Rule2024-09555
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
Primary source
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Published
May 6, 2024
Effective
June 10, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A, Trent 1000-A2, Trent 1000-AE, Trent 1000-AE2, Trent 1000-C, Trent 1000-C2, Trent 1000-CE, Trent 1000-CE2, Trent 1000-D, Trent 1000-D2, Trent 1000- E, Trent 1000-E2, Trent 1000-G, Trent 1000-G2, Trent 1000-H, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 engines. This AD was prompted by reports of wear in the combining spill valve (CSV) assembly of certain hydro-mechanical units (HMUs). This AD requires removing certain HMUs from service and replacing with a serviceable part. This AD also prohibits the installation of certain HMUs unless the HMU is a serviceable part or the CSV assembly has been replaced, 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 88 (Monday, May 6, 2024)</title>
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[Federal Register Volume 89, Number 88 (Monday, May 6, 2024)]
[Rules and Regulations]
[Pages 37109-37111]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-09555]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-0036; Project Identifier MCAI-2023-00731-E;
Amendment 39-22739; AD 2024-08-06]
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 adopting a new airworthiness directive (AD) for all
Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A, Trent
1000-A2, Trent 1000-AE, Trent 1000-AE2, Trent 1000-C, Trent 1000-C2,
Trent 1000-CE, Trent 1000-CE2, Trent 1000-D, Trent 1000-D2, Trent 1000-
E, Trent 1000-E2, Trent 1000-G, Trent 1000-G2, Trent 1000-H, Trent
1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 engines. This
AD was prompted by reports of wear in the combining spill valve (CSV)
assembly of certain hydro-mechanical units (HMUs). This AD requires
removing certain HMUs from service and replacing with a serviceable
part. This AD also prohibits the installation of certain HMUs unless
the HMU is a serviceable part or the CSV assembly has been replaced, 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 June 10, 2024.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of June 10,
2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-0036; 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.
[[Page 37110]]
Material Incorporated by Reference:
<bullet> For EASA service information, contact EASA, Konrad-
Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000;
email: <a href="/cdn-cgi/l/email-protection#befffacdfedbdfcddf90dbcbccd1cedf90dbcb"><span class="__cf_email__" data-cfemail="1455506754717567753a7161667b64753a7161">[email protected]</span></a>. You may find this material on the EASA
website at ad.easa.europa.eu.
<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. It is
also available at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2024-0036.
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#1a696f747d7775347e347972755a7c7b7b347d756c"><span class="__cf_email__" data-cfemail="d8abadb6bfb5b7f6bcf6bbb0b798beb9b9f6bfb7ae">[email protected]</span></a>.
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 RRD Model Trent
1000-A, Trent 1000-A2, Trent 1000-AE, Trent 1000-AE2, Trent 1000-C,
Trent 1000-C2, Trent 1000-CE, Trent 1000-CE2, Trent 1000-D, Trent 1000-
D2, Trent 1000-E, Trent 1000-E2, Trent 1000-G, Trent 1000-G2, Trent
1000-H, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2
engines. The NPRM published in the Federal Register on January 24, 2024
(89 FR 4582). The NPRM was prompted by EASA AD 2023-0113, dated June 1,
2023 (EASA AD 2023-0113) (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 occurrences have been reported of
finding wear in the CSV assembly of certain HMUs. This wear can reduce
the fuel flow output when the engine is operated at high power
conditions and lead to thrust reduction. To address this unsafe
condition, the manufacturer published service information that
specifies procedures to remove certain HMUs from service and replace
with a serviceable part. The MCAI also specifies an implementation
schedule, based on engine flight-hour (EFH) limits, for replacement of
each affected part with a serviceable part and prohibits installation
or reinstallation of affected HMUs that have exceeded the allowable EFH
limit unless the HMU is a serviceable part or the CSV assembly has been
replaced.
In the NPRM, the FAA proposed to require removing certain HMUs from
service and replacing with a serviceable part. The NPRM also proposed
to prohibit installation of certain HMUs unless the HMU is a
serviceable part or the CSV assembly has been replaced. The FAA is
issuing this AD to address the unsafe condition on these products.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-0036.
Discussion of Final Airworthiness Directive
Comments
The FAA received one comment from Boeing which 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.
