Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes, 93157-93162 [2024-27591]
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Federal Register / Vol. 89, No. 228 / Tuesday, November 26, 2024 / Rules and Regulations
referred to in Boeing Alert Requirements
Bulletin B787–81205–SB320048–00 RB, Issue
001, dated November 20, 2023.
(h) Exceptions to Service Information
Specifications
Where the Compliance Time column of the
table in the ‘‘Compliance’’ paragraph of
Boeing Alert Requirements Bulletin B787–
81205–SB320048–00 RB, Issue 001, dated
November 20, 2023, refers to the Issue 001
date of Requirements Bulletin B787–81205–
SB320048–00 RB, this AD requires using the
effective date of this AD.
(i) Parts Installation Prohibition
As of the effective date of this AD, no
person may install a drag brace lower lock
link assembly, part number 513Z2010–501
and serial number 19ZHQ00772,
19ZHQ00773, 19ZHQ00890, or 19ZHQ00891,
on any airplane.
(j) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, AIR–520, Continued
Operational Safety 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 the attention of the person
identified in paragraph (k)(1) of this AD.
Information may be emailed to: AMOC@
faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by The Boeing Company
Organization Designation Authorization that
has been authorized by the Manager, AIR–
520, Continued Operational Safety Branch,
FAA, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
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(k) Related Information
(1) For more information about this AD,
contact Joseph Hodgin, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–3962;
email: joseph.j.hodgin@faa.gov.
(2) Material identified in this AD that is not
incorporated by reference is available at the
address specified in paragraph (l)(3) of this
AD.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the material listed in this paragraph
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as
applicable to do the actions required by this
AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin
B787–81205–SB320048–00 RB, Issue 001,
dated November 20, 2023.
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(ii) [Reserved]
(3) For the material identified in this AD,
contact Boeing Commercial Airplanes,
Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110–
SK57, Seal Beach, CA 90740–5600; telephone
562–797–1717; website myboeingfleet.com.
(4) 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.
(5) 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-locationsoremailfr.inspection@nara.gov.
Issued on October 24, 2024.
Peter A. White,
Deputy Director, Integrated Certificate
Management Division, Aircraft Certification
Service.
[FR Doc. 2024–27596 Filed 11–25–24; 8:45 am]
BILLING CODE 4910–13–P
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
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
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.
SUMMARY:
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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
TC.AirworthinessDirectives-Consignes
denavigabilite.TC@tc.gc.ca. 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, Québec J7N 3C6,
Canada; telephone 450–476–7676; email
a220_crc@abc.airbus; 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 9-avsnyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
DATES:
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Federal Register / Vol. 89, No. 228 / Tuesday, November 26, 2024 / Rules and Regulations
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
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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
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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.
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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
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Federal Register / Vol. 89, No. 228 / Tuesday, November 26, 2024 / Rules and Regulations
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
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16:25 Nov 25, 2024
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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
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93159
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.
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Federal Register / Vol. 89, No. 228 / Tuesday, November 26, 2024 / Rules and Regulations
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.
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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 workhours × $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
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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 ×
$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
1. The authority citation for part 39
continues to read as follows:
■
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Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by:
a. Removing Airworthiness Directive
(AD) 2023–05–08, Amendment 39–
22377 (88 FR 20751, April 7, 2023); and
■ 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
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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.
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(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.
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Jkt 265001
(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: AMOC@faa.gov.
(i) Before using any approved AMOC,
notify your appropriate principal inspector,
PO 00000
Frm 00015
Fmt 4700
Sfmt 4700
93161
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 9-avs-nyaco-cos@faa.gov.
(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 TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca;
website at tc.canada.ca/en/aviation.
(7) For Airbus Canada Limited Partnership
material identified in this AD, contact Airbus
Canada Limited Partnership, 13100 HenriFabre Boulevard, Mirabel, Québec J7N 3C6,
Canada; telephone 450–476–7676; email
a220_crc@abc.airbus; website
a220world.airbus.com.
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Federal Register / Vol. 89, No. 228 / Tuesday, November 26, 2024 / Rules and Regulations
(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 fr.inspection@
nara.gov.
