Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines, 49361-49364 [2023-15910]
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Federal Register / Vol. 88, No. 145 / Monday, July 31, 2023 / Proposed Rules
49361
ADAMS accession No./
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NAC International, Submission of Supplemental Information to the RAI for the NAC International MAGNASTOR®
Cask System Amendment No. 11, Docket No. 72–1031, dated July 15, 2022.
NAC International, Supplement to NAC’s Amendment Request for the NAC International MAGNASTOR® Cask
System Amendment No. 12, dated March 18, 2022.
NAC International, Submittal of RAI Response to Amendment Request for NAC International MAGNASTOR®
Cask System Amendment No. 12, dated April 18, 2022.
ML22196A022 (package).
ML22077A769.
ML22108A197.
Documents Related to Amendment No. 12
Proposed Certificate of Compliance No. 1031, Amendment No. 12 ............................................................................
Proposed Certificate of Compliance No. 1031, Amendment No. 12, Appendix A: Technical Specifications for the
MAGNASTOR® Storage System.
Proposed Certificate of Compliance No. 1031, Amendment No. 12, Appendix B: Technical Specifications for the
MAGNASTOR® Storage System.
Preliminary Safety Evaluation Report for NAC International, Inc. MAGNASTOR® Storage System: Certificate of
Compliance No. 1031, Docket No. 72–1031, Amendment No. 12.
NAC International, Submission of an Amendment Request for the NAC International MAGNASTOR® Cask System
Amendment No. 12, dated January 24, 2022.
NAC International, Supplement to NAC’s Amendment Request for the NAC International MAGNASTOR® Cask
System Amendment No. 12, dated March 18, 2022.
NAC International, Submittal of RAI Response to Amendment Request for NAC International MAGNASTOR®
Cask System Amendment No. 12, dated April 18, 2022.
ML22220A189.
ML22220A190.
ML22220A191.
ML22220A192.
ML22024A374.
ML22077A769.
ML22108A197.
Other Documents
User Need Memorandum for Amendment Nos. 11 and 12, and Revision to Amendment Nos. 0 through 9 for the
MAGNASTOR® Storage System, dated March 7, 2023.
Final Rule, ‘‘Storage of Spent Fuel in NRC-Approved Storage Casks at Power Reactor Sites,’’ published July 18,
1990.
Final Rule, ‘‘List of Approved Spent Fuel Storage Casks: MAGNASTOR Addition,’’ published November 21, 2008
Revision to Policy Statement, ‘‘Agreement State Program Policy Statement; Correction,’’ published October 18,
2017.
Presidential Memorandum, ‘‘Plain Language in Government Writing,’’ published June 10, 1998 ...............................
The NRC may post materials related
to this document, including public
comments, on the Federal rulemaking
website at https://www.regulations.gov
under Docket ID NRC–2023–0085. In
addition, the Federal rulemaking
website allows members of the public to
receive alerts when changes or additions
occur in a docket folder. To subscribe:
(1) navigate to the docket folder (NRC–
2023–0085); (2) click the ‘‘Subscribe’’
link; and (3) enter an email address and
click on the ‘‘Subscribe’’ link.
Dated: July 18, 2023.
For the Nuclear Regulatory Commission.
Daniel H. Dorman,
Executive Director for Operations.
[FR Doc. 2023–16145 Filed 7–28–23; 8:45 am]
ddrumheller on DSK120RN23PROD with PROPOSALS1
BILLING CODE 7590–01–P
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2023–1637; Project
Identifier MCAI–2023–00184–E]
RIN 2120–AA64
Airworthiness Directives; Rolls-Royce
Deutschland Ltd & Co KG Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for all
Rolls-Royce Deutschland Ltd & Co KG
(RRD) Model Trent 1000–A2, Trent
1000–AE2, Trent 1000–C2, Trent 1000–
CE2, Trent 1000–D2, Trent 1000–E2,
Trent 1000–G2, Trent 1000–H2, Trent
1000–J2, Trent 1000–K2, and Trent
1000–L2 engines. This proposed AD
was prompted by reports of cracking
and separation of certain low-pressure
turbine (LPT) stage 1 blade assemblies.
This proposed AD would require initial
and repetitive inspections of affected
LPT stage 1 blade assemblies for
cracking or separation and, depending
on the results of the inspections,
SUMMARY:
PO 00000
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Fmt 4702
Sfmt 4702
ML22220A150.
