[Federal Register Volume 87, Number 104 (Tuesday, May 31, 2022)]
[Rules and Regulations]
[Pages 32295-32303]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-11531]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0787; Project Identifier MCAI-2021-00252-T; 
Amendment 39-22048; AD 2022-10-10]
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 of a wing stall (wing drop/un-commanded roll) 
during a landing flare. This AD requires revising the existing airplane 
flight manual (AFM) to incorporate a limitation and procedure for the 
wing anti-ice (WAI) system in order to mitigate the risk of ice 
accumulation on the wing leading edges. The FAA is issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective July 5, 2022.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of July 5, 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 [email protected]; internet 
https://www.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 on the internet at https://www.regulations.gov by searching 
for and locating Docket No. FAA-2021-0787.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0787; 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, 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: Chirayu Gupta, 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

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued TCCA AD CF-2021-06, dated February 26, 
2021 (TCCA AD CF-2021-06) (also referred to after this as the Mandatory 
Continuing Airworthiness Information, or the MCAI), to correct an 
unsafe condition 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. You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0787.
    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 September 15, 2021 (86 FR 51279). The NPRM was 
prompted by a report of a wing stall (wing drop/un-commanded roll) 
during a landing flare. The NPRM proposed to require revising the 
existing AFM to incorporate a limitation and procedure for the WAI 
system in order to mitigate the risk of ice accumulation on the wing 
leading edges. The FAA is issuing this AD to address ice accumulation 
on the wing leading edges, which could result in a wing stall during 
landing and consequent reduced controllability of the airplane. See the 
MCAI for additional background information.

Comments

    The FAA gave the public the opportunity to participate in 
developing this final rule. The FAA received no comments on the NPRM or 
on the determination of the cost to the public.

Conclusion

    The FAA reviewed the relevant data and determined that air safety 
and the public interest require adopting this final rule as proposed, 
except for minor editorial changes.
    The FAA has determined that these minor changes:

     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information, which 
specifies a revised AFM limitation and procedure for the WAI system in 
order to mitigate the risk of ice accumulation on the wing leading 
edge. These documents are distinct since they apply to different 
airplane configurations.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section of the Canadair Challenger AFM, 
Product Publication No. 600, Revision A114, dated April 16, 2020.
     Sub-section C., Icing Conditions During Flight, of Chapter 
3., SYSTEMS OPERATIONS--ANTI-ICE, of the Canadair Challenger AFM, 
Product Publication No. 600, Revision A114, dated April 16, 2020.

[[Page 32296]]

     Sub-section I., Before Landing, of Chapter 42., 
CONSOLIDATED CHECK LIST, of the NORMAL PROCEDURES section, of the 
Canadair Challenger AFM, Product Publication No. 600, Revision A114, 
dated April 16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 4., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, Product Support Publication (PSP) No. 600-1, Revision 106, dated 
April 16, 2020.
     Sub-section C., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the Canadair Challenger AFM, 
Product Support Publication (PSP) No. 600-1, Revision 106, dated April 
16, 2020.
     Sub-section I., Before Landing, of Chapter 23., 
CONSOLIDATED CHECK LIST, of the NORMAL PROCEDURES section, of the 
Canadair Challenger AFM, Product Support Publication (PSP) No. 600-1, 
Revision 106, dated April 16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601-1A, Revision 123, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Canadair Challenger AFM, PSP No. 601-1A, Revision 123, dated April 
16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601-1A-1, Revision 82, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Bombardier Canadair Challenger AFM, PSP No. 601-1A-1, Revision 82, 
dated April 16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601-1B, Revision 86, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Canadair Challenger AFM, PSP No. 601-1B, Revision 86, dated April 
16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601-1B-1, Revision 84, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Bombardier Canadair Challenger AFM, PSP No. 601-1B-1, Revision 84, 
dated April 16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601A-1, Revision 106, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Canadair Challenger AFM, PSP No. 601A-1, Revision 106, dated April 
16, 2020.
     Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601A-1-1, Revision 95, dated April 16, 2020.
     Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, of 
the Bombardier Canadair Challenger AFM, PSP No. 601A-1-1, Revision 95, 
dated April 16, 2020.
     Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
604 AFM, Publication No. PSP 604-1, Revision 116, dated December 18, 
2019. (For obtaining the limitation and procedure for the Bombardier 
Challenger 604 AFM, Publication No. PSP 604-1, use Document 
Identification No. CH 604 AFM.)
     Sub-section M., Icing Conditions During Flight, of Section 
04-14, Ice and Rain Protection, of Chapter 4--NORMAL PROCEDURES, of the 
Bombardier Challenger 604 AFM, Publication No. PSP 604-1, Revision 116, 
dated December 18, 2019. (For obtaining the limitation and procedure 
for the Bombardier Challenger 604 AFM, Publication No. PSP 604-1, use 
Document Identification No. CH 604 AFM.)
     Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
605 AFM, Publication No. PSP 605-1, Revision 54, dated December 18, 
2019. (For obtaining the limitation and procedure for the Bombardier 
Challenger 605 AFM, Publication No. PSP 605-1, use Document 
Identification No. CH 605 AFM.)
     Sub-section M., Icing Conditions During Flight, of Section 
04-14, Ice and Rain Protection, of Chapter 4--NORMAL PROCEDURES, of the 
Bombardier Challenger 605 AFM, Publication No. PSP 605-1, Revision 54, 
dated December 18, 2019. (For obtaining the limitation and procedure 
for the Bombardier Challenger 605 AFM, Publication No. PSP 605-1, use 
Document Identification No. CH 605 AFM.)
     Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
650 AFM, Publication No. PSP 650-1, Revision 19, dated December 18, 
2019. (For obtaining the limitation and procedure for the Bombardier 
Challenger 650 AFM, Publication No. PSP 650-1, use Document 
Identification No. CH 650 AFM.)
     Sub-section M., Icing Conditions During Flight, of Section 
04-14, Ice and Rain Protection, of Chapter 4--NORMAL PROCEDURES, of the 
Bombardier Challenger 650 AFM, Publication No. PSP 650-1, Revision 19, 
dated December 18, 2019. (For obtaining the limitation and procedure 
for the Bombardier Challenger 650 AFM, Publication No. PSP 650-1, use 
Document Identification No. CH 650 AFM.)
    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 619 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

