Rule2021-25005
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
Primary source
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Published
November 17, 2021
Effective
December 2, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd. & Co KG (RRD) Trent 1000 model turbofan engines. 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. This AD requires the operator to revise the airworthiness limitation section (ALS) of their existing approved aircraft maintenance program (AMP) by incorporating the revised tasks of the applicable TLM for each affected model turbofan engine, 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 86 Issue 219 (Wednesday, November 17, 2021)</title>
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[Federal Register Volume 86, Number 219 (Wednesday, November 17, 2021)]
[Rules and Regulations]
[Pages 64066-64068]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-25005]
[[Page 64066]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0879; Project Identifier MCAI-2020-01494-E;
Amendment 39-21773; AD 2021-21-13]
RIN 2120-AA64
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG
(Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Rolls-Royce Deutschland Ltd. & Co KG (RRD) Trent 1000 model
turbofan engines. 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. This AD
requires the operator to revise the airworthiness limitation section
(ALS) of their existing approved aircraft maintenance program (AMP) by
incorporating the revised tasks of the applicable TLM for each affected
model turbofan engine, 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 December 2, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 2,
2021.
The FAA must receive comments on this AD by January 3, 2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="https://www.regulations.gov">https://www.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.
For material incorporated by reference 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#37767344775256445619524245584756195242"><span class="__cf_email__" data-cfemail="bffefbccffdadeccde91dacacdd0cfde91daca">[email protected]</span></a>. You may find this material on the EASA
website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. 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 (781) 238-7759. It is
also available in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0879.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0879; 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 AD, the EASA AD,
any comments received, and other information. The street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
phone: (781) 238-7088; email: <a href="/cdn-cgi/l/email-protection#325957445b5c1c5f1c515e534059725453531c555d44"><span class="__cf_email__" data-cfemail="c5aea0b3acabeba8eba6a9a4b7ae85a3a4a4eba2aab3">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2020-0242, dated November 5, 2020
(EASA AD 2020-0242) (also referred to as the Mandatory Continuing
Airworthiness Information, or the MCAI), to correct an unsafe condition
for certain RRD Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-
CE, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H model
turbofan engines.
This AD was prompted by the manufacturer revising the engine TLM
life limits of certain critical rotating parts and updating certain
maintenance tasks. The FAA is issuing this AD to address the failure of
critical rotating parts.
FAA's Determination
These engines 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 the State of Design
Authority, the FAA has been notified about the unsafe condition
described in the EASA AD referenced in this proposed AD. The FAA is
issuing this AD because the agency evaluated all the relevant
information provided by EASA and determined the unsafe condition
described previously is likely to exist or develop in other products of
the same type design.
Related Service Information Under 1 CFR Part 51
The FAA reviewed EASA AD 2020-0242. EASA AD 2020-0242 specifies
procedures for revising the approved AMP 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 ADDRESSES.
Other Related Service Information
The FAA reviewed Chapter 05-10 of Rolls-Royce (RR) Trent 1000 TLM
T-TRENT-10RRB, dated August 1, 2020. RR Trent 1000 TLM T-TRENT-10RRB,
Chapter 05-10, identifies the reduced life limits of certain critical
rotating parts.
The FAA also reviewed Chapter 05-20 of RR Trent 1000 TLM T-TRENT-
10RRB, dated August 1, 2020. RR Trent 1000 TLM T-TRENT-10RRB, Chapter
05-20, identifies the critical rotating part inspection thresholds and
intervals.
AD Requirements
This AD requires accomplishing the actions specified in EASA AD
2020-0242, described previously, as incorporated by reference, except
for any differences identified as exceptions in the regulatory text of
this AD and except as discussed under ``Differences Between this 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 civil aviation authorities
(CAAs) to use this process. As a result, EASA AD 2020-0242 will be
incorporated in this final rule. This AD, therefore, requires
compliance with EASA AD 2020-0242 in its entirety through that
incorporation, except for any differences identified as exceptions in
the regulatory text of this AD. Using common terms that are the same as
the heading of a particular section in EASA AD 2020-0242 does not mean
that operators need comply only with that section. For example, where
the AD
[[Page 64067]]
requirement refers to ``all required actions and compliance times,''
compliance with this AD requirement is not limited to the section
titled ``Required Action(s) and Compliance Time(s)'' in EASA AD 2020-
0242. Service information required by EASA AD 2020-0242 for compliance
will be available at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2021-0879.
Differences Between This AD and the MCAI
This AD does not mandate the ``Maintenance Tasks and Replacement of
Critical Parts'' and ``Corrective Action(s)'' sections of EASA AD 2020-
0242. Where EASA AD 2020-0242 requires compliance from its effective
date, this AD requires using the effective date of this AD. Where EASA
AD 2020-0242 requires revising the approved AMP within 12 months from
its effective date, this AD requires revising the existing approved AMP
within 90 days after the effective date of this AD. This AD does not
mandate compliance with the ``Remarks'' section of EASA AD 2020-0242.