55 FR 29181.
73 FR 70587.
82 FR 48535.
63 FR 31885.
reduction of the inspection interval or
replacement of the LPT stage 1 blade set
and disk, as specified in a European
Union Aviation Safety Agency (EASA)
AD, which is proposed for incorporation
by reference (IBR). The FAA is
proposing this AD to address the unsafe
condition on these products.
DATES: The FAA must receive comments
on this NPRM by September 14, 2023.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
regulations.gov. Follow the instructions
for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2023–1637; 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 NPRM, the mandatory
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49362
Federal Register / Vol. 88, No. 145 / Monday, July 31, 2023 / Proposed Rules
continuing airworthiness information
(MCAI), any comments received, and
other information. The street address for
Docket Operations is listed above.
Material Incorporated by Reference:
• For EASA service information
material identified in this NPRM,
contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; phone: +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.
• You may view this service
information at the FAA, Airworthiness
Products Section, Operational Safety
Branch, 1200 District Avenue,
Burlington, MA 01803. For information
on the availability of this material at the
FAA, call (817) 222–5110.
FOR FURTHER INFORMATION CONTACT:
Sungmo Cho, Aviation Safety Engineer,
FAA, 2200 South 216th Street, Des
Moines, WA 98198; phone: (781) 238–
7241; email: sungmo.d.cho@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
FAA–2023–1637; Project Identifier
MCAI–2023–00184–E’’ at the beginning
of your comments. The most helpful
comments reference a specific portion of
the proposal, explain the reason for any
recommended change, and include
supporting data. The FAA will consider
all comments received by the closing
date and may amend this proposal
because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this NPRM.
ddrumheller on DSK120RN23PROD with PROPOSALS1
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this NPRM
contain commercial or financial
information that is customarily treated
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16:48 Jul 28, 2023
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as private, that you actually treat as
private, and that is relevant or
responsive to this NPRM, it is important
that you clearly designate the submitted
comments as CBI. Please mark each
page of your submission containing CBI
as ‘‘PROPIN.’’ The FAA will treat such
marked submissions as confidential
under the FOIA, and they will not be
placed in the public docket of this
NPRM. Submissions containing CBI
should be sent to Sungmo Cho, Aviation
Safety Engineer, FAA, 2200 South 216th
Street, Des Moines, WA 98198. Any
commentary that the FAA receives
which is not specifically designated as
CBI will be placed in the public docket
for this rulemaking.
Background
EASA, which is the Technical Agent
for the Member States of the European
Union, has issued EASA AD 2023–0027,
dated January 31, 2023 (EASA AD
2023–0027) (referred to after this as the
MCAI), to address an unsafe condition
for all RRD Model Trent 1000–A2, Trent
1000–AE2, Trent 1000–C2, Trent 1000–
CE2, Trent 1000–D2, Trent 1000–E2,
Trent 1000–G2, Trent 1000–H2, Trent
1000–J2, Trent 1000–K2 and Trent
1000–L2 engines. The MCAI states that
manufacturer inspections detected
cracking and separation of blade pairs in
the weld region of certain LPT stage 1
blade assemblies. A blade assembly
consists of a pair of blades welded
together at the outer shroud. There are
85 LPT stage 1 blade assemblies in one
set. Such cracking and separation could
cause failure of affected parts and
damage to the LPT module.
You may examine the MCAI in the
AD docket at regulations.gov under
Docket No. FAA–2023–1637.
Related Service Information Under 1
CFR Part 51
The FAA reviewed EASA AD 2023–
0027, which specifies procedures for
inspection of affected LPT stage 1 blade
assemblies and replacement of the LPT
stage 1 blade set and disk. EASA AD
2023–0027 also specifies a reduction of
the repetitive inspection intervals if
cracking or separation is detected and
meets certain criteria. 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
ADDRESSES.
FAA’s Determination
These products have been approved
by the aviation authority of another
country and are approved for operation
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Fmt 4702
Sfmt 4702
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 described above.
The FAA is issuing this NPRM after
determining that the unsafe condition
described previously is likely to exist or
develop on other products of the same
type design.
Proposed AD Requirements in This
NPRM
This proposed AD would require
accomplishing the actions specified in
the MCAI described previously, except
for any differences identified as
exceptions in the regulatory text of this
proposed.
