Rule2024-28088
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
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
December 2, 2024
Effective
January 6, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2023-24- 06, which applies to certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000 engines. AD 2023-24-06 required revising the airworthiness limitation section (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. This AD was prompted by the manufacturer revising the time limits manual (TLM) to introduce new or more restrictive tasks and limitations and associated thresholds and intervals for life-limited parts. This AD requires revisions to the ALS of the operator's existing approved engine maintenance or inspection program, 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.
Full Text
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<title>Federal Register, Volume 89 Issue 231 (Monday, December 2, 2024)</title>
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[Federal Register Volume 89, Number 231 (Monday, December 2, 2024)]
[Rules and Regulations]
[Pages 95090-95092]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-28088]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1899; Project Identifier MCAI-2023-01169-E;
Amendment 39-22870; AD 2024-21-03]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2023-24-
06, which applies to certain Rolls-Royce Deutschland Ltd & Co KG (RRD)
Model Trent 1000 engines. AD 2023-24-06 required revising the
airworthiness limitation section (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. This AD was
prompted by the manufacturer revising the time limits manual (TLM) to
introduce new or more restrictive tasks and limitations and associated
thresholds and intervals for life-limited parts. This AD requires
revisions to the ALS of the operator's existing approved engine
maintenance or inspection program, 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 January 6, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 6,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1899; 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:
<bullet> For EASA material identified in this AD, contact EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999
000; email: <a href="/cdn-cgi/l/email-protection#ecada89fac898d9f8dc289999e839c8dc28999"><span class="__cf_email__" data-cfemail="d79693a497b2b6a4b6f9b2a2a5b8a7b6f9b2a2">[email protected]</span></a>. You may find this material on the EASA
website at ad.easa.europa.eu.
<bullet> You may view this material 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. It is also available at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2024-1899.
FOR FURTHER INFORMATION CONTACT: Barbara Caufield, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone:
(781) 238-7146; email: <a href="/cdn-cgi/l/email-protection#a7c5c6d5c5c6d5c689c4c6d2c1cec2cbc3e7c1c6c689c0c8d1"><span class="__cf_email__" data-cfemail="92f0f3e0f0f3e0f3bcf1f3e7f4fbf7fef6d2f4f3f3bcf5fde4">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2023-24-06, Amendment 39-22623 (88 FR
89290, December 27, 2023) (AD 2023-24-06) for certain 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 engines. AD 2023-
24-06 required 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. The FAA issued AD 2023-24-06 to
prevent the failure of critical rotating parts.
The NPRM published in the Federal Register on July 29, 2024 (89 FR
60841). The NPRM was prompted by EASA AD
[[Page 95091]]
2023-0195, dated November 9, 2023 (EASA AD 2023-0195) (also referred to
as the MCAI), issued by EASA, which is the Technical Agent for the
Member States of the European Union. The MCAI states that the
manufacturer published a revised engine TLM introducing new or more
restrictive tasks and limitations. These new or more restrictive tasks
and limitations include updating declared lives of certain critical
parts.
In the NPRM, the FAA proposed to retain none of the requirements of
AD 2023-24-06. The NPRM proposed to require revising the ALS of the
operator's existing approved engine maintenance or inspection program,
as specified in EASA AD 2023-0195. The FAA is issuing this AD to
prevent the failure of rotating parts, which, if not addressed, could
result in failure of one or more engines, loss of thrust control, and
loss of the airplane.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1899.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from The Boeing Company who supported
the NPRM without change.
Conclusion
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 reviewed the relevant data,
considered the comment received, and determined that air safety
requires adopting the AD as proposed. Accordingly, the FAA is issuing
this AD to address the unsafe condition on these products. Except for
minor editorial changes, this AD is adopted as proposed in the NPRM.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed EASA AD 2023-0195, which specifies instructions
for accomplishing the actions specified in the applicable TLM,
including performing maintenance tasks, replacing life-limited parts,
and revising the existing approved maintenance or inspection program,
as applicable, by incorporating the limitations, tasks, and associated
thresholds and intervals described in the TLM.