Justification for Immediate Adoption and Determination of the Effective
Date
Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without seeking comment prior to
issuance. Further, section 553(d) of the APA authorizes agencies to
make rules effective in less than thirty days, upon a finding of good
cause.
The FAA justifies waiving notice and comment prior to adoption of
this rule because no domestic operators use this product. It is
unlikely that the FAA will receive any adverse comments or useful
information about this AD from any U.S. operator. Accordingly, notice
and opportunity for prior public comment are unnecessary, pursuant to 5
U.S.C. 553(b)(3)(B). In addition, for the foregoing reason, the FAA
finds that good cause exists pursuant to 5 U.S.C. 553(d) for making
this amendment effective in less than 30 days.
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this final rule. Send your comments to an address
listed under ADDRESSES. Include ``Docket No. FAA-2021-0879; Project
Identifier MCAI-2020-01494-E'' at the beginning of your comments. The
most helpful comments reference a specific portion of the final rule,
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 final rule 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="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this final rule.
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 AD 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 AD, 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 AD. Submissions containing CBI should be sent to Kevin
M. Clark, Aviation Safety Engineer, ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803. Any commentary that the FAA receives that
is not specifically designated as CBI will be placed in the public
docket for this rulemaking.
Regulatory Flexibility Act
The requirements of the Regulatory Flexibility Act (RFA) do not
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt
a rule without prior notice and comment. Because the FAA has determined
that it has good cause to adopt this rule without notice and comment,
RFA analysis is not required.
Costs of Compliance
The FAA estimates that this AD affects 0 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 of the AMP........... 1 work-hour x $85 per $0 $85 $0
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
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, and
(2) Will not affect intrastate aviation in Alaska.
[[Page 64068]]
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 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:
2021-21-13 Rolls-Royce Deutschland Ltd & Co KG (Type Certificate
previously held by Rolls-Royce plc): Amendment 39-21773; Docket No.
FAA-2021-0879; Project Identifier MCAI-2020-01494-E.
(a) Effective Date
This airworthiness directive (AD) is effective January 3, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Rolls-Royce Deutschland Ltd. & Co KG (RRD)
(Type Certificate previously held by Rolls-Royce plc) Trent 1000-A,
Trent 1000-AE, Trent 1000-C, Trent 1000-CE, Trent 1000-D, Trent
1000-E, Trent 1000-G, and Trent 1000-H model turbofan 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 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 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, EASA AD 2020-0242, dated November 5, 2020 (EASA AD
2020-0242).
(h) Exceptions to EASA AD 2020-0242
(1) The requirements specified in paragraphs (1) and (2) of EASA
AD 2020-0242 are not required by this AD.
(2) Where EASA AD 2020-0242 requires compliance from its
effective date, this AD requires using the effective date of this
AD.
(3) Paragraph (3) of EASA AD 2020-0242 specifies revising the
approved aircraft maintenance program (AMP) within 12 months after
its effective date, but this AD requires revising the existing
approved AMP within 90 days after the effective date of this AD.
(4) This AD does not mandate compliance with the ``Remarks''
section of EASA AD 2020-0242.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, ECO 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
ECO Branch, send it to the attention of the person identified in
paragraph (j) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#4e0f000b630f0a630f03010d0e282f2f60292138"><span class="__cf_email__" data-cfemail="e8a9a6adc5a9acc5a9a5a7aba88e8989c68f879e">[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.
(j) Related Information
For more information about this AD, contact Kevin M. Clark,
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: (781) 238-7088; email:
<a href="/cdn-cgi/l/email-protection#305b5546595e1e5d1e535c51425b705651511e575f46"><span class="__cf_email__" data-cfemail="b4dfd1c2ddda9ad99ad7d8d5c6dff4d2d5d59ad3dbc2">[email protected]</span></a>.
(k) 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 (EASA) AD 2020-0242,
dated November 5, 2020.
(ii) [Reserved]
(3) For EASA AD 2020-0242, contact the EASA, Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email:
<a href="/cdn-cgi/l/email-protection#f8b9bc8bb89d998b99d69d8d8a978899d69d8d"><span class="__cf_email__" data-cfemail="2362675063464250420d4656514c53420d4656">[email protected]</span></a>. You may find this EASA AD on the EASA website at
<a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>.
(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 (781) 238-7759. This
material may be found in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-
2021-0879.
(5) You may view this material 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#4e283c6027203d3e2b2d3a2721200e202f3c2f60292138"><span class="__cf_email__" data-cfemail="c4a2b6eaadaab7b4a1a7b0adabaa84aaa5b6a5eaa3abb2">[email protected]</span></a>, or go to <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on October 8, 2021.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021-25005 Filed 11-16-21; 8:45 am]
BILLING CODE 4910-13-P
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