Document ID: FAA-2023-0169-0005
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: Bombardier, Inc., Airplanes
Posted Date: 2023-07-03T04:00Z

[Federal Register Volume 88, Number 126 (Monday, July 3, 2023)]
[Rules and Regulations]
[Pages 42593-42598]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-14001]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-0169; Project Identifier MCAI-2022-00462-T; 
Amendment 39-22460; AD 2023-12-02]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. 
This AD was prompted by a determination that new or more restrictive 
airworthiness

[[Page 42594]]

limitations are necessary. This AD requires revising the existing 
maintenance or inspection program, as applicable, to incorporate more 
restrictive airworthiness limitations. The FAA is issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective August 7, 2023.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of August 7, 
2023.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2023-0169; 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.
    Material Incorporated by Reference:
     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-2023-0169.

FOR FURTHER INFORMATION CONTACT: Gabriel Kim, Aviation Safety Engineer, 
FAA, 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 BD-700-1A10 and -1A11 airplanes. The NPRM published in the 
Federal Register on February 27, 2023 (88 FR 12276). The NPRM was 
prompted by AD CF-2022-15, dated April 7, 2022, issued by Transport 
Canada, which is the aviation authority for Canada (referred to after 
this as the MCAI). The MCAI states that during a design review, it was 
discovered that three candidate certification maintenance requirements 
(CCMRs) which were dispositioned as maintenance review board report 
(MRBR) tasks had reached or exceeded the limit for escalation and that 
exceeding the CCMR limitations could result in unsafe conditions. The 
MCAI also states that Bombardier issued certification maintenance 
requirements (CMRs) to prevent escalation and reduce the interval, as 
applicable, for these tasks, which consist of a functional test of the 
landing-gear emergency extension; an operational test of the brake 
shutoff valve; and a visual check of the passenger-door vent-flap 
mechanism.
    In the NPRM, the FAA proposed to require revising the existing 
maintenance or inspection program as applicable to incorporate more 
restrictive airworthiness limitations. The FAA is issuing this AD to 
address the following unsafe conditions:
     Dormant failure of the landing gear emergency extension 
system, which could lead to failure to extend the landing gear when 
normal gear extension has failed. This unsafe condition, if not 
addressed, could result in an annunciated failure to extend both main 
landing gears or all landing gears.
     Dormant failure of the brake shut off valve in the open 
state. This unsafe condition, if not addressed, could result in 
uncommanded braking during takeoff.
     Dormant failure of the vent flap assembly where it fails 
in the closed position, which could result in the failure to prevent 
the initiation of cabin pressurization when the passenger door is not 
fully closed, latched and locked. This unsafe condition, if not 
addressed, could result in the passenger door opening under pressure on 
ground or during flight.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2023-0169.

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from an individual who supported the NPRM 
without change.
    The FAA received additional comments from NetJets. The following 
presents the comments received on the NPRM and the FAA's response to 
each comment.

Request for Clarification on Repetitive Intervals

    NetJets requested that the FAA clarify the repetitive intervals for 
the CMR tasks after initial accomplishment. NetJets pointed to the 
language in paragraph B of Transport Canada AD CF-2022-15, which states 
that after doing the initial actions at the time specified in Table 1 
of Transport Canada AD CF-2022-15 (similar to Figure 1 to paragraph (g) 
of this AD), accomplishing the CMR tasks are to be done at the 
intervals specified in the applicable TLMC manual identified in Table 2 
of the Transport Canada AD CF-2022-15 (similar to Figure 2 to paragraph 
(g) of this AD).
    The FAA agrees that the repetitive interval is not specified in 
this AD; however, operators can find this information in the 
corresponding TLMC as identified in Figure 2 to paragraph (g) of this 
AD. Although Transport Canada AD CF-2022-15 requires both revising the 
maintenance program to include limitations, and doing certain 
repetitive actions and/or maintaining CDCCLs, this AD only requires the 
revision of the maintenance program. Requiring a revision of the 
maintenance program rather than requiring individual repetitive actions 
or maintaining CDCCLs requires operators to record AD compliance only 
at the time the revision to the program is made. Repetitive actions or 
maintaining the CDCCLs specified in the airworthiness limitations must 
be complied with in accordance with 14 CFR 91.403(c). This AD has not 
been changed in this regard.

