```

[Federal Register Volume 89, Number 228 (Tuesday, November 26, 2024)]
[Rules and Regulations]
[Pages 93157-93162]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-27591]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2024-1285; Project Identifier MCAI-2023-01146-T; 
Amendment 39-22872; AD 2024-22-01]
RIN 2120-AA64

Airworthiness Directives; Airbus Canada Limited Partnership (Type 
Certificate Previously Held by C Series Aircraft Limited Partnership 
(CSALP); Bombardier, Inc.) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2023-05-
08, which applied to certain Airbus Canada Limited Partnership Model 
BD-500-1A10 and BD-500-1A11 airplanes. AD 2023-05-08 required revising 
the existing maintenance or inspection program, as applicable, to 
incorporate new or more restrictive airworthiness limitations. This AD 
was prompted by a determination that new or more restrictive 
airworthiness limitations are necessary. This AD continues to require 
certain actions in AD 2023-05-08 and requires revising the existing 
maintenance or inspection program, as applicable, to incorporate new or 
more restrictive airworthiness limitations, as specified in a Transport 
Canada AD, which is incorporated by reference. The FAA is issuing this 
AD to address the unsafe condition on these products.

DATES: This AD is effective December 31, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 31, 
2024.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of May 
12, 2023 (88 FR 20751, April 7, 2023).
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of March 
30, 2021 (86 FR 10799, February 23, 2021).

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2024-1285; 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 Transport Canada material identified in this AD, 
contact Transport Canada, Transport Canada National Aircraft 
Certification, 159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; 
telephone 888-663-3639; email [email protected]. You may find this material on the 
Transport Canada website at tc.canada.ca/en/aviation.
     For Airbus Canada Limited Partnership material identified 
in this AD, contact Airbus Canada Limited Partnership, 13100 Henri-
Fabre Boulevard, Mirabel, Qu[eacute]bec J7N 3C6, Canada; telephone 450-
476-7676; email [email protected]; website a220world.airbus.com.
     You may view this material 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-2024-1285.>

FOR FURTHER INFORMATION CONTACT: Gabriel D. Kim, Aviation Safety 
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
telephone 516-228-7343; email [email protected].

SUPPLEMENTARY INFORMATION:

[[Page 93158]]

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to supersede AD 2023-05-08, Amendment 39-22377 (88 FR 
20751, April 7, 2023) (AD 2023-05-08). AD 2023-05-08 applied to certain 
Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 
airplanes. AD 2023-05-08 required revising the existing maintenance or 
inspection program, as applicable, to incorporate new or more 
restrictive airworthiness limitations. The FAA issued AD 2023-05-08 to 
address reduced structural integrity of the airplane or reduced 
controllability of the airplane.
    The NPRM published in the Federal Register on April 29, 2024 (89 FR 
33300). The NPRM was prompted by AD CF-2023-69, dated October 5, 2023, 
issued by Transport Canada, which is the aviation authority for Canada 
(Transport Canada AD CF-2023-69) (also referred to as the MCAI).
    In the NPRM, the FAA proposed to continue to require certain 
actions in AD 2023-05-08 and require revising the existing maintenance 
or inspection program, as applicable, to incorporate new or more 
restrictive airworthiness limitations. The FAA is issuing this AD to 
address the unsafe condition on these products.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2024-1285.

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from Air Line Pilots Association, 
International (ALPA), who supported the NPRM without change.
    The FAA received additional comments from Delta Air Lines (Delta). 
The following presents the comments received on the NPRM and the FAA's 
response to each comment.

Request To Incorporate by Reference the MCAI

    Delta requested that the FAA update the language in the proposed AD 
to mandate Transport Canada AD CF-2023-69 via incorporation by 
reference (IBR) instead of mandating Airbus Canada Limited Partnership 
A220 Airworthiness Limitations, BD500-3AB48-11400-02, Issue 017.01, 
dated August 17, 2023, by IBR. Delta stated this would allow operators 
to incorporate the following language: ``The use of superseding Interim 
Revisions or later revisions of the AWL Publication, approved by TC, is 
acceptable for compliance [. . .]'' in Transport Canada AD CF-2023-69. 