Related Service Information Under 1 CFR Part 51
The FAA reviewed EASA AD 2023-0113, which specifies procedures for
removing certain part-numbered HMUs from service and replacing with a
serviceable part. The MCAI also specifies prohibiting installation or
reinstallation of an affected HMU on any engine unless the HMU is a
serviceable part.
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.
Costs of Compliance
The FAA estimates that this AD affects 28 engines installed on
airplanes, of U.S. registry.
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Replace the HMU..................... 7 work-hours x $85 per $552,000 $552,595 $15,472,660
hour = $595.
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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
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.
[[Page 37111]]
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:
2024-08-06 Rolls-Royce Deutschland Ltd & Co KG: Amendment 39-22739;
Docket No. FAA-2024-0036; Project Identifier MCAI-2023-00731-E.
(a) Effective Date
This airworthiness directive (AD) is effective June 10, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Rolls-Royce Deutschland Ltd & Co KG Model
Trent 1000-A, Trent 1000-A2, Trent 1000-AE, Trent 1000-AE2, Trent
1000-C, Trent 1000-C2, Trent 1000-CE, Trent 1000-CE2, Trent 1000-D,
Trent 1000-D2, Trent 1000-E, Trent 1000-E2, Trent 1000-G, Trent
1000-G2, Trent 1000-H, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2,
and Trent 1000-L2 engines.
(d) Subject
Joint Aircraft System Component (JASC) Code 7300, Engine Fuel
and Control.
(e) Unsafe Condition
This AD was prompted by reports of wear in the combining spill
valve (CSV) assembly of certain hydro-mechanical units (HMUs). The
FAA is issuing this AD to prevent thrust reduction. The unsafe
condition, if not addressed, could result in 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 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
2023-0113, dated June 1, 2023 (EASA AD 2023-0113).
(h) Exceptions to EASA AD 2023-0113
(1) Where EASA AD 2023-0113 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where Table 1 of EASA AD 2023-0113 specifies ``15 June
2023'', replace that text with ``As of the effective date of this
AD.''
(3) Where Table 1 of EASA AD 2023-0113 specifies ``01 January
2025'', replace that text with ``Within 4 months after the effective
date of this AD or January 1, 2025, whichever occurs later.''
(4) Where the service information referenced in EASA AD 2023-
0013 specifies to discard certain parts, this AD requires those
parts to be removed from service.
(5) This AD does not adopt the Remarks paragraph of EASA AD
2023-0113.
(i) Definitions
For the purposes of this AD, the ``implementation date'' is
defined as the date that the applicable engine flight hour limit
takes effect.
(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 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#dd9c9398f09c99f09c90929e9dbbbcbcf3bab2ab"><span class="__cf_email__" data-cfemail="84c5cac1a9c5c0a9c5c9cbc7c4e2e5e5aae3ebf2">[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#394a4c575e5456175d175a5156795f5858175e564f"><span class="__cf_email__" data-cfemail="3a494f545d5755145e145952557a5c5b5b145d554c">[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 2023-0113,
dated June 1, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0113, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; phone: +49 221 8999 000; email:
<a href="/cdn-cgi/l/email-protection#4100053201242032206f2434332e31206f2434"><span class="__cf_email__" data-cfemail="3574714675505446541b5040475a45541b5040">[email protected]</span></a>; website: easa.europa.eu. You may find this
material 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 material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="/cdn-cgi/l/email-protection#3b075a1b53495e5d06" http: www.archives.gov federal-register cfr ibr-locationsoremailfr.inspection@nara.gov">www.archives.gov/federal-register/cfr/<span class="__cf_email__" data-cfemail="adc4cfdf80c1c2ceccd9c4c2c3dec2dfc8c0ccc4c1cbdf83c4c3deddc8ced9c4c2c3edc3ccdfcc83cac2db">[email protected]</span></a>"><a href="http://www.archives.gov/federal-register/cfr/ibr-locationsoremailfr.inspection@nara.gov">www.archives.gov/federal-register/cfr/<span class="__cf_email__" data-cfemail="aac3c8d887c6c5c9cbdec3c5c4d9c5d8cfc7cbc3c6ccd884c3c4d9dacfc9dec3c5c4eac4cbd8cb84cdc5dc">[email protected]</span></a></a>.
Issued on April 17, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2024-09555 Filed 5-3-24; 8:45 am]
BILLING CODE 4910-13-P
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