Request To Clarify Initial Compliance Time for Certain Airplanes

    NetJets requested clarification on initial compliance times for 
airplanes having more than 1,550 flight hours but have not previously 
accomplished the specific CMR or associated airplane maintenance manual 
(AMM) task.
    The FAA agrees to clarify. For an airplane that has more than 1,550 
flight hours, but has not previously accomplished an associated task, 
the initial compliance time is within 30 days after the effective date 
of this AD. Paragraph (g) of this AD specifies the initial compliance 
time is within the applicable time specified in Figure 1 to paragraph 
(g) of this AD, or within 30 days after the effective date of this AD, 
whichever occurs later. For example, for task 32-34-00-101, an airplane 
that has more than 1,550 flight hours is beyond the initial compliance 
time specified in Figure 1 to paragraph (g) of the AD, so the ``within 
30 days after the effective date of this AD'' would come later. This AD 
has not been changed in this regard.

Conclusion

    This product has been approved by the aviation authority of another

[[Page 42595]]

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 
comments 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, 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 the following AMM tasks from Bombardier.
     Tasks 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension;'' 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve;'' and 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism;'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global Express Time Limits/Maintenance Checks (TLMC), 
Publication No. BD-700 TLMC, Revision 34, dated March 1, 2022. (For 
obtaining the tasks for Bombardier Global Express TLMC, Publication No. 
BD-700 TLMC, use Document Identification No. GL 700 TLMC.)
     Tasks 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension;'' 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve;'' and 52-11-00-101, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism;'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global Express XRS TLMC, Publication No. BD-700 XRS TLMC, 
Revision 21, dated March 1, 2022. (For obtaining the tasks for 
Bombardier Global Express XRS TLMC, Publication No. BD-700 XRS TLMC, 
use Document Identification No. GL XRS TLMC.)
     Tasks 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension;'' 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve;'' and 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism;'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global 5000 TLMC, Publication No. BD-700 TLMC, Revision 25, 
dated March 1, 2022. (For obtaining the tasks for Bombardier Global 
5000 TLMC, Publication No. BD-700 TLMC, use Document Identification No. 
GL 5000 TLMC.)
     Tasks 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension;'' 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve;'' and 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism;'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global 5000 Featuring Global Vision Flight Deck (GVFD) TLMC, 
Publication No. GL 5000 GVFD TLMC, Revision 15, dated March 1, 2022. 
(For obtaining the tasks for Bombardier Global 5000 Featuring GVFD 
TLMC, Publication No. GL 5000 GVFD TLMC, use Document Identification 
No. GL 5000 GVFD TLMC.)
     Tasks 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension;'' 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve;'' and 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism;'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global 6000 TLMC, Publication No. GL 6000 TLMC, Revision 15, 
dated March 1, 2022. (For obtaining the tasks for Bombardier Global 
6000 TLMC, Publication No. GL 6000 TLMC, use Document Identification 
No. GL 6000 TLMC.)
    This service information specifies more restrictive airworthiness 
limitations for CMRs. These documents are distinct since they apply to 
different airplane models in different 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, if adopted as proposed, would 
affect 413 airplanes of U.S. registry. The FAA estimates the following 
costs to comply with this AD:
    The FAA has determined that revising the maintenance or inspection 
program takes an average of 90 work-hours per operator, although the 
agency recognizes that this number may vary from operator to operator. 
Since operators incorporate maintenance or inspection program changes 
for their affected fleet(s), the FAA has determined that a per-operator 
estimate is more accurate than a per-airplane estimate. Therefore, the 
agency estimates the average total cost per operator to be $7,650 (90 
work-hours x $85 per work-hour).

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:

2023-12-02 Bombardier, Inc.: Amendment 39-22460; Docket No. FAA-
2023-0169; Project Identifier MCAI-2022-00462-T.