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.
Differences Between This AD and the MCAI
Where EASA AD 2023-0195 specifies revising the approved aircraft
maintenance programme (AMP) within 12 months after the effective date
of EASA AD 2023-0195, this AD requires revising the ALS of the existing
approved aircraft maintenance or inspection program, as applicable,
within 30 days after the effective date of this AD.
Costs of Compliance
The FAA estimates that this AD affects 2 engines installed on
airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Revise the ALS...................... 1 work-hours 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 has determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by:
0
a. Removing Airworthiness Directive 2023-24-06, Amendment 39-22623 (88
FR 89290, December 27, 2023); and
0
b. Adding the following new airworthiness directive:
2024-21-03 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-22870;
Docket No. FAA-2024-1899; Project Identifier MCAI-2023-01169-E.
(a) Effective Date
This airworthiness directive (AD) is effective January 6, 2025.
[[Page 95092]]
(b) Affected ADs
This AD replaces AD 2023-24-06, Amendment 39-22623 (88 FR 89290,
December 27, 2023).
(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) required maintenance and inspections. The
FAA is issuing this AD to prevent the failure of rotating 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 AD 2023-0195,
dated November 9, 2023 (EASA AD 2023-0195).
(h) Exceptions to EASA AD 2023-0195
(1) Where EASA AD 2023-0195 refers to its effective date, this
AD requires using the effective date of this AD.
(2) This AD does not require compliance with paragraph (1), (2),
(4), and (5) of EASA AD 2023-0195.
(3) Where paragraph (3) of EASA AD 2023-0195 specifies ``Within
12 months after the effective date of this AD, revise the approved
AMP,'' replace that text with ``Within 30 days after the effective
date of this AD, revise the airworthiness limitation section (ALS)
of the existing approved engine maintenance or inspection program,
as applicable.''
(4) This AD does not adopt the ``Remarks'' paragraph of EASA AD
2023-0195.
(i) Provisions for Alternative Actions and Intervals
No alternative actions and associated thresholds and intervals,
including life limits, are allowed for compliance with paragraph (g)
of this AD unless they are approved as specified in the provisions
of the ``Ref. Publications'' section of EASA AD 2023-0195.
(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, AIR-520 Continued Operational
Safety 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#4405090b07042225256a232b32"><span class="__cf_email__" data-cfemail="0c4d41434f4c6a6d6d226b637a">[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 Barbara Caufield,
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines,
WA 98198; phone: (781) 238-7146; email: <a href="/cdn-cgi/l/email-protection#dfbdbeadbdbeadbef1bcbeaab9b6bab3bb9fb9bebef1b8b0a9"><span class="__cf_email__" data-cfemail="5a383b28383b283b74393b2f3c333f363e1a3c3b3b743d352c">[email protected]</span></a>.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the material listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless the AD specifies otherwise.
(i) European Union Aviation Safety Agency (EASA) AD 2023-0195,
dated November 9, 2023.
(ii) [Reserved]
(3) For EASA material identified in this AD, contact EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999
000; email: <a href="/cdn-cgi/l/email-protection#0243467142676371632c6777706d72632c6777"><span class="__cf_email__" data-cfemail="ffbebb8cbf9a9e8c9ed19a8a8d908f9ed19a8a">[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 material 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 material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#85e3f7abecebf6f5e0e6f1eceaebc5ebe4f7e4abe2eaf3"><span class="__cf_email__" data-cfemail="86e0f4a8efe8f5f6e3e5f2efe9e8c6e8e7f4e7a8e1e9f0">[email protected]</span></a>.
Issued on October 15, 2024.
Peter A. White,
Deputy Director, Integrated Certificate Management Division, Aircraft
Certification Service.
[FR Doc. 2024-28088 Filed 11-29-24; 8:45 am]
BILLING CODE 4910-13-P
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