Proposed Rule2023-21090
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
September 27, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is correcting a Notice of Proposed Rulemaking (NPRM) that published in the Federal Register. The NPRM proposed to issue an airworthiness directive (AD) that would apply to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000 engines. As published, the docket number referenced throughout the NPRM is incorrect. This document corrects that error. In all other respects, the original document remains the same; however, for clarity, the FAA is publishing the entire proposed rule in the Federal Register.
Full Text
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<title>Federal Register, Volume 88 Issue 186 (Wednesday, September 27, 2023)</title>
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[Federal Register Volume 88, Number 186 (Wednesday, September 27, 2023)]
[Proposed Rules]
[Pages 66316-66319]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-21090]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1889; Project Identifier MCAI-2023-00738-E]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Proposed rule; correction.
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SUMMARY: The FAA is correcting a Notice of Proposed Rulemaking (NPRM)
that published in the Federal Register. The NPRM proposed to issue an
airworthiness directive (AD) that would apply to certain Rolls-Royce
Deutschland Ltd & Co KG (RRD) Model Trent 1000 engines. As published,
the docket number referenced throughout the NPRM is incorrect. This
document corrects that error. In all other respects, the original
document remains the same; however, for clarity, the FAA is publishing
the entire proposed rule in the Federal Register.
DATES: The last date for submitting comments to the NPRM (88 FR 63885,
September 18, 2023) remains November 2, 2023.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
[[Page 66317]]
<bullet> Federal eRulemaking Portal: Go to <a href="http://regulations.gov">regulations.gov</a>. Follow
the instructions for submitting comments.
<bullet> Fax: (202) 493-2251.
<bullet> 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.
<bullet> 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 <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1889; 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 continuing airworthiness
information (MCAI), any comments received, and other information. The
street address for Docket Operations is listed above.
Material Incorporated by Reference:
<bullet> For service information that is identified in this NPRM,
contact the European Union Aviation Safety Agency (EASA), Konrad-
Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000;
email: <a href="/cdn-cgi/l/email-protection#78393c0b381d190b19561d0d0a170819561d0d"><span class="__cf_email__" data-cfemail="96d7d2e5d6f3f7e5f7b8f3e3e4f9e6f7b8f3e3">[email protected]</span></a>; website: easa.europa.eu. You may find this
material on the EASA website at ad.easa.europa.eu. It is also available
at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1889.
<bullet> 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: <a href="/cdn-cgi/l/email-protection#94e7e1faf3f9fbbaf0baf7fcfbd4f2f5f5baf3fbe2"><span class="__cf_email__" data-cfemail="7c0f09121b11135218521f14133c1a1d1d521b130a">[email protected]</span></a>.
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-2023-1889; Project Identifier
MCAI-2023-00738-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
<a href="http://regulations.gov">regulations.gov</a>, 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
The FAA issued an NPRM (88 FR 63885, September 18, 2023) that would
apply to certain RRD Model Trent 1000 engines. The NPRM proposed to
supersede AD 2021-25-04, Amendment 39-21847 (86 FR 71129, December 15,
2021) (AD 2021-25-04), for all RRD Model Trent 1000-AE3, Trent 1000-
CE3, Trent 1000-D3, Trent 1000-G3, Trent 1000-H3, Trent 1000-J3, Trent
1000-K3, Trent 1000-L3, Trent 1000-M3, Trent 1000-N3, Trent 1000-P3,
Trent 1000-Q3, and Trent 1000-R3 (Trent 1000) engines. AD 2021-25-04
requires operators to revise the airworthiness limitations section
(ALS) of their existing approved aircraft maintenance program by
incorporating the revised tasks of the applicable time limits manual
(TLM) for each affected engine.
The NPRM proposed to require revising the ALS of the operator's
existing approved engine maintenance or inspection program, as
applicable, to incorporate new or more restrictive tasks and
limitations and associated thresholds and intervals for life-limited
parts, as specified in EASA AD 2023-0115, dated June 7, 2023 (EASA AD
2023-0115) (also referred to after this as the MCAI), which is proposed
for incorporation by reference. The NPRM was prompted by the
manufacturer revising the TLM to introduce new or more restrictive
tasks and limitations and associated thresholds and intervals for life-
limited parts. The FAA is proposing this AD to prevent the failure of
critical rotating parts, which could result in the failure of one or
more engines, loss of thrust control, and loss of the airplane.
Need for the Correction
As published, the docket number referenced throughout the NPRM is
incorrect. The NPRM incorrectly references ``Docket No. FAA-2023-1881''
instead of ``Docket No. FAA-2023-1889.''
Although no other part of the preamble or regulatory information
has been corrected, for clarity, the FAA is publishing the entire
proposed rule in the Federal Register.
The comment due date of the NPRM remains November 2, 2023.
Related Service Information Under 1 CFR Part 51
The FAA reviewed EASA AD 2023-0115, which specifies procedures for
operators to revise the ALS of the existing approved engine maintenance
or inspection program, as applicable, to incorporate new or more
restrictive tasks and limitations and associated thresholds and
intervals for life-limited parts.
This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in 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 referenced 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 revising the ALS of the operator's
existing approved engine maintenance or inspection program, as
applicable, to incorporate new or more restrictive
[[Page 66318]]
tasks and limitations and associated thresholds and intervals for life-
limited parts, which are specified in the MCAI described previously,
except for any differences identified as exceptions in the regulatory
text of this proposed AD and as discussed under ``Differences Between
this Proposed AD and the MCAI.''