Explanation of Required Compliance
Information
In the FAA’s ongoing efforts to
improve the efficiency of the AD
process, the FAA developed a process to
use some civil aviation authority (CAA)
ADs as the primary source of
information for compliance with
requirements for corresponding FAA
ADs. The FAA has since coordinated
with other manufacturers and CAAs to
use this process. As a result, the FAA
proposes to incorporate by reference
EASA AD 2023–0027 in the FAA final
rule. This proposed AD would,
therefore, require compliance with
EASA AD 2023–0027 in its entirety
through that incorporation, except for
any differences identified as exceptions
in the regulatory text of this proposed
AD. Using common terms that are the
same as the heading of a particular
section in the EASA AD does not mean
that operators need comply only with
that section. For example, where the AD
requirement refers to ‘‘all required
actions within the compliance times,’’
compliance with this AD requirement is
not limited to the section titled
‘‘Required Action(s) and Compliance
Time(s)’’ in EASA AD 2023–0027.
Service information required by the
EASA AD for compliance will be
available at regulations.gov by searching
for and locating Docket No. FAA–2023–
1637 after the FAA final rule is
published.
Costs of Compliance
The FAA estimates that this AD, if
adopted as proposed, would affect 26
engines installed on airplanes of U.S.
Registry.
The FAA estimates the following
costs to comply with this proposed AD:
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Federal Register / Vol. 88, No. 145 / Monday, July 31, 2023 / Proposed Rules
49363
ESTIMATED COSTS
Action
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
Inspect LPT stage 1 blade assemblies ..........
4 work-hours × $85 per hour = $340 .............
$0
$340
$8,840
The FAA estimates the following
costs to do any necessary replacements
that would be required based on the
results of the proposed inspection. The
agency has no way of determining the
number of aircraft that might need these
replacements:
ON-CONDITION COSTS
Action
Labor cost
Parts cost
Cost per
product
Replace LPT stage 1 blade set and disk .....................
4 work-hours × $85 per hour = $340 ...........................
$720,000
$720,340
Authority for This Rulemaking
List of Subjects in 14 CFR Part 39
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.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
ddrumheller on DSK120RN23PROD with PROPOSALS1
Regulatory Findings
The FAA determined that this
proposed AD would not have federalism
implications under Executive Order
13132. This proposed AD would 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 this proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Would not affect intrastate
aviation in Alaska, and
(3) Would not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
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The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
Rolls-Royce Deutschland Ltd. & Co. KG:
Docket No. FAA–2023–1637; Project
Identifier MCAI–2023–00184–E.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by September
14, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Rolls-Royce
Deutschland Ltd & Co KG (RRD) Model Trent
1000–A2, Trent 1000–AE2, Trent 1000–C2,
Trent 1000–CE2, Trent 1000–D2, Trent 1000–
E2, Trent 1000–G2, Trent 1000–H2, Trent
1000–J2, Trent 1000–K2, and Trent 1000–L2
engines.
(d) Subject
Joint Aircraft Service Component (JASC)
Code 7250, Turbine Section.
(e) Unsafe Condition
This AD was prompted by reports of
cracking and separation of certain lowpressure turbine (LPT) stage 1 blade
assemblies. The FAA is issuing this AD to
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Fmt 4702
Sfmt 4702
prevent failure of the LPT stage 1 blades. The
unsafe condition, if not addressed, could
result in high energy debris release, damage
to the airplane, and reduced control of the
airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
Except as specified in paragraphs (h) and
(i) of this AD: Perform all required actions
within the compliance times specified in,
and in accordance with, European Union
Aviation Safety Agency AD 2023–0027, dated
January 31, 2023 (EASA AD 2023–0027).
(h) Exceptions to EASA AD 2023–0027
(1) Where EASA AD 2023–0027 specifies
compliance from its effective date, this AD
requires using the effective date of this AD.
(2) This AD does not adopt the Remarks
paragraph of EASA AD 2023–0027.
(3) Where the service information
referenced in EASA AD 2023–0027 specifies
discarding the removed LP turbine stage 1
blade set, this AD requires removing the
affected part from service.
(4) Where the service information
referenced in EASA AD 2023–0027 specifies
to quarantine the removed LP turbine stage
1 rotor disc, this AD requires removing the
affected part from service.
(i) No Reporting Requirement
Although the service information
referenced in EASA AD 2023–0027 specifies
to submit certain information to the
manufacturer, this AD does not include that
requirement.
