Airworthiness Directives; Airbus SAS Airplanes, 67535-67538 [2024-18628]
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Federal Register / Vol. 89, No. 162 / Wednesday, August 21, 2024 / Rules and Regulations
date of this AD, perform a general visual
inspection for cracks of the switch cover
assemblies and local areas and a functional
test of the switch cover, in accordance with
the Accomplishment Instructions of Ipeco
Service Bulletin 380–25–06, Issue 03, dated
July 17, 2024. Replace any cracked or
nonfunctional parts within 30 days after the
effective date of this AD, in accordance with
the Accomplishment Instructions of Ipeco
Service Bulletin 380–25–06, Issue 03, dated
July 17, 2024. Replacement may be delayed
provided the airplane is operated under the
provisions of Master Minimum Equipment
List item 25–11–01–0, but no later than 120
days after the effective date of this AD.
(i) Rocker Switch Cap Pull Test
For airplanes identified in paragraph (c)(1)
of this AD: Within 30 days after the effective
date of this AD, except as specified in
paragraph (k) of this AD, perform a rocker
switch cap pull test of all switch caps, in
accordance with the Accomplishment
Instructions of Ipeco Service Bulletin 380–
25–06, Issue 03, dated July 17, 2024. For any
rocker switch cap that is un-bonded or debonded (i.e., fails the test), bond the rocker
switch cap, or replace the switch and bond
the switch cap, within 30 days after the
effective date of this AD, in accordance with
the Accomplishment Instructions of Ipeco
Service Bulletin 380–25–06, Issue 03, dated
July 17, 2024. The bonding may be delayed
provided the airplane is operated under the
provisions of Master Minimum Equipment
List item 25–11–01–0, but no later than 120
days after the effective date of this AD.
(j) Seat Marking
For airplanes identified in paragraph (c)(1)
of this AD: Before further flight after
accomplishment of the applicable actions
required by paragraphs (g) through (i) of this
AD, mark the seat in accordance with the
Accomplishment Instructions of Ipeco
Service Bulletin 380–25–06, Issue 03, dated
July 17, 2024.
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(k) Exceptions to Service Bulletin
(1) Where a note in paragraph 3.a. of Part
A of the Accomplishment Instructions of
Ipeco Service Bulletin 380–25–06, Issue 03,
dated July 17, 2024, specifies to visually
inspect the switch guard (3–270 or 3–270A)
for cracks or modifications and ‘‘replace in
accordance with the CMM,’’ this AD requires
replacing that text with ‘‘replace the switch
guard before further flight in accordance with
the CMM if any crack or modification is
found.’’
(2) For any switch that has been replaced
with a switch having a bonded cap as
required by paragraph (g) of this AD, the
actions required by paragraph (i) of this AD
are not required.
(l) Parts Installation Limitation
At the applicable time specified in
paragraph (l)(1) or (2) of this AD, no person
may install, on any airplane, a seat identified
in paragraph (c)(1) of this AD, unless the seat
is marked as specified in paragraph (j) of this
AD.
(1) For airplanes in paragraph (c)(1) of this
AD: After accomplishment of all applicable
actions required by this AD.
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(2) For airplanes identified in paragraph
(c)(2) of this AD: As of the effective date of
this AD.
(m) 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 (n) 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
(ODA) 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.
(n) Related Information
For more information about this AD,
contact Brandon Lucero, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–3569;
email: Brandon.Lucero@faa.gov.
(o) 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) Ipeco Service Bulletin 380–25–06, Issue
03, dated July 17, 2024.
(ii) [Reserved]
(3) For Ipeco material identified in this AD,
contact Ipeco Holdings Limited, Aviation
Way, Southend on Sea, SS2 6UN, United
Kingdom; phone: +44 1702 545118; fax: +44
1702 540782; email: technicalsupport@
ipeco.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-locations or email fr.inspection@nara.gov.
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67535
Issued on August 2, 2024.
John P. Piccola, Jr.,
Director, Integrated Certificate Management
Division, Aircraft Certification Service.