[[Page 32297]]



                                      Estimated Costs for Required Actions
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                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85.............................              $0              $85          $52,615
----------------------------------------------------------------------------------------------------------------

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.

Adoption of 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:

2022-10-10 Bombardier, Inc.: Amendment 39-22048; Docket No. FAA-
2021-0787; Project Identifier MCAI-2021-00252-T.

(a) Effective Date

    This airworthiness directive (AD) is effective July 5, 2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., airplanes, certificated in 
any category, as identified in paragraphs (c)(1) through (3) of this 
AD.
    (1) Model CL-600-1A11 (600) airplanes having serial numbers (S/
Ns) 1001 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; and 6050 through 6153 
inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 30, Ice and Rain 
Protection.

(e) Unsafe Condition

    This AD was prompted by a report of a wing stall during a 
landing flare. Photographs after landing showed that the airplane 
had mixed ice on the leading edges of the wings; therefore, it was 
determined that during descent the wing anti-ice (WAI) system had 
been OFF because the ice detector did not detect ice. The FAA is 
issuing this AD to address ice accumulation on the wing leading 
edges, which could result in a wing stall during landing and 
consequent reduced controllability of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Airplane Flight Manual (AFM) Revision

    Within 60 days after the effective date of this AD: Revise the 
existing AFM to incorporate the specified sections of the Bombardier 
or Canadair Challenger AFM revision limitations and procedures for 
the WAI system specified in figure 1 to paragraph (g) of this AD.
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(h) 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

[[Page 32302]]

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; fax 516-794-5531. 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.

(i) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) TCCA AD CF-2021-06, dated February 26, 2021, for related 
information. This MCAI may be found in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-
2021-07871.
    (2) For more information about this AD, contact Chirayu Gupta, 
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].