(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 local Flight Standards District Office, as
appropriate. If sending information directly
to the manager of the branch office, send it
to the attention of the person identified in
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Federal Register / Vol. 88, No. 145 / Monday, July 31, 2023 / Proposed Rules
paragraph (k) of this AD and email to: ANEAD-AMOC@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(k) Additional Information
For more information about this AD,
contact Sungmo Cho, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des
Moines, WA 98198; phone: (781) 238–7241;
email: sungmo.d.cho@faa.gov.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(i) European Union Aviation Safety Agency
AD 2023–0027, dated January 31, 2023.
(ii) [Reserved]
(3) For EASA AD 2023–0027, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; phone: +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 service information
at the FAA, Airworthiness Products Section,
Operational Safety Branch, 1200 District
Avenue, Burlington, MA 01803. For
information on the availability of this
material at the FAA, call (817) 222–5110.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
email fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on July 21, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–15910 Filed 7–28–23; 8:45 am]
BILLING CODE 4910–13–P
FEDERAL TRADE COMMISSION
16 CFR Part 465
RIN 3084–AB76
ddrumheller on DSK120RN23PROD with PROPOSALS1
Trade Regulation Rule on the Use of
Consumer Reviews and Testimonials
Federal Trade Commission.
Notice of proposed rulemaking;
request for public comment.
AGENCY:
ACTION:
The Federal Trade
Commission (‘‘FTC or ‘‘Commission’’)
commences a rulemaking to promulgate
a trade regulation rule entitled ‘‘Rule on
the Use of Consumer Reviews and
Testimonials,’’ which would prohibit
SUMMARY:
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16:48 Jul 28, 2023
Jkt 259001
certain specified unfair or deceptive acts
or practices involving consumer reviews
or testimonials. The Commission finds
such practices to be prevalent based on
the comments it received in response to
an advance notice of proposed
rulemaking and other information
discussed in this publication. The
Commission now solicits written
comment, data, and arguments
concerning the utility and scope of the
proposed trade regulation rule to
prohibit the specified unfair or
deceptive acts or practices.
DATES: Comments must be received on
or before September 29, 2023.
ADDRESSES: Interested parties may file a
comment online or on paper by
following the instructions in the
Comment Submissions part of the
SUPPLEMENTARY INFORMATION section
below. Write ‘‘Reviews and
Testimonials NPRM, R311003’’ on your
comment and file your comment online
at https://www.regulations.gov. If you
prefer to file your comment on paper,
mail your comment to the following
address: Federal Trade Commission,
Office of the Secretary, 600
Pennsylvania Avenue NW, Suite CC–
5610 (Annex F), Washington, DC 20580.
FOR FURTHER INFORMATION CONTACT:
Michael Ostheimer, Attorney, Federal
Trade Commission, Bureau of Consumer
Protection, Advertising Practices
Division, (202) 326–2699, mostheimer@
ftc.gov.
SUPPLEMENTARY INFORMATION: The
Commission invites interested parties to
submit data, views, and arguments on
the proposed Rule on the Use of
Consumer Reviews and Testimonials
(‘‘proposed Rule’’) and, specifically, on
the questions set forth in Section X of
this notice of proposed rulemaking
(‘‘NPRM’’). The comment period will
remain open until September 29, 2023.1
To the extent practicable, all comments
will be available on the public record
and posted at the docket for this
rulemaking on https://
www.regulations.gov. If interested
parties request to present their position
orally, the Commission will hold an
informal hearing, as specified in Section
18(c) of the FTC Act, 15 U.S.C. 57a(c).
Persons interested in making a
presentation at an informal hearing
must file a comment expressly
requesting a hearing in response to this
publication, containing a statement
identifying their interests in the
proceeding and any proposals to add
1 The Commission elects not to provide a
separate, second comment period for rebuttal
comments. See 16 CFR 1.11(e) (‘‘The Commission
may in its discretion provide for a separate rebuttal
period following the comment period.’’).
PO 00000
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Fmt 4702
Sfmt 4702
disputed issues of material fact
necessary to be resolved during an
informal hearing. The comment should
describe why the person thinks the
informal hearing is warranted and how
they would participate, and include a
summary of their expected testimony.
Interested persons’ comments may also,
without requesting an informal hearing,
expressly request to speak at any
informal hearing that is held, which
may happen if another commenter
requests an informal hearing or if the
Commission on its own elects to hold
one. If an informal hearing is held, the
Commission will publish a separate
notice in accordance with 16 CFR
1.12(a) (‘‘initial notice of informal
hearing’’).