[FR Doc. 2024–18843 Filed 8–19–24; 4:15 pm]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2024–1001; Project
Identifier MCAI–2023–01129–T; Amendment
39–22787; AD 2024–14–06]
RIN 2120–AA64
Airworthiness Directives; Airbus SAS
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all
Airbus SAS Model A350–941 and –1041
airplanes. This AD was prompted by
reports that certain engine bleed air
system (EBAS) T-Ducts may not
conform to the type design due to a
quality escape not detected during the
manufacturing process on Rolls-Royce
Trent XWB–75, Trent XWB–84, and
Trent XWB–97 engines. This AD
requires replacement of affected EBAS
T-Ducts and limits the installation of
affected parts under certain conditions,
as specified in a European Union
Aviation Safety Agency (EASA) AD,
which is incorporated by reference
(IBR). The FAA is issuing this AD to
address the unsafe condition on these
products.
SUMMARY:
This AD is effective September
25, 2024.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of September 25, 2024.
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2024–1001; 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:
DATES:
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Federal Register / Vol. 89, No. 162 / Wednesday, August 21, 2024 / Rules and Regulations
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• For EASA material identified in this
AD, contact EASA, Konrad-AdenauerUfer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email
ADs@easa.europa.eu; website
easa.europa.eu. You may find this
material on the EASA website at
ad.easa.europa.eu. It is also available at
regulations.gov under Docket No. FAA–
2024–1001.
• 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–2024–1001.
FOR FURTHER INFORMATION CONTACT: Dat
Le, Aviation Safety Engineer, FAA, 1600
Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone: 516–228–7300;
email: 9-avs-nyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to all Airbus SAS Model A350–
941 and –1041 airplanes. The NPRM
published in the Federal Register on
April 10, 2024 (89 FR 25191). The
NPRM was prompted by EASA AD
2023–0189, dated October 31, 2023,
issued by EASA, which is the Technical
Agent for the Member States of the
European Union (referred to after this as
the MCAI). The MCAI states a subsupplier to Rolls-Royce for bleed ducts
on Trent XWB–75, Trent XWB–84, and
Trent XWB–97 engines reported that
certain EBAS T-Ducts may not conform
to the type design due to a quality
escape not detected during the
manufacturing process. Affected EBAS
T-Ducts have Part Number RR03–
11011–001 and serial number listed in
the Appendix 1 of Rolls-Royce Alert
Non-Modification Service Bulletin
(NMSB) Trent XWB 36–AK870, dated
September 29, 2023.
In the NPRM, the FAA proposed to
require replacement of affected EBAS TDucts and limit the installation of
affected parts under certain conditions,
as specified in a European Union
Aviation Safety Agency (EASA) AD. The
FAA is issuing this AD to address
cracking of certain EBAS T-Ducts on
Rolls-Royce (RR) Trent XWB–75, Trent
XWB–84 and Trent XWB–97 engines.
The unsafe condition, if not addressed,
could result in cracking of the affected
part with consequent air leakage, which
VerDate Sep<11>2014
15:51 Aug 20, 2024
Jkt 262001
could result in high energy debris
release (uncontained engine rotor
failure), an uncontrolled engine fire, and
subsequent loss of control of the
airplane.
You may examine the MCAI in the
AD docket at regulations.gov under
Docket No. FAA–2024–1001.
Discussion of Final Airworthiness
Directive
Comments
The FAA received a comment from
the Air Line Pilots Association,
International (ALPA), who supported
the NPRM without change.
The FAA received additional
comments from Delta Air Lines. The
following presents the comments
received on the NPRM and the FAA’s
response to each comment.
Request for Removal of Step in
Exceptions Paragraph
Delta considered the exception in
paragraph (h)(3) of the proposed AD
unnecessary, and stated that this
exception only restricts the use of laterapproved revisions of Rolls-Royce Alert
Non-Modification Service Bulletin
TRENT XWB–36–AK870 (the NMSB).