Delta noted that transitioning to IBR of the Transport Canada AD versus 
the IBR of a specific manufacturer airworthiness limitation (AWL) 
revision is necessary as AWL Issue 017.02 has already been published 
and AWL Issue 018.00 is estimated to be released later in 2024. Delta 
noted it could be at risk of grounding its fleet while waiting for an 
alternative method of compliance (AMOC) to allow incorporating more up 
to date AWL revisions.
    The FAA agrees to mandate Transport Canada AD CF-2023-69 via IBR in 
this AD for the reasons provided by the commenter. Incorporating by 
reference the MCAI instead of the service information does not change 
the required action to incorporate Airbus Canada Limited Partnership 
A220 Airworthiness Limitations, BD500-3AB48-11400-02, Issue 017.01, 
dated August 17, 2023, into their maintenance or inspection program. 
Instead incorporating by reference of the MCAI relieves the burden of 
applying for AMOCs to use later approved revisions of the service 
information. By mandating Transport Canada AD CF-2023-69 via IBR, 
operators are allowed to use applicable later AWL revisions to comply 
with the requirements of this AD. Transport Canada AD CF-2023-69 
includes paragraph C., which accepts the use of later revisions, 
approved by Transport Canada, of the referenced AWL document for 
compliance. The FAA concurs this change will minimize any disruption to 
an operator's existing maintenance or inspection program due to any 
potential delays in an AMOC approval.
    The FAA has revised paragraph (k) of this AD to incorporate by 
reference Transport Canada AD CF-2023-69 and added paragraph (l) to 
this AD to specify exceptions to Transport Canada AD CF-2023-69. The 
exceptions in paragraph (l) of this AD are standard for ADs that 
incorporate MCAI by reference.
    The FAA has also revised paragraph (m) of this AD (paragraph (l) of 
the proposed AD) to refer to Transport Canada AD CF-2023-69.
    Although Delta indicated that all of Airbus Canada Limited 
Partnership A220 Airworthiness Limitations, BD500-3AB48-11400-02, Issue 
017.01, dated August 17, 2023, should be mandated via the IBR of 
Transport Canada AD CF-2023-69, the FAA has still excluded Section 03, 
``Candidate CMR Limitations--General.'' Paragraph (g) of this AD is for 
the CCMRs and paragraph (k) of this AD incorporates all AWLs except for 
CCMRs, as specified in the paragraph (l)(3) of this AD.

Request To Allow AMOCs

    Delta requested that the FAA add a paragraph to allow the use of 
AMOCs approved for AD 2023-05-08 as AMOCs to the proposed AD paragraphs 
that require revising the existing maintenance or inspection program. 
Delta stated it has received many AMOCs for AD 2023-05-08, including 
one that approves the use of A220 AWL Issue 017.02, or later revisions 
approved by Transport Canada or Airbus Canada Limited Partnership's 
Transport Canada Design Approval Organization (DAO), except for the use 
of candidate certification maintenance requirements (CCMRs). Delta 
noted that the CCMRs in Table 2 of Airbus Canada Limited Partnership 
A220 Airworthiness Limitations, BD500-3AB48-11400-02, Issue 011.00, 
dated June 18, 2020, are still mandatory for airplanes with an original 
certificate of airworthiness issued on or before June 18, 2020. Delta 
concluded that the extension of these AMOCs to the proposed AD would 
allow Delta to continue to use the latest AWL revision and not be 
responsible for requesting/receiving an AMOC between the AD's 
publication date and the AD's effective date, preventing the grounding 
of its fleet.