[[Page 42596]]

(a) Effective Date

    This airworthiness directive (AD) is effective August 7, 2023.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11 airplanes, certificated in any category, having serial 
numbers 9002 through 9860 inclusive, 9862 through 9871 inclusive, 
9873 through 9879 inclusive, 60005, 60024, 60030, 60032, 60037, 
60043, 60045, 60049, 60056, 60057, 60061 and 60068.

(d) Subject

    Air Transport Association (ATA) of America Code 05, Time Limits/
Maintenance Checks.

(e) Unsafe Condition

    This AD was prompted by a determination that more restrictive 
airworthiness limitations are necessary. The FAA is issuing this AD 
to address the unsafe conditions identified in paragraphs (e)(1) 
through (3) of this AD.
    (1) Dormant failure of the landing gear emergency extension 
system, which could lead to failure to extend the landing gear when 
normal gear extension has failed. This unsafe condition, if not 
addressed, could result in an annunciated failure to extend both 
main landing gears or all landing gears.
    (2) Dormant failure of the brake shut off valve in the open 
state. This unsafe condition, if not addressed, could result in 
uncommanded braking during take-off.
    (3) Dormant failure of the vent flap assembly where it fails in 
the closed position, which could result in the failure to prevent 
the initiation of cabin pressurization when the passenger door is 
not fully closed, latched and locked. This unsafe condition, if not 
addressed, could result in the passenger door opening under pressure 
on ground or during flight.

(f) Compliance

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

(g) Maintenance or Inspection Program Revision

    Within 30 days from the effective date of this AD, revise the 
existing maintenance or inspection program, as applicable, to 
incorporate the information specified in the certification 
maintenance requirements (CMR) tasks identified in Figure 1 to 
paragraph (g) of this AD of Part 2, ``Airworthiness Limitations,'' 
of the applicable Time Limits/Maintenance Checks (TLMC) manuals 
identified in Figure 2 to paragraph (g) of this AD. The initial 
compliance time for doing the tasks is at the applicable time 
specified in Figure 1 to paragraph (g) of this AD, or within 30 days 
after the effective date of this AD, whichever occurs later.

Figure 1 to paragraph (g)--New CMR Tasks
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[GRAPHIC] [TIFF OMITTED] TR03JY23.003

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Figure 2 to paragraph (g)--Applicable TLMCs
[GRAPHIC] [TIFF OMITTED] TR03JY23.004

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(h) No Alternative Actions or Intervals

    After the existing maintenance or inspection program has been 
revised as required by paragraph (g) of this AD, no alternative 
actions (e.g., inspections) or intervals may be used unless the 
actions or intervals are approved as an alternative method of 
compliance (AMOC) in accordance with the procedures specified in 
paragraph (i)(1) of this AD.

(i) 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 of the 
International Validation Branch, mail it to ATTN: Program Manager,

[[Page 42598]]

Continuing Operational Safety, at the address identified in 
paragraph (j)(2) of this AD or email to: [email protected]. If 
mailing information, also submit information by email. 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 or Bombardier, Inc.'s Transport 
Canada Design Approval Organization (DAO). If approved by the DAO, 
the approval must include the DAO-authorized signature.