Delta stated that putting the date of the
NMSB in the proposed AD limits the
revision that can be used to comply
with the AD, and use of later revisions
will require approval of alternative
methods of compliance (AMOCs). Delta
noted that EASA AD 2023–0189 already
defines the NMSB in the Definitions and
Ref. Publications sections, and allows
the use of later-approved revisions of
the NMSB to comply with the EASA
AD.
The FAA disagrees with removing
paragraph (h)(3) of this AD. Appendix 1
of the NMSB defines affected EBAS TDucts by part and serial number.
Because Appendix 1 may change in
future revisions of the NMSB, this AD
defines the acceptable NMSB version to
control for the identity of the affected
parts. Paragraph (h)(3) of this AD does
not otherwise affect the use of laterapproved versions for the actions
required by paragraph (1) or (2) of the
EASA AD2023–0189. The FAA agrees
that AMOC approvals may be necessary
to use a future NMSB version if the
definition of affected parts changes. The
FAA has not changed this AD in this
regard.
Request for Reporting Clarification
Delta requested adding a new
subparagraph to the ‘‘Exceptions’’
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section of the NPRM to clarify reporting
requirements. Delta stated that
paragraphs 3.A.(4) and 3.B.(4) of Trent
Service Bulletin XWB 36–AK870
require the operator to complete an
Appendix 3 form and submit it to RollsRoyce. Delta claims the ‘‘reporting
requirement’’ in an AD typically
requests findings from an inspection to
enable the manufacturer to learn more
about the cause of the unsafe condition
and determine appropriate corrective
actions. Furthermore, the Trent Service
Bulletin XWB 36–AK870, Appendix 3,
merely requests that operators inform
Rolls-Royce that the service bulletin is
completed for their airplanes and does
not specify submitting specific
information such as test or inspection
results.
The FAA agrees and has added
paragraph (i) of this AD in order to
clarify that no reporting is required.
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
EASA AD 2023–0189 specifies
procedures for replacement of affected
EBAS T-Ducts. EASA AD 2023–0189
also limits the installation of affected
parts. 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 32 airplanes of U.S. registry. The
FAA estimates the following costs to
comply with this AD:
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Federal Register / Vol. 89, No. 162 / Wednesday, August 21, 2024 / Rules and Regulations
67537
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Up to 2 work-hours × $85 per hour = $170 ..............................................................
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
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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:
15:51 Aug 20, 2024
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
2024–14–06 Airbus SAS: Amendment 39–
22787; Docket No. FAA–2024–1001;
Project Identifier MCAI–2023–01129–T.
(a) Effective Date
This airworthiness directive (AD) is
effective September 25, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS Model
A350–941 and –1041 airplanes, certificated
in any category.
(d) Subject
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.
VerDate Sep<11>2014
$128,555
PART 39—AIRWORTHINESS
DIRECTIVES
§ 39.13
Jkt 262001
Air Transport Association (ATA) of
America Code 36, Pneumatic.
(e) Unsafe Condition
This AD was prompted by reports that
certain engine bleed air system (EBAS) TDucts on Rolls-Royce Trent XWB–75, Trent
XWB–84, and Trent XWB–97 engines may
not conform to the type design due to a
quality escape not detected during the
manufacturing process. The FAA is issuing
this AD to address cracking of certain EBAS
T-Ducts on Rolls-Royce (RR) Trent XWB–75,
Trent XWB–84 and Trent XWB–97 engines.
The unsafe condition, if not addressed, could
result in cracking of the affected part with
consequent air leakage, which could result in
high energy debris release (uncontained
engine rotor failure), an uncontrolled engine
fire, and subsequent loss of control of the
airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Requirements
Except as specified in paragraphs (h) and
(i) of this AD: Comply with all required
actions and compliance times specified in,
and in accordance with, European Union
Aviation Safety Agency (EASA) AD 2023–
0189, dated October 31, 2023 (EASA AD
2023–0189).
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Cost per product
Up to $128,725 ......