    The FAA agrees that previous AMOCs are acceptable for certain 
paragraphs in this AD. The FAA has added paragraph (n)(1)(ii) to this 
AD to allow AMOCs approved previously for AD 2023-05-08 as AMOCs for 
the corresponding provisions of paragraphs (g) and (i) of this AD. The 
FAA has also added paragraph (n)(1)(iii) to this AD to allow AMOCs 
approved previously for AD 2023-05-08 as AMOCs for the corresponding 
provisions of paragraph (k) of this AD, except for AMOCs that allow the 
use of revisions earlier than Airbus Canada Limited Partnership A220 
Airworthiness Limitations, BD500-3AB48-11400-02, Issue 017.01, dated 
August 17, 2023.

Request To Remove the Requirement Mandating CCMRs

    Delta requested that the FAA remove the requirement mandating the 
CCMR section of the AWL document. Delta noted that new airplanes are 
required by the CFR to have the corresponding AWL revision incorporated 
into their maintenance program. Delta stated the A220 AWL revisions 
have a CCMR section and thus are required to be incorporated into its 
maintenance program. Delta pointed out that the FAA has stated CCMR 
sections should not be mandated by the FAA (as specified in the FAA's 
response to comments to the NPRM for AD 2023-05-08). Delta

[[Page 93159]]

concluded their maintenance program is split as follows:
     Newly delivered airplanes: not affected by an AD, CCMRs 
are required.
     Airplanes delivered after AWL Issue 011.00: CCMR are not 
required per ADs or CFR.
     Airplanes delivered before AWL Issue 011.00: CCMRs are 
required per ADs.
    The FAA agrees to clarify. In AD 2023-05-08, the FAA explained that 
equivalent airplane maintenance manual (AMM) tasks may be mandated in 
lieu of CCMRs in future rulemaking. The FAA also explained that CCMRs 
that were previously mandated can continue to be mandated. This AD only 
mandates the previously mandated CCMRs from AD 2021-04-05, Amendment 
39-21426 (86 FR 10799, February 23, 2021), as specified in the retained 
requirements of paragraph (g) of this AD. For this AD, there are no new 
CCMRs. For future rulemaking where the MCAI includes new CCMRs, the FAA 
will mandate equivalent AMM tasks in lieu of the CCMRs.
    Regarding Delta's comment that their maintenance program is split, 
the FAA notes that, for Model BD-500-1A10 and BD-500-1A11 airplanes, 
the CCMRs are mandated either by an AD action or the CFR as follows:
     Newly delivered airplanes with an original airworthiness 
certificate or original export certificate of airworthiness issued 
after August 17, 2023: These airplanes are not affected by this AD. 
However, complying with the airworthiness limitations specified as part 
of the approved type design and referenced on the type certificate data 
sheet is required per the CFR (14 CFR 91.403(c)). These airplanes were 
certified with AWL documents that include CCMRs.
     Airplanes delivered after AWL Issue 011.00 (airplane with 
an original airworthiness certificate or original export certificate of 
airworthiness issued after June 18, 2020, but on or before August 17, 
2023): These airplanes are affected by this AD. This AD does not 
require incorporating CCMRs for these airplanes but the CCMRs in the 
AWL delivered with the airplane are required by the CFR. These 
airplanes must comply with the airworthiness limitations specified as 
part of the approved type design and referenced on the type certificate 
data sheet; these airplanes were certified with AWL Issue 011.00 (or 
later issues). Those AWL issues include the CCMRs that operators must 
comply with.
     Airplanes delivered before AWL Issue 011.00 (airplanes 
with an original airworthiness certificate or original export 
certificate of airworthiness issued on or before June 18, 2020) are 
affected by this AD, which requires the CCMRs.
    The FAA has not changed this AD regarding this issue.

Request To Add Exception Paragraph

    Delta requested that the FAA add an exception paragraph to the 
proposed AD to allow FAA operators to omit the 10,000-flight hour life 
limit for the fuel pump cartridge. In addition, Delta requested that 
Airbus Canada's latest petition (submitted Dec. 2023) to update 
Exemption 16779A be approved. Delta noted that the FAA has published 
Docket No.: FAA-2016-4198; Summary Notice No. 2024-18, which summarizes 
the petition to request relief from the 10,000-flight hour life limit 
for the fuel pump cartridge.