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
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2024–1692; Project
Identifier MCAI–2024–00050–T; Amendment
39–22878; AD 2024–22–07]
RIN 2120–AA64
Airworthiness Directives; De Havilland
Aircraft of Canada Limited (Type
Certificate Previously Held by
Bombardier, Inc.) Airplanes
assembly failure resulted from a factory
assembly error, which occurred on a
limited number of fuse/shuttle valves.
The assembly error can cause valve
deformation leading to premature wear,
and eventually fuse/shuttle valve
failure. This condition, if not corrected,
could result in the loss of powered
landing gear extension/retraction,
outboard and inboard spoilers, nose
wheel steering, and normal braking, and
possibly a runway excursion.
In the NPRM, the FAA proposed to
require inspecting the fuse/shuttle valve
serial numbers, and replacing certain
fuse/shuttle valves, as specified in
Transport Canada AD CF–2024–01. 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–2024–1692.
SUPPLEMENTARY INFORMATION:
ALPA stated the compliance time of
8,000 flight hours or 48 months
whichever occurs first after the effective
date of the proposed AD is excessive for
such unsafe condition, that could result
in the loss of powered landing gear
extension/retraction, outboard and
inboard spoilers, nose wheel steering,
normal braking, and possibly a runway
excursion. The FAA infers that ALPA is
requesting the FAA reduce the
compliance time.
The FAA does not agree with the
request. The FAA has determined that
Transport Canada’s compliance time
calculation is adequate. The low
probability of a critical event is due to
the single occurrence and high flight
hours. In addition, multiple isolation
valves can effectively mitigate hydraulic
fluid leaks. After considering all the
available information, the FAA has
determined that the compliance time, as
proposed, represents an appropriate
interval of time in which the required
actions can be performed in a timely
manner within the affected fleet, while
still maintaining an adequate level of
safety. Additionally, the FAA notes that
there has been only one event of an inservice aircraft, and in that event, the
aircraft landed safely. With only one
event and the high amount of flight
hours in the fleet, the probability of the
AGENCY:
Background
The FAA is adopting a new
airworthiness directive (AD) for certain
De Havilland Aircraft of Canada Limited
Model DHC–8–401 and –402 airplanes.
This AD was prompted by a report of an
in-flight event where isolation valve
caution messages were received. This
AD requires inspecting the fuse/shuttle
valve serial numbers, and replacing
certain fuse/shuttle valves, as specified
in a Transport Canada AD, which is
incorporated by reference (IBR). 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.
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2024–1692; 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
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to certain De Havilland Aircraft of
Canada Limited Model DHC–8–401 and
–402 airplanes. The NPRM published in
the Federal Register on June 21, 2024
(89 FR 51988). The NPRM was
prompted by AD CF–2024–01, dated
January 11, 2024, issued by Transport
Canada, which is the aviation authority
for Canada (Transport Canada AD CF–
2024–01) (also referred to as the MCAI).
The MCAI states that an in-service event
was reported where the crew received a
number two isolation valve (ISO #2)
caution message followed by a number
one isolation valve (ISO #1) caution
message. The landing gear was extended
via an alternate extension system as the
crew prepared for landing. Upon
landing, the crew used the emergency
brake to stop the airplane. The airplane
stopped safely within the runway limits.
Subsequent maintenance activity
discovered an external leak from the
main landing gear (MLG) brake
assembly, and it was found that the
fuse/shuttle valve assembly did not
function properly. Further investigation
revealed that the fuse/shuttle valve
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
SUMMARY:
lotter on DSK11XQN23PROD with RULES1
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
TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca.
You may find this material on the
Transport Canada website at
tc.canada.ca/en/aviation.
• 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–2024–1692.
FOR FURTHER INFORMATION CONTACT:
Gabriel Kim, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone: 516–
228–7300; email: 9-avs-nyaco-cos@
faa.gov.
VerDate Sep<11>2014
16:25 Nov 25, 2024
Jkt 265001
PO 00000
Frm 00016
Fmt 4700
Sfmt 4700
Discussion of Final Airworthiness
Directive
Comments
The FAA received a comment from
Air Line Pilots Association,
International (ALPA). The following
presents the comment received on the
NPRM and the FAA’s response to the
comment.
Request To Reduce Compliance Time
E:\FR\FM\26NOR1.SGM
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]]>Agencies
[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]
-----------------------------------------------------------------------
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.
-----------------------------------------------------------------------
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