Cost on U.S.
operators
Up to $4,119,200.
(h) Exceptions to EASA AD 2023–0189
(1) Where EASA AD 2023–0189 refers to its
effective date, this AD requires using the
effective date of this AD.
(2) This AD does not adopt the ‘‘Remarks’’
section of EASA AD 2023–0189.
(3) Where the definition of affected part in
EASA AD 2023–0189 specifies ‘‘as listed in
the APPENDIX 1 of the NMSB,’’ replace that
text with ‘‘as listed in the APPENDIX 1 of
Rolls-Royce ALERT Non-Modification
Service Bulletin TRENT XWB 36–AK870,
dated September 29, 2023.’’
(i) No Reporting Requirement
Although certain material referenced in
EASA AD 2023–0189 specifies to submit
certain information to the manufacturer, this
AD does not include that requirement.
(j) Special Flight Permit
Special flight permits may be issued in
accordance with 14 CFR 21.197 and 21.199
to operate the airplane to a location where an
EBAS T-Duct can be replaced, provided only
one EBAS T-Ducts requires replacement.
(k) 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 (l) of this AD. Information may be
emailed to: 9-AVS-AIR-730-AMOC@faa.gov.
Before using any approved AMOC, notify
your appropriate principal inspector, or
lacking a principal inspector, the manager of
the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, International Validation
Branch, FAA; or EASA; or Airbus SAS’s
EASA Design Organization Approval (DOA).
If approved by the DOA, the approval must
include the DOA-authorized signature.
(3) Required for Compliance (RC): Except
as required by paragraph (k)(2) of this AD, if
any material contains procedures or tests that
are identified as RC, those procedures and
tests must be done to comply with this AD;
any procedures or tests that are not identified
as RC are recommended. Those procedures
and tests that are not identified as RC may
be deviated from using accepted methods in
accordance with the operator’s maintenance
or inspection program without obtaining
approval of an AMOC, provided the
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Federal Register / Vol. 89, No. 162 / Wednesday, August 21, 2024 / Rules and Regulations
procedures and tests identified as RC can be
done and the airplane can be put back in an
airworthy condition. Any substitutions or
changes to procedures or tests identified as
RC require approval of an AMOC.
(l) Additional Information
For more information about this AD,
contact Dat Le, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone: 516–228–
7300; email: 9-avs-nyaco-cos@faa.gov.
(m) 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 this AD specifies otherwise.
(i) European Union Aviation Safety Agency
(EASA) AD 2023–0189, dated October 31,
2023.
(ii) [Reserved]
(3) For EASA AD 2023–0189, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; website
easa.europa.eu. You may find this EASA AD
on the EASA website at ad.easa.europa.eu.
(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-locations, or email fr.inspection@
nara.gov.
Issued on July 12, 2024.
Suzanne Masterson,
Deputy Director, Integrated Certificate
Management Division, Aircraft Certification
Service.
[FR Doc. 2024–18628 Filed 8–20–24; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2024–1008; Project
Identifier MCAI–2024–00080–T; Amendment
39–22783; AD 2024–14–02]
RIN 2120–AA64
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Airworthiness Directives; Dassault
Aviation Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is superseding
Airworthiness Directive (AD) 2023–02–
13, which applied to certain Dassault
SUMMARY:
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15:51 Aug 20, 2024
Jkt 262001
Aviation Model FALCON 900EX
airplanes. AD 2023–02–13 required
revising the existing maintenance or
inspection program, as applicable, to
incorporate new or more restrictive
airworthiness limitations. Since the
FAA issued AD 2023–02–13, the FAA
has determined that new or more
restrictive airworthiness limitations are
necessary. This AD continues to require
certain actions in AD 2023–02–13 and
requires revising the existing
maintenance or inspection program, as
applicable, to incorporate new or more
restrictive airworthiness limitations, as
specified in a European Union Aviation
Safety Agency (EASA) 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 September
25, 2024.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of September 25, 2024.