    Delta stated that in Airbus Canada Limited Partnership A220 
Airworthiness Limitations, BD500-3AB48-11400-02, Issue 017.00, Airbus 
Canada removed, for European Union Aviation Safety Agency (EASA) and 
Transport Canada operators, the 13,000 flight hour life limit for all 
fuel boost pump cartridges with manufacturer part number (MPN) 9C208-3 
except for ``SN AAM4613 to AAM4622; AAF8325; AAF8326; AAJ6639; AAK5612; 
AAL6169; AAL6170; AAL6173; AAL6174 (PRE SB 9C208-3-28-001)''. Delta 
stated that Airbus Canada was not able to remove the 10,000-flight hour 
life limit for FAA operators as FAA Exemption 16779A still requires it.
    Delta explained that these fuel boost pump cartridges, MPN 9C208-3, 
cost approximately $85,000/pump, and there are two pumps per airplane. 
In addition, Delta explained that it takes approximately 3 years to 
reach the 10,000-flight hour life limit. At its present fleet size, 
Delta estimated that it must spend a minimum of $11.7 million every 3 
years to replace the fuel boost pump cartridges and once its fleet is 
fully delivered, it will spend approximately $24.6 million every 3 
years. Delta concluded that it is unreasonable to force FAA operators 
to be burdened with additional costs of compliance over that of other 
operators who are operating under Airbus Canada Limited Partnership 
A220 Airworthiness Limitations, BD500-3AB48-11400-02, Issue No. 017.00.
    Delta proposed that the FAA include the following exception to 
paragraph (l) of the proposed AD: ``Where TCCA AD CF-2023-69 paragraph 
A. requires incorporation of the AWL, this AD does not require a 10,000 
FH life limit on Part Number 9C208-3 (Cartridge, boost pump) unless it 
falls within the effectivity definition in Parker SB 9C208-3-28-001.''
    Delta requested that if the FAA does not agree to add an exception 
as stated above, then the Costs of Compliance section of the NPRM be 
updated to include these exceptional material costs.
    The FAA does not agree with the commenter's requests. The FAA 
cannot grant or deny petitions for exemptions within an AD as that 
process is outside the scope of this AD action. In addition, the FAA 
has determined that this AD cannot include relief from the fuel boost 
pump cartridge life limits in an AD in regards to the petition for 
relief from FAA Exemption 16779A.
    Regarding the costs, the FAA does not agree to revise the Cost of 
Compliance section of this AD to include the cost of accomplishing 
repetitive replacements. The FAA recognizes such costs are part of 
complying with airworthiness limitations, but the costs of 
accomplishing maintenance actions specified in airworthiness 
limitations are not directly required by this AD. Instead, this AD 
requires operators to revise their existing maintenance or inspection 
program, as applicable, to incorporate the new airworthiness 
limitations. Compliance with any airworthiness limitation is required 
by 14 CFR 91.403(c). Therefore, compliance with the airworthiness 
limitations is not a requirement of this AD, and including the cost of 
a replacement part would be inappropriate. The FAA has not changed this 
AD regarding this issue.

Request To Clarify AMOC Process

    Delta requested clarification if an AMOC to deviate from the 
proposed AD (once published as a final rule) will be needed or if U.S. 
operators will be able to deviate from the life limit for certain fuel 
boost pump cartridges once the petition to exemption 16779A is 
published. Delta stated it believes this exemption will allow Airbus 
Canada to remove the life limit from the AWL at the next revision. 
Delta stated it may need to continue to comply with the specific AWL 
revision until the next AWL revision is published and the FAA has 
provided approval to use the latest AWL. Delta concluded that due to 
the significant operational and financial impacts, Delta would like to 
introduce this relief as soon as possible.