I. Background
The Commission published, on
November 8, 2022, an advance notice of
proposed rulemaking (‘‘ANPR’’) under
the authority of Section 18(a)(1)(B) of
the FTC Act, 15 U.S.C. 57a(a)(1)(B); 2
which authorizes the Commission to
promulgate, modify, or repeal trade
regulation rules that define with
specificity acts or practices that are
unfair or deceptive in or affecting
commerce within the meaning of
Section 5(a)(1) of the FTC Act, 15 U.S.C.
45(a)(1).
The ANPR described the
Commission’s history of educating
industry and consumers about the use of
deceptive reviews and testimonials and
of taking law enforcement action against
certain unfair or deceptive acts or
practices involving consumer reviews or
testimonials.3 Specifically, the ANPR
discussed: (a) the use of reviews or
endorsements by people who do not
exist, who did not actually use or test
the product or service, or who were
misrepresenting their experience with
it; (b) review hijacking, where a seller
steals or repurposes reviews of another
product; (c) marketers offering
compensation or other incentives in
exchange for, or conditioned on, the
writing of positive or negative consumer
reviews; (d) owners, officers, or
managers of a company (i) writing
reviews or testimonials of their own
products or services, or publishing
testimonials by their employees or
2 Fed. Trade Comm’n, ANPR: Trade Regulation
Rule on the Use of Reviews and Endorsements
(‘‘ANPR’’), 87 FR 67424 (Nov. 8, 2022), https://
www.federalregister.gov/documents/2022/11/08/
2022-24139/trade-regulation-rule-on-the-use-ofreviews-and-endorsements.
3 The ANPR was entitled ‘‘Trade Regulation Rule
Concerning Reviews and Endorsements.’’ The
Commission has decided to change the name of the
proposed rule to ‘‘Trade Regulation Rule on the Use
of Consumer Reviews and Testimonials,’’ to better
reflect its content.
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]]>Agencies
[Federal Register Volume 88, Number 145 (Monday, July 31, 2023)]
[Proposed Rules]
[Pages 49361-49364]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-15910]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1637; Project Identifier MCAI-2023-00184-E]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A2,
Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent
1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2,
and Trent 1000-L2 engines. This proposed AD was prompted by reports of
cracking and separation of certain low-pressure turbine (LPT) stage 1
blade assemblies. This proposed AD would require initial and repetitive
inspections of affected LPT stage 1 blade assemblies for cracking or
separation and, depending on the results of the inspections, reduction
of the inspection interval or replacement of the LPT stage 1 blade set
and disk, as specified in a European Union Aviation Safety Agency
(EASA) AD, which is proposed for incorporation by reference (IBR). The
FAA is proposing this AD to address the unsafe condition on these
products.
DATES: The FAA must receive comments on this NPRM by September 14,
2023.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to regulations.gov. Follow
the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2023-1637; 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 NPRM, the mandatory
[[Page 49362]]
continuing airworthiness information (MCAI), any comments received, and
other information. The street address for Docket Operations is listed
above.
Material Incorporated by Reference:
For EASA service information material identified in this
NPRM, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
phone: +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.
You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 1200
District Avenue, Burlington, MA 01803. For information on the
availability of this material at the FAA, call (817) 222-5110.
FOR FURTHER INFORMATION CONTACT: Sungmo Cho, Aviation Safety Engineer,
FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238-
7241; email: [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2023-1637; Project Identifier
MCAI-2023-00184-E'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Sungmo Cho, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des
Moines, WA 98198. Any commentary that the FAA receives which is not
specifically designated as CBI will be placed in the public docket for
this rulemaking.
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2023-0027, dated January 31, 2023
(EASA AD 2023-0027) (referred to after this as the MCAI), to address an
unsafe condition for all RRD Model Trent 1000-A2, Trent 1000-AE2, Trent
1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2,
Trent 1000-H2, Trent 1000-J2, Trent 1000-K2 and Trent 1000-L2 engines.
The MCAI states that manufacturer inspections detected cracking and
separation of blade pairs in the weld region of certain LPT stage 1
blade assemblies. A blade assembly consists of a pair of blades welded
together at the outer shroud. There are 85 LPT stage 1 blade assemblies
in one set. Such cracking and separation could cause failure of
affected parts and damage to the LPT module.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2023-1637.