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of March 17, 2023 (88 FR
8740, February 10, 2023).
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2024–1008; 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 EASA material, contact EASA,
Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
website easa.europa.eu. You may find
this material on the EASA website
ad.easa.europa.eu. It is also available at
regulations.gov under Docket No. FAA–
2024–1008.
• You may view this material at the
FAA, Airworthiness Products Section,
Operational Safety Branch, 2200 South
216th Street, Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
FOR FURTHER INFORMATION CONTACT: Tom
Rodriguez, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 206–
231–3226; email tom.rodriguez@faa.gov.
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SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2023–02–13,
Amendment 39–22320 (88 FR 8740,
February 10, 2023) (AD 2023–02–13).
AD 2023–02–13 applied to certain
Dassault Aviation Model FALCON
900EX airplanes. AD 2023–02–13
required revising the existing
maintenance or inspection program, as
applicable, to incorporate new or more
restrictive airworthiness limitations.
The FAA issued AD 2023–02–13 to
address reduced structural integrity of
the airplane.
The NPRM published in the Federal
Register on April 23, 2024 (89 FR
30289). The NPRM was prompted by
AD 2024–0035, dated January 31, 2024,
issued by EASA, which is the Technical
Agent for the Member States of the
European Union (EASA AD 2024–0035)
(also referred to as the MCAI). The
MCAI states that new or more restrictive
airworthiness limitations have been
developed.
In the NPRM, the FAA proposed to
continue to require certain actions in
AD 2023–02–13 and to require revising
the existing maintenance or inspection
program, as applicable, to incorporate
new or more restrictive airworthiness
limitations, as specified in EASA AD
2024–0035. 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–2024–1008.
Discussion of Final Airworthiness
Directive
Comments
The FAA received no comments on
the NPRM or on the determination of
the cost to the public.
Conclusion
This product has been approved by
the aviation authority of another
country and is approved for operation in
the United States. Pursuant to the FAA’s
bilateral agreement with this State of
Design Authority, it has notified the
FAA of the unsafe condition described
in the MCAI referenced above. The FAA
reviewed the relevant data and
determined that air safety requires
adopting this AD as proposed.
Accordingly, the FAA is issuing this AD
to address the unsafe condition on this
product. Except for minor editorial
changes, this AD is adopted as proposed
in the NPRM. None of the changes will
increase the economic burden on any
operator.
E:\FR\FM\21AUR1.SGM
21AUR1
]]>Agencies
[Federal Register Volume 89, Number 162 (Wednesday, August 21, 2024)]
[Rules and Regulations]
[Pages 67535-67538]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-18628]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1001; Project Identifier MCAI-2023-01129-T;
Amendment 39-22787; AD 2024-14-06]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by
reports that certain engine bleed air system (EBAS) T-Ducts may not
conform to the type design due to a quality escape not detected during
the manufacturing process on Rolls-Royce Trent XWB-75, Trent XWB-84,
and Trent XWB-97 engines. This AD requires replacement of affected EBAS
T-Ducts and limits the installation of affected parts under certain
conditions, as specified in a European Union Aviation Safety Agency
(EASA) 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 September 25, 2024.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September
25, 2024.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2024-1001; 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:
[[Page 67536]]
For EASA material identified in this AD, contact EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999
000; email [email protected]; website easa.europa.eu. You may find
this material on the EASA website at ad.easa.europa.eu. It is also
available at regulations.gov under Docket No. FAA-2024-1001.
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-2024-1001.
FOR FURTHER INFORMATION CONTACT: Dat Le, Aviation Safety Engineer, FAA,
1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-
7300; email: [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Airbus SAS Model
A350-941 and -1041 airplanes. The NPRM published in the Federal
Register on April 10, 2024 (89 FR 25191). The NPRM was prompted by EASA
AD 2023-0189, dated October 31, 2023, issued by EASA, which is the
Technical Agent for the Member States of the European Union (referred
to after this as the MCAI). The MCAI states a sub-supplier to Rolls-
Royce for bleed ducts on Trent XWB-75, Trent XWB-84, and Trent XWB-97
engines reported that certain EBAS T-Ducts may not conform to the type
design due to a quality escape not detected during the manufacturing
process. Affected EBAS T-Ducts have Part Number RR03-11011-001 and
serial number listed in the Appendix 1 of Rolls-Royce Alert Non-
Modification Service Bulletin (NMSB) Trent XWB 36-AK870, dated
September 29, 2023.