(j) Additional Information

    (1) Refer to Transport Canada AD CF-2022-15, dated April 7, 
2022, for related information. This Transport Canada AD may be found 
in the AD docket at regulations.gov under Docket No. FAA-2023-0169.
    (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 [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) Task 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global Express Time Limit/Maintenance Check manual 
(TLMC), Publication No. BD-700 TLMC, Revision 34, dated March 1, 
2022.
    Note 1 to paragraph (k)(2)(i): For obtaining the tasks specified 
in paragraphs (k)(2)(i) through (iii) of this AD for Bombardier 
Global Express TLMC, Publication No. BD-700 TLMC, Revision 34, dated 
March 1, 2022, use Document Identification No. GL 700 TLMC.
    (ii) Task 32-43-25-101, ``Operational Test of the Brake Shutoff 
Valve,'' of Part 2, ``Airworthiness Limitations,'' of the Bombardier 
Global Express TLMC, Publication No. BD-700 TLMC, Revision 34, dated 
March 1, 2022.
    (iii) Task 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global Express TLMC, Publication No. BD-700 TLMC, 
Revision 34, dated March 1, 2022.
    (iv) Task 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global Express XRS TLMC, Publication No. BD-700 XRS 
TLMC, Revision 21, dated March 1, 2022.
    Note 2 to paragraph (k)(2)(iv): For obtaining the tasks 
specified in paragraphs (k)(2)(iv) through (vi) of this AD for 
Bombardier Global Express XRS TLMC, Publication No. BD-700 XRS TLMC, 
use Document Identification No. GL XRS TLMC.
    (v) Task 32-43-25-101, ``Operational Test of the Brake Shutoff 
Valve,'' of Part 2, ``Airworthiness Limitations,'' of the Bombardier 
Global Express XRS TLMC, Publication No. BD-700 XRS TLMC, Revision 
21, dated March 1, 2022.
    (vi) Task 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global Express XRS TLMC, Publication No. BD-700 XRS 
TLMC, Revision 21, dated March 1, 2022.
    (vii) Task 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 5000 TLMC, Publication No. BD-700 TLMC, 
Revision 25, dated March 1, 2022.
    Note 3 to paragraph (k)(2)(vii): For obtaining the tasks 
specified in paragraphs (k)(2)(vii) through (ix) of this AD for 
Bombardier Global 5000 TLMC, Publication No. BD-700 TLMC, use 
Document Identification No. GL 5000 TLMC.
    (viii) Task 32-43-25-101, ``Operational Test of the Brake 
Shutoff Valve,'' of Part 2, ``Airworthiness Limitations,'' of the 
Bombardier Global 5000 TLMC, Publication No. BD-700 TLMC, Revision 
25, dated March 1, 2022.
    (ix) Task 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 5000 TLMC, Publication No. BD-700 TLMC, 
Revision 25, dated March 1, 2022.
    (x) Task 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 5000 Featuring Global Vision Flight Deck 
(GVFD) TLMC, Publication No. GL 5000 GVFD TLMC, Revision 15, dated 
March 1, 2022.
    Note 4 to paragraph (k)(2)(x): For obtaining the tasks specified 
in paragraphs (k)(2)(x) through (xii) of this AD for Bombardier 
Global 5000 Featuring GVFD TLMC, Publication No. GL 5000 GVFD TLMC, 
use Document Identification No. GL 5000 GVFD TLMC.
    (xi) Task 32-43-25-101, ``Operational Test of the Brake Shutoff 
Valve,'' of Part 2, ``Airworthiness Limitations,'' of the Bombardier 
Global 5000 Featuring GVFD TLMC, Publication No. GL 5000 GVFD TLMC, 
Revision 15, dated March 1, 2022.
    (xii) Task 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 5000 Featuring GVFD, Publication No. GL 5000 
GVFD TLMC, Revision 15, dated March 1, 2022.
    (xiii) Task 32-34-00-101, ``Functional Test of the Landing-Gear 
Emergency Extension,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 6000 TLMC, Publication No. GL 6000 TLMC, 
Revision 15, dated March 1, 2022.
    Note 5 to paragraph (k)(2)(xiii): For obtaining the tasks 
specified in paragraphs (xiii) through (xv) of this AD for 
Bombardier Global 6000 TLMC, Publication No. GL 6000 TLMC, use 
Document Identification No. GL 6000 TLMC.
    (xiv) Task 32-43-25-101, ``Operational Test of the Brake Shutoff 
Valve,'' of Part 2, ``Airworthiness Limitations,'' of the Bombardier 
Global 6000 TLMC, Publication No. GL 6000 TLMC, Revision 15, dated 
March 1, 2022.
    (xv) Task 52-11-00-106, ``Visual Check of the Passenger-Door 
Vent-Flap Mechanism,'' of Part 2, ``Airworthiness Limitations,'' of 
the Bombardier Global 6000 TLMC, Publication No. GL 6000 TLMC, 
Revision 15, dated March 1, 2022.
    (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 June 12, 2023.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2023-14001 Filed 6-30-23; 8:45 am]
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