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 2023-0115
in the FAA final rule. This proposed AD would, therefore, require
compliance with EASA AD 2023-0115 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
compliance times,'' compliance with this AD requirement is not limited
to the section titled ``Required Action(s) and Compliance Time(s)'' in
EASA AD 2023-0115. Service information required by the EASA AD for
compliance will be available at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-
2023-1889 after the FAA final rule is published.
Differences Between This Proposed AD and the MCAI
Where paragraph (3) of EASA AD 2023-0115 specifies revising the
approved Aircraft Maintenance Programme within 12 months after the
effective date of EASA AD 2023-0115, this proposed AD would require
revising the ALS of the existing approved engine maintenance or
inspection program, as applicable, within 90 days after the effective
date of this AD.
This proposed AD would not require compliance with paragraphs (1),
(2), (4), and (5) of EASA AD 2023-0115.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 2 engines installed on airplanes of U.S. registry.
The FAA estimates the following costs to comply with this proposed
AD:
Estimated Costs
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Cost per Cost on U.S.
Action Labor Cost Parts Cost product operators
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Revise the ALS.................... 1 work-hour x $85 per $0 $85 $170
hour = $85.
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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 that the 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 [Corrected]
0
2. The FAA amends Sec. 39.13 by:
0
a. Removing Airworthiness Directive AD 2021-25-04, Amendment 39-21847
(86 FR 71129, December 15, 2021); and
0
b. Adding the following new airworthiness directive:
Rolls-Royce Deutschland Ltd & Co KG: Docket No. FAA-2023-1889;
Project Identifier MCAI-2023-00738-E.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by November 2, 2023.
(b) Affected ADs
This AD replaces AD 2021-25-04, Amendment 39-21847 (86 FR 71129,
December 15, 2021).
(c) Applicability
This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model
Trent 1000-AE3, Trent 1000-CE3, Trent 1000-D3, Trent 1000-G3, Trent
1000-H3, Trent 1000-J3, Trent 1000-K3, Trent 1000-L3, Trent 1000-M3,
Trent 1000-N3, Trent 1000-P3, Trent 1000-Q3, and Trent 1000-R3
engines.
(d) Subject
Joint Aircraft System Component (JASC) Code 7200, Engine
(Turbine/Turboprop).
(e) Unsafe Condition
This AD was prompted by the manufacturer revising the engine
time limits manual (TLM) life limits of certain critical rotating
parts and direct accumulation counting data files. The FAA is
issuing this AD to prevent the failure of critical rotating
[[Page 66319]]
parts. The unsafe condition, if not addressed, could result in
failure of one or more engines, loss of thrust control, and loss of
the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified in paragraph (h) of this AD: Perform all
required actions within the compliance times specified in, and in
accordance with, European Union Aviation Safety Agency (EASA) AD
2023-0115, dated June 7, 2023 (EASA AD 2023-0115).
(h) Exceptions to EASA AD 2023-0115
(1) Where EASA AD 2023-0115 defines the AMP as the approved
Aircraft Maintenance Programme containing the tasks on the basis of
which the scheduled maintenance is conducted to ensure the
continuing airworthiness of each operated engine, this AD defines
the AMP as the aircraft maintenance program containing the tasks on
the basis of which the scheduled maintenance is conducted to ensure
the continuing airworthiness of each operated airplane.
(2) Where EASA AD 2023-0115 refers to its effective date, this
AD requires using the effective date of this AD.
(3) This AD does not require compliance with paragraphs (1),
(2), (4), and (5) of EASA AD 2023-0115.
(4) Where paragraph (3) of EASA AD 2023-0115 specifies revising
the approved AMP within 12 months after the effective date of EASA
AD 2023-0115, this AD requires revising the airworthiness
limitations section of the existing approved engine maintenance or
inspection program, as applicable, within 90 days after the
effective date of this AD.
(5) This AD does not adopt the Remarks paragraph of EASA AD
2023-0115.
(i) Provisions for Alternative Actions and Intervals
After performing the actions required by paragraph (g) of this
AD, no alternative actions and associated thresholds and intervals,
including life limits, are allowed unless they are approved as
specified in the provisions of the ``Ref. Publications'' section of
EASA AD 2023-0115.
(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, send it to the
attention of the person identified in paragraph (k) of this AD and
email to: <a href="/cdn-cgi/l/email-protection#c7868982ea8683ea868a888487a1a6a6e9a0a8b1"><span class="__cf_email__" data-cfemail="45040b006804016804080a06052324246b222a33">[email protected]</span></a>.
(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: <a href="/cdn-cgi/l/email-protection#fd8e88939a9092d399d39e9592bd9b9c9cd39a928b"><span class="__cf_email__" data-cfemail="5122243f363c3e7f357f32393e113730307f363e27">[email protected]</span></a>.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) European Union Aviation Safety Agency (EASA) AD 2023-0115,
dated June 7, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0115, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; phone: +49 221 8999 000; email:
<a href="/cdn-cgi/l/email-protection#a3e2e7d0e3c6c2d0c28dc6d6d1ccd3c28dc6d6"><span class="__cf_email__" data-cfemail="b7f6f3c4f7d2d6c4d699d2c2c5d8c7d699d2c2">[email protected]</span></a>; 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 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: <a href="/cdn-cgi/l/email-protection#91f7e3bff8ffe2e1f4f2e5f8feffd1fff0e3f0bff6fee7"><span class="__cf_email__" data-cfemail="0264702c6b6c71726761766b6d6c426c6370632c656d74">[email protected]</span></a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on September 22, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-21090 Filed 9-25-23; 4:15 pm]
BILLING CODE 4910-13-P
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