In the NPRM, the FAA proposed to require replacement of affected
EBAS T-Ducts and limit the installation of affected parts under certain
conditions, as specified in a European Union Aviation Safety Agency
(EASA) AD. The FAA is issuing this AD to address cracking of certain
EBAS T-Ducts on Rolls-Royce (RR) Trent XWB-75, Trent XWB-84 and Trent
XWB-97 engines. The unsafe condition, if not addressed, could result in
cracking of the affected part with consequent air leakage, which could
result in high energy debris release (uncontained engine rotor
failure), an uncontrolled engine fire, and subsequent loss of control
of the airplane.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2024-1001.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from the Air Line Pilots Association,
International (ALPA), who supported the NPRM without change.
The FAA received additional comments from Delta Air Lines. The
following presents the comments received on the NPRM and the FAA's
response to each comment.
Request for Removal of Step in Exceptions Paragraph
Delta considered the exception in paragraph (h)(3) of the proposed
AD unnecessary, and stated that this exception only restricts the use
of later-approved revisions of Rolls-Royce Alert Non-Modification
Service Bulletin TRENT XWB-36-AK870 (the NMSB). Delta stated that
putting the date of the NMSB in the proposed AD limits the revision
that can be used to comply with the AD, and use of later revisions will
require approval of alternative methods of compliance (AMOCs). Delta
noted that EASA AD 2023-0189 already defines the NMSB in the
Definitions and Ref. Publications sections, and allows the use of
later-approved revisions of the NMSB to comply with the EASA AD.
The FAA disagrees with removing paragraph (h)(3) of this AD.
Appendix 1 of the NMSB defines affected EBAS T-Ducts by part and serial
number. Because Appendix 1 may change in future revisions of the NMSB,
this AD defines the acceptable NMSB version to control for the identity
of the affected parts. Paragraph (h)(3) of this AD does not otherwise
affect the use of later-approved versions for the actions required by
paragraph (1) or (2) of the EASA AD2023-0189. The FAA agrees that AMOC
approvals may be necessary to use a future NMSB version if the
definition of affected parts changes. The FAA has not changed this AD
in this regard.
Request for Reporting Clarification
Delta requested adding a new subparagraph to the ``Exceptions''
section of the NPRM to clarify reporting requirements. Delta stated
that paragraphs 3.A.(4) and 3.B.(4) of Trent Service Bulletin XWB 36-
AK870 require the operator to complete an Appendix 3 form and submit it
to Rolls-Royce. Delta claims the ``reporting requirement'' in an AD
typically requests findings from an inspection to enable the
manufacturer to learn more about the cause of the unsafe condition and
determine appropriate corrective actions. Furthermore, the Trent
Service Bulletin XWB 36-AK870, Appendix 3, merely requests that
operators inform Rolls-Royce that the service bulletin is completed for
their airplanes and does not specify submitting specific information
such as test or inspection results.
The FAA agrees and has added paragraph (i) of this AD in order to
clarify that no reporting is required.
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
EASA AD 2023-0189 specifies procedures for replacement of affected
EBAS T-Ducts. EASA AD 2023-0189 also limits the installation of
affected parts. 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 32 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
[[Page 67537]]
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 2 work-hours x $85 per hour $128,555 Up to $128,725............... Up to $4,119,200.
= $170.
----------------------------------------------------------------------------------------------------------------
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: General requirements.
Under that section, Congress charges the FAA with promoting safe flight
of civil aircraft in air commerce by prescribing regulations for
practices, methods, and procedures the Administrator finds necessary
for safety in air commerce. This regulation is within the scope of that
authority because it addresses an unsafe condition that is likely to
exist or develop on products identified in this rulemaking action.