    The FAA agrees to clarify. Once the petition to the exemption 
16779A is approved and published, operators may request an AMOC to this 
AD, under the provisions of paragraph (n)(1) of this AD, to allow 
relief from the fuel boost pump cartridge life limits.

[[Page 93160]]

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, 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, and any other changes described previously, this AD is adopted 
as proposed in the NPRM. None of the changes will increase the economic 
burden on any operator.

Material Incorporated by Reference Under 1 CFR Part 51

    Transport Canada AD CF-2023-69 describes airworthiness limitations 
for fuel tank systems, safe life limits, and certification maintenance 
requirements.
    This AD also requires Airbus Canada Limited Partnership A220 
Airworthiness Limitations, BD500-3AB48-11400-02, Issue 014.00, dated 
February 3, 2022, which the Director of the Federal Register approved 
for incorporation by reference as of May 12, 2023 (88 FR 20751, April 
7, 2023).
    This AD also requires Airbus Canada Limited Partnership A220 
Airworthiness Limitations, BD500-3AB48-11400-02, Issue 011.00, dated 
June 18, 2020, which the Director of the Federal Register approved for 
incorporation by reference as of March 30, 2021 (86 FR 10799, February 
23, 2021).
    This material 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 99 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:
    The FAA estimates the total cost per operator for the retained 
actions from AD 2023-05-08 to be $7,650 (90 work-hours x $85 per work-
hour).
    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 
FAA estimates the total cost per operator for the new actions 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:
0
a. Removing Airworthiness Directive (AD) 2023-05-08, Amendment 39-22377 
(88 FR 20751, April 7, 2023); and
0
b. Adding the following new AD:

2024-22-01 Airbus Canada Limited Partnership (Type Certificate 
Previously Held by C Series Aircraft Limited Partnership (CSALP); 
Bombardier, Inc.): Amendment 39-22872; Docket No. FAA-2024-1285; 
Project Identifier MCAI-2023-01146-T.

(a) Effective Date

    This airworthiness directive (AD) is effective December 31, 
2024.

(b) Affected ADs

    This AD replaces AD 2023-05-08, Amendment 39-22377 (88 FR 20751, 
April 7, 2023) (AD 2023-05-08).

(c) Applicability

    This AD applies to Airbus Canada Limited Partnership airplanes, 
certificated in any category, as identified in paragraphs (c)(1) and 
(2) of this AD.
    (1) Model BD-500-1A10 airplanes, serial numbers 50001 and 
subsequent with an original airworthiness certificate or original 
export certificate of airworthiness issued on or before August 17, 
2023.
    (2) Model BD-500-1A11 airplanes, serial numbers 55001 and 
subsequent with an original airworthiness certificate or original 
export certificate of airworthiness issued on or before August 17, 
2023.

(d) Subject

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

(e) Reason

    This AD was prompted by a determination that new or more 
restrictive airworthiness limitations are necessary. The FAA is 
issuing this AD to address reduced structural integrity of the 
airplane or reduced controllability of the airplane.

(f) Compliance

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

(g) Retained Revision of the Existing Maintenance or Inspection 
Program, With Revised Language

    This paragraph restates the requirements of paragraph (g) of AD 
2023-05-08, with revised language. For airplanes with an original 
airworthiness certificate or original export certificate of 
airworthiness issued on or before June 18, 2020: Within 90 days 
after March 30, 2021 (the effective date of AD 2021-04-05, Amendment 
39-21426 (86 FR 10799, February 23, 2021)), revise the existing 
maintenance or inspection program, as applicable, to incorporate the 
information specified in Section 03, ``Candidate CMR Limitations--
General,'' of Airbus Canada Limited Partnership A220 Airworthiness

[[Page 93161]]

Limitations, BD500-3AB48-11400-02, Issue 011.00, dated June 18, 
2020. The initial compliance time for doing the tasks is at the time 
specified in Airbus Canada Limited Partnership A220 Airworthiness 
Limitations, BD500-3AB48-11400-02, Issue 011.00, dated June 18, 
2020, or within 90 days after March 30, 2021, whichever occurs 
later.