(j) 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) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
Airplane Flight Manual (AFM), Product Publication No. 600, Revision 
A114, dated April 16, 2020.
    (ii) Sub-section C., Icing Conditions During Flight, of Chapter 
3., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Canadair Challenger AFM, Product Publication No. 600, 
Revision A114, dated April 16, 2020.
    (iii) Sub-section I., Before Landing, of Chapter 42., 
CONSOLIDATED CHECK LIST, of the NORMAL PROCEDURES section, of the 
Canadair Challenger AFM, Product Publication No. 600, Revision A114, 
dated April 16, 2020.
    (iv) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 4., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, Product Support Publication (PSP) No. 600-1, Revision 106, 
dated April 16, 2020.
    (v) Sub-section C., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Canadair Challenger AFM, PSP No. 600-1, Revision 106, dated 
April 16, 2020.
    (vi) Sub-section I., Before Landing, of Chapter 23., 
CONSOLIDATED CHECK LIST, of the NORMAL PROCEDURES section, of the 
Canadair Challenger AFM, PSP No. 600-1, Revision 106, dated April 
16, 2020.
    (vii) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601-1A, Revision 123, dated April 16, 2020.
    (viii) Sub-section E., Icing Conditions During Flight, of 
Chapter 4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES 
section, of the Canadair Challenger AFM, PSP No. 601-1A, Revision 
123, dated April 16, 2020.
    (ix) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601-1A-1, Revision 82, dated April 16, 2020.
    Note 1 to paragraph (j)(2)(ix): The List of Effective Pages 
contains a page date error for page i of the LIMITATIONS Contents. 
The page date identified is in the List of Effective Pages is 
October 26, 2009; the date specified on page i is April 16, 2020.
    (x) Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Bombardier Canadair Challenger AFM, PSP No. 601-1A-1, 
Revision 82, dated April 16, 2020.
    (xi) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601-1B, Revision 86, dated April 16, 2020.
    (xii) Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Canadair Challenger AFM, PSP No. 601-1B, Revision 86, dated 
April 16, 2020.
    (xiii) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601-1B-1, Revision 84, dated April 16, 2020.
    (xiv) Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Bombardier Canadair Challenger AFM, PSP No. 601-1B-1, 
Revision 84, dated April 16, 2020.
    (xv) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Canadair Challenger 
AFM, PSP No. 601A-1, Revision 106, dated April 16, 2020.
    (xvi) Sub-section E., Icing Conditions During Flight, of Chapter 
4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES section, 
of the Canadair Challenger AFM, PSP No. 601A-1, Revision 106, dated 
April 16, 2020.
    (xvii) Sub-sub section (2), Wing Anti-ice System, of sub-section 
I., Operation in Icing Conditions, of Chapter 3., OPERATING 
LIMITATIONS, of the LIMITATIONS section, of the Bombardier Canadair 
Challenger AFM, PSP No. 601A-1-1, Revision 95, dated April 16, 2020.
    (xviii) Sub-section E., Icing Conditions During Flight, of 
Chapter 4., SYSTEMS OPERATIONS--ANTI-ICE, of the NORMAL PROCEDURES 
section, of the Bombardier Canadair Challenger AFM, PSP No. 601A-1-
1, Revision 95, dated April 16, 2020.
    (xix) Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
604 AFM, Publication No. PSP 604-1, Revision 116, dated December 18, 
2019.
    Note 2 to paragraph (j)(2)(xix): For obtaining the limitation 
and procedure specified in paragraphs (j)(2)(xix) and (xx) of this 
AD for the Bombardier Challenger 604 AFM, Publication No. PSP 604-1, 
use Document Identification No. CH 604 AFM.
    (xx) Sub-section M., Icing Conditions During Flight, of Section 
04-14, Ice and Rain Protection, of Chapter 4--NORMAL PROCEDURES, of 
the Bombardier Challenger 604 AFM, Publication No. PSP 604-1, 
Revision 116, dated December 18, 2019.
    (xxi) Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
605 AFM, Publication No. PSP 605-1, Revision 54, dated December 18, 
2019.
    Note 3 to paragraph (j)(2)(xxi): For obtaining the limitation 
and procedure specified in paragraphs (j)(2)(xxi) and (xxii) of this 
AD for the Bombardier Challenger 605 AFM, Publication No. PSP 605-1, 
use Document Identification No. CH 605 AFM.
    (xxii) Sub-section M., Icing Conditions During Flight, of 
Section 04-14, Ice and Rain Protection, of Chapter 4--NORMAL 
PROCEDURES, of the Bombardier Challenger 605 AFM, Publication No. 
PSP 605-1, Revision 54, dated December 18, 2019.
    (xxiii) Sub-sub section B., Wing Anti-ice System, of sub-section 
4., Operation in Icing Conditions, of Section 02-04, Operating 
Limitations, of Chapter 2--LIMITATIONS, of the Bombardier Challenger 
650 AFM, Publication No. PSP 650-1, Revision 19, dated December 18, 
2019.
    Note 4 to paragraph (j)(2)(xxiii): For obtaining the limitation 
and procedure specified in paragraphs (j)(2)(xxiii) and (xxiv) of 
this AD for the Bombardier Challenger 650 AFM, Publication No. PSP 
650-1, use Document Identification No. CH 650 AFM.
    (xxiv) Sub-section M., Icing Conditions During Flight, of 
Section 04-14, Ice and Rain Protection, of Chapter 4--NORMAL 
PROCEDURES, of the Bombardier Challenger 650 AFM, Publication No. 
PSP 650-1, Revision 19, dated December 18, 2019.
    (3) For service information identified in this AD, contact 
Bombardier Business Aircraft Customer Response Center, 400 
C[ocirc]te-

[[Page 32303]]

Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 
514-855-2999; email [email protected]; internet https://www.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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on May 6, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2022-11531 Filed 5-27-22; 8:45 am]
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