Related Service Information Under 1 CFR Part 51
The FAA reviewed EASA AD 2023-0027, which specifies procedures for
inspection of affected LPT stage 1 blade assemblies and replacement of
the LPT stage 1 blade set and disk. EASA AD 2023-0027 also specifies a
reduction of the repetitive inspection intervals if cracking or
separation is detected and meets certain criteria. 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
ADDRESSES.
FAA's Determination
These products have been approved by the aviation authority of
another country and are 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 described above. The FAA is issuing this NPRM after
determining that the unsafe condition described previously is likely to
exist or develop on other products of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in the MCAI described previously, except for any differences identified
as exceptions in the regulatory text of this proposed.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use some civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has since
coordinated with other manufacturers and CAAs to use this process. As a
result, the FAA proposes to incorporate by reference EASA AD 2023-0027
in the FAA final rule. This proposed AD would, therefore, require
compliance with EASA AD 2023-0027 in its entirety through that
incorporation, except for any differences identified as exceptions in
the regulatory text of this proposed AD. Using common terms that are
the same as the heading of a particular section in the EASA AD does not
mean that operators need comply only with that section. For example,
where the AD requirement refers to ``all required actions within the
compliance times,'' compliance with this AD requirement is not limited
to the section titled ``Required Action(s) and Compliance Time(s)'' in
EASA AD 2023-0027. Service information required by the EASA AD for
compliance will be available at regulations.gov by searching for and
locating Docket No. FAA-2023-1637 after the FAA final rule is
published.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 26 engines installed on airplanes of U.S. Registry.
The FAA estimates the following costs to comply with this proposed
AD:
[[Page 49363]]
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Inspect LPT stage 1 blade assemblies 4 work-hours x $85 per $0 $340 $8,840
hour = $340.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
proposed inspection. The agency has no way of determining the number of
aircraft that might need these replacements:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Replace LPT stage 1 blade set and disk....... 4 work-hours x $85 per hour = $720,000 $720,340
$340.
----------------------------------------------------------------------------------------------------------------
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
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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 Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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:
Rolls-Royce Deutschland Ltd. & Co. KG: Docket No. FAA-2023-1637;
Project Identifier MCAI-2023-00184-E.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 14, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD)
Model Trent 1000-A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2,
Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent
1000-J2, Trent 1000-K2, and Trent 1000-L2 engines.
(d) Subject
Joint Aircraft Service Component (JASC) Code 7250, Turbine
Section.
(e) Unsafe Condition
This AD was prompted by reports of cracking and separation of
certain low-pressure turbine (LPT) stage 1 blade assemblies. The FAA
is issuing this AD to prevent failure of the LPT stage 1 blades. The
unsafe condition, if not addressed, could result in high energy
debris release, damage to the airplane, and reduced control of the
airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified in paragraphs (h) and (i) of this AD:
Perform all required actions within the compliance times specified
in, and in accordance with, European Union Aviation Safety Agency AD
2023-0027, dated January 31, 2023 (EASA AD 2023-0027).
(h) Exceptions to EASA AD 2023-0027
(1) Where EASA AD 2023-0027 specifies compliance from its
effective date, this AD requires using the effective date of this
AD.
(2) This AD does not adopt the Remarks paragraph of EASA AD
2023-0027.
(3) Where the service information referenced in EASA AD 2023-
0027 specifies discarding the removed LP turbine stage 1 blade set,
this AD requires removing the affected part from service.
(4) Where the service information referenced in EASA AD 2023-
0027 specifies to quarantine the removed LP turbine stage 1 rotor
disc, this AD requires removing the affected part from service.
(i) No Reporting Requirement
Although the service information referenced in EASA AD 2023-0027
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(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 local
Flight Standards District Office, as appropriate. If sending
information directly to the manager of the branch office, send it to
the attention of the person identified in
[[Page 49364]]
paragraph (k) of this AD and email to: [email protected].
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(k) Additional Information
For more information about this AD, contact Sungmo Cho, Aviation
Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198;
phone: (781) 238-7241; email: [email protected].
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(i) European Union Aviation Safety Agency AD 2023-0027, dated
January 31, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0027, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; phone: +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 service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 1200
District Avenue, Burlington, MA 01803. For information on the
availability of this material at the FAA, call (817) 222-5110.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on July 21, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-15910 Filed 7-28-23; 8:45 am]
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