[Federal Register Volume 87, Number 203 (Friday, October 21, 2022)]
[Rules and Regulations]
[Pages 63935-63938]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-22332]


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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; 
Amendment 39-22189; AD 2022-20-05]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: The FAA is adopting 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 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 AD requires 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 AD would also require repetitive testing of the rudder PCU load 
limiter for correct functioning, and applicable corrective actions. The 
FAA is issuing this AD to address the unsafe condition on these 
products.

DATES: This AD is effective November 25, 2022.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of November 25, 
2022.

ADDRESSES: For 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 bombardier.com">[email protected]bombardier.com; website 
bombardier.com. 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 
regulations.gov under Docket No. FAA-2022-0603.

Examining the AD Docket

    You may examine the AD docket at regulations.gov under 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 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.

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 [email protected].

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-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-
3A, 601-3R, and 604 Variants) airplanes. The NPRM published in the 
Federal Register on June 9, 2022 (87 FR 35125). The NPRM was prompted 
by TCCA AD CF-2021-33, dated October 6, 2021, issued by Transport 
Canada Civil Aviation (TCCA), which is the aviation authority for 
Canada, (referred to after this as the MCAI).
    In the NPRM, the FAA proposed to 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, 
the FAA also proposed to require repetitive testing of the rudder PCU 
load limiter for correct functioning, and applicable corrective 
actions. The FAA is issuing 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.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2022-0603.

[[Page 63936]]

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from NetJets and one individual. The 
commenters noted the following typographical errors in the proposed AD:
     For serial numbers 5701 through 5988, the service bulletin 
reference should be ``605-27-010'' instead of ``650-27-010.''
     For serial numbers 6050 through 6158, the service bulletin 
reference should be ``650-27-003'' instead of ``605-27-003.''
    The FAA has corrected these errors in the Related Service 
Information section and in figure 1 to paragraph (g) of this AD.

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 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 Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information.
     Bombardier Service Bulletin 604-27-039, Revision 01, dated 
April 6, 2021.
     Bombardier Service Bulletin 600-0776, dated December 7, 
2020.
     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.
     Bombardier Service Bulletin 605-27-010, dated December 7, 
2020.
     Bombardier Service Bulletin 650-27-003, 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.

Costs of Compliance

    The FAA estimates that this AD affects 379 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this 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 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
------------------------------------------------------------------------
                                                             Cost per
              Labor cost                   Parts cost        product
------------------------------------------------------------------------
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

    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.

[[Page 63937]]

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:

2022-20-05 Bombardier, Inc.: Amendment 39-22189; Docket No. FAA-
2022-0603; Project Identifier MCAI-2021-01093-T.

(a) Effective Date

    This airworthiness directive (AD) is effective November 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 issuing 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] TR21OC22.000


[[Page 63938]]



(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 600-1302-43 or 
P/N 600-1302-53 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) Additional 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 at 
regulations.gov under 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 [email protected].

(k) 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) Bombardier Service Bulletin 604-27-039, Revision 01, dated 
April 6, 2021.
    (ii) Bombardier Service Bulletin 600-0776, dated December 7, 
2020.
    (iii) Bombardier Service Bulletin 601-0648, dated December 7, 
2020.
    (iv) Bombardier Service Bulletin 605-27-010, dated December 7, 
2020.
    (v) Bombardier Service Bulletin 650-27-003, dated December 7, 
2020.
    (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 bombardier.com">[email protected]bombardier.com; website 
bombardier.com.
    (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 [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on September 15, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2022-22332 Filed 10-20-22; 8:45 am]
BILLING CODE 4910-13-P