(h) Retained No Alternative Actions, Intervals, or Critical Design 
Configuration Control Limitations (CDCCLs), With Revised Language

    This paragraph restates the requirements of paragraph (h) of AD 
2023-05-08 with revised language. After the existing maintenance or 
inspection program has been revised as required by paragraph (g) of 
this AD, no alternative actions (e.g., inspections), intervals, or 
CDCCLs may be used unless the actions, intervals, and CDCCLs are 
approved as an alternative method of compliance.

(i) Retained Revision of the Existing Maintenance or Inspection 
Program, With a New Terminating Action

    This paragraph restates the requirements of paragraph (i) of AD 
2023-05-08, with a new terminating action. For airplanes with an 
original airworthiness certificate or original export certificate of 
airworthiness issued on or before February 3, 2022: Within 90 days 
after May 12, 2023 (the effective date of AD 2023-05-08), revise the 
existing maintenance or inspection program, as applicable, to 
incorporate the information specified in Sections 01, 
``Airworthiness limitations--Introduction;'' 02, ``Certification 
maintenance requirements--General;'' 04, ``ALI structural 
inspections--General;'' 05, ``Life limited parts--General;'' 06, 
``Fuel system limitations--General;'' 07, ``Critical design 
configuration control limitations--General;'' 08, ``Power plant 
limitations--General;'' 09, ``Structural repair limitations--
General;'' and 10, ``Limit of validity--General;'' inclusive of 
Airbus Canada Limited Partnership A220 Airworthiness Limitations, 
BD500-3AB48-11400-02, Issue 014.00, dated February 3, 2022. The 
initial compliance time for doing the tasks is at the time specified 
in Airbus Canada Limited Partnership A220 Airworthiness Limitations, 
BD500-3AB48-11400-02, Issue 014.00, dated February 3, 2022, or 
within 90 days after May 12, 2023, whichever occurs later. 
Accomplishing the revision of the existing maintenance or inspection 
program required by paragraph (k) of this AD terminates the 
requirements of this paragraph.

(j) Retained No Alternative Actions, Intervals, or CDCCLs, With a New 
Exception

    This paragraph restates the requirements of paragraph (j) of AD 
2023-05-08, with a new exception. Except as required by paragraph 
(k) of this AD, after the existing maintenance or inspection program 
has been revised as required by paragraph (i) of this AD, no 
alternative actions (e.g., inspections), intervals, or CDCCLs may be 
used unless the actions, intervals, and CDCCLs are approved as an 
alternative method of compliance (AMOC) in accordance with the 
procedures specified in paragraph (n)(1) of this AD.

(k) New Revision of the Existing Maintenance or Inspection Program

    Except as specified in paragraph (l) of this AD: Comply with all 
required actions and compliance times specified in, and in 
accordance with, Transport Canada AD CF-2023-69, dated October 5, 
2023 (Transport Canada AD CF-2023-69). Accomplishing the revision of 
the existing maintenance or inspection program required by this 
paragraph terminates the requirements of paragraph (i) of this AD.

(l) Exception to Transport Canada AD CF-2023-69

    (1) Where Transport Canada AD CF-2023-69 refers to its effective 
date, this AD requires using the effective date of this AD.
    (2) Where paragraph A. of Transport Canada AD CF-2023-69 
specifies to ``amend the TC-approved maintenance schedule,'' this AD 
requires replacing that text with ``revise the existing maintenance 
or inspection program, as applicable.''
