5c5c135a524b">[email protected]</span></a>.
(3) For 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#87e6e4a9fef2ebc7e6e2f5e8a9e5e8eae5e6f5e3eee2f5a9e4e8ea"><span class="__cf_email__" data-cfemail="076664297e726b47666275682965686a656675636e62752964686a">[email protected]</span></a>; internet
<a href="https://www.bombardier.com">https://www.bombardier.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 May 31, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-12256 Filed 6-8-22; 8:45 am]
BILLING CODE 4910-13-P
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