Regulatory Findings
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive:
2024-14-06 Airbus SAS: Amendment 39-22787; Docket No. FAA-2024-1001;
Project Identifier MCAI-2023-01129-T.
(a) Effective Date
This airworthiness directive (AD) is effective September 25,
2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS Model A350-941 and -1041
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 36, Pneumatic.
(e) Unsafe Condition
This AD was prompted by reports that certain engine bleed air
system (EBAS) T-Ducts on Rolls-Royce Trent XWB-75, Trent XWB-84, and
Trent XWB-97 engines may not conform to the type design due to a
quality escape not detected during the manufacturing process. The
FAA is issuing this AD to address cracking of certain EBAS T-Ducts
on Rolls-Royce (RR) Trent XWB-75, Trent XWB-84 and Trent XWB-97
engines. The unsafe condition, if not addressed, could result in
cracking of the affected part with consequent air leakage, which
could result in high energy debris release (uncontained engine rotor
failure), an uncontrolled engine fire, and subsequent loss of
control of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Requirements
Except as specified in paragraphs (h) and (i) of this AD: Comply
with all required actions and compliance times specified in, and in
accordance with, European Union Aviation Safety Agency (EASA) AD
2023-0189, dated October 31, 2023 (EASA AD 2023-0189).
(h) Exceptions to EASA AD 2023-0189
(1) Where EASA AD 2023-0189 refers to its effective date, this
AD requires using the effective date of this AD.
(2) This AD does not adopt the ``Remarks'' section of EASA AD
2023-0189.
(3) Where the definition of affected part in EASA AD 2023-0189
specifies ``as listed in the APPENDIX 1 of the NMSB,'' replace that
text with ``as listed in the APPENDIX 1 of Rolls-Royce ALERT Non-
Modification Service Bulletin TRENT XWB 36-AK870, dated September
29, 2023.''
(i) No Reporting Requirement
Although certain material referenced in EASA AD 2023-0189
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(j) Special Flight Permit
Special flight permits may be issued in accordance with 14 CFR
21.197 and 21.199 to operate the airplane to a location where an
EBAS T-Duct can be replaced, provided only one EBAS T-Ducts requires
replacement.
(k) 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 (l) of this AD. Information may be emailed to: [email protected]. Before using any approved AMOC, notify your
appropriate principal inspector, or lacking a principal inspector,
the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, International
Validation Branch, FAA; or EASA; or Airbus SAS's EASA Design
Organization Approval (DOA). If approved by the DOA, the approval
must include the DOA-authorized signature.
(3) Required for Compliance (RC): Except as required by
paragraph (k)(2) of this AD, if any material contains procedures or
tests that are identified as RC, those procedures and tests must be
done to comply with this AD; any procedures or tests that are not
identified as RC are recommended. Those procedures and tests that
are not identified as RC may be deviated from using accepted methods
in accordance with the operator's maintenance or inspection program
without obtaining approval of an AMOC, provided the
[[Page 67538]]
procedures and tests identified as RC can be done and the airplane
can be put back in an airworthy condition. Any substitutions or
changes to procedures or tests identified as RC require approval of
an AMOC.
(l) Additional Information
For more information about this AD, contact Dat Le, Aviation
Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone: 516-228-7300; email: [email protected].
(m) 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 this AD specifies otherwise.
(i) European Union Aviation Safety Agency (EASA) AD 2023-0189,
dated October 31, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0189, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
[email protected]; website easa.europa.eu. You may find this EASA
AD on the EASA website at ad.easa.europa.eu.
(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-locations, or email [email protected].
Issued on July 12, 2024.
Suzanne Masterson,
Deputy Director, Integrated Certificate Management Division, Aircraft
Certification Service.
[FR Doc. 2024-18628 Filed 8-20-24; 8:45 am]
BILLING CODE 4910-13-P