    (3) Where paragraph A. of Transport Canada AD CF-2023-69 
specifies incorporating Airbus Canada Limited Partnership A220 
Airworthiness Limitations, BD500-3AB48-11400-02, Issue 017.01, dated 
August 17, 2023, for this AD, incorporating the information 
specified in Section 03, ``Candidate CMR Limitations--General'' of 
Airbus Canada Limited Partnership A220 Airworthiness Limitations, 
BD500-3AB48-11400-02, Issue 017.01, dated August 17, 2023, is not 
required.
    (4) The initial compliance time for doing the tasks specified in 
paragraph A. of Transport Canada AD CF-2023-69 is at the applicable 
``thresholds'' as incorporated by the requirements of paragraph A. 
of Transport Canada AD CF-2023-69, or within 90 days after the 
effective date of this AD, whichever occurs later.
    (5) This AD does not adopt paragraph B. of Transport Canada AD 
CF-2023-69.

(m) New Provisions for Alternative Actions, Intervals, or CDCCLs

    After the existing maintenance or inspection program has been 
revised as required by paragraph (k) of this AD, no alternative 
actions (e.g., inspections), intervals, or CDCCLs may be used unless 
they are approved as specified in the provisions of the ``Corrective 
Actions'' section of Transport Canada AD CF-2023-69.

(n) 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 the address identified 
in paragraph (o) of this AD. Information may be emailed to: 
[email protected].
    (i) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the responsible Flight Standards Office.
    (ii) AMOCs approved previously for AD 2023-05-08 are approved as 
AMOCs for the corresponding provisions of paragraphs (g) and (i) of 
this AD.
    (iii) AMOCs approved previously for AD 2023-05-08 are approved 
as AMOCs for the corresponding provisions of paragraph (k) of this 
AD, except AMOCs that allow issues earlier than Airbus Canada 
Limited Partnership A220 Airworthiness Limitations, BD500-3AB48-
11400-02, Issue 017.01, dated August 17, 2023.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain instructions from a manufacturer, the instructions must be 
accomplished using a method approved by the Manager, International 
Validation Branch, FAA; or Transport Canada; or Airbus Canada 
Limited Partnership's Transport Canada Design Approval Organization 
(DAO). If approved by the DAO, the approval must include the DAO-
authorized signature.

(o) Additional Information

    For more information about this AD, contact Gabriel D. Kim, 
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7343; email [email protected].

(p) 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.
    (3) The following service information was approved for IBR on 
December 31, 2024.
    (i) Transport Canada AD CF-2023-69, dated October 5, 2023.
    (ii) [Reserved]
    (4) The following service information was approved for IBR on 
May 12, 2023 (88 FR 20751, April 7, 2023).
    (i) Airbus Canada Limited Partnership A220 Airworthiness 
Limitations, BD500-3AB48-11400-02, Issue 014.00, dated February 3, 
2022.
    (ii) [Reserved]
    (5) The following service information was approved for IBR on 
March 30, 2021 (86 FR 10799, February 23, 2021).
    (i) Airbus Canada Limited Partnership A220 Airworthiness 
Limitations, BD500-3AB48-11400-02, Issue 011.00, dated June 18, 
2020.
    (ii) [Reserved]
    (6) For Transport Canada material identified in this AD, contact 
Transport Canada, Transport Canada National Aircraft Certification, 
159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888-
663-3639; email [email protected]; website at tc.canada.ca/en/
aviation.
    (7) For Airbus Canada Limited Partnership material identified in 
this AD, contact Airbus Canada Limited Partnership, 13100 Henri-
Fabre Boulevard, Mirabel, Qu[eacute]bec J7N 3C6, Canada; telephone 
450-476-7676; email [email protected]; website 
a220world.airbus.com.

[[Page 93162]]

    (8) You may view this material 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.
    (9) You may view this material at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations, or email [email protected].

    Issued on November 20, 2024.
Peter A. White,
Deputy Director, Integrated Certificate Management Division, Aircraft 
Certification Service.
[FR Doc. 2024-27591 Filed 11-25-24; 8:45 am]
BILLING CODE 4910-13-P
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