Rule2021-19279
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
September 8, 2021
Effective
October 13, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2020-13-07 for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent 1000-D2, Trent 1000-J2, and Trent 1000-K2 model turbofan engines with a certain part- numbered fuel pump installed. AD 2020-13-07 required removal and replacement of the fuel pump with a part eligible for installation. This AD was prompted by the manufacturer's investigation into an unexpected reduction in fuel pump performance in certain high life fuel pumps and subsequent determination that an additional part-numbered fuel pump is subject to the same unsafe condition. This AD requires new and reduced life limits for certain part-numbered fuel pumps, depending on the engine model the fuel pump is installed on. 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 171 (Wednesday, September 8, 2021)</title>
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[Federal Register Volume 86, Number 171 (Wednesday, September 8, 2021)]
[Rules and Regulations]
[Pages 50230-50232]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-19279]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0198; Project Identifier MCAI-2020-00950-E;
Amendment 39-21695; AD 2021-17-12]
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.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2020-13-07
for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Trent 1000-D2, Trent
1000-J2, and Trent 1000-K2 model turbofan engines with a certain part-
numbered fuel pump installed. AD 2020-13-07 required removal and
replacement of the fuel pump with a part eligible for installation.
This AD was prompted by the manufacturer's investigation into an
unexpected reduction in fuel pump performance in certain high life fuel
pumps and subsequent determination that an additional part-numbered
fuel pump is subject to the same unsafe condition. This AD requires new
and reduced life limits for certain part-numbered fuel pumps, depending
on the engine model the fuel pump is installed on. The FAA is issuing
this AD to address the unsafe condition on these products.
DATES: This AD is effective October 13, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 13,
2021.
ADDRESSES: For service information identified in this final rule,
contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom;
phone: +44 (0)1332 242424; website: <a href="https://www.rolls-royce.com/contact-us.aspx">https://www.rolls-royce.com/contact-us.aspx</a>. 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. It is
also available at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2021-0198.
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-2021-0198; 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 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.
FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
phone: (781) 238-7088; fax: (781) 238-7199; email:
<a href="/cdn-cgi/l/email-protection#7b101e0d121555165518171a09103b1d1a1a551c140d"><span class="__cf_email__" data-cfemail="58333d2e31367635763b34392a33183e3939763f372e">[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 2020-13-07, Amendment 39-21152 (85 FR
38312, June 26, 2020), (AD 2020-13-07). AD 2020-13-07 applied to all
RRD Trent 1000-D2, Trent 1000-J2, and Trent 1000-K2 model turbofan
engines with fuel pump, part number G5030FPU01, installed. The NPRM
published in the Federal Register on March 30, 2021 (86 FR 16548). The
NPRM was prompted by the manufacturer's investigation into an
unexpected reduction in fuel pump performance in certain high life fuel
pumps and life-related wear-out of the internal components and
subsequent determination that an additional part-numbered fuel pump is
subject to this same unsafe condition. In the NPRM, the FAA proposed to
retain all the requirements of AD 2020-13-07. In the NPRM, the FAA also
proposed to add an additional part-numbered fuel pump and additional
Trent 1000 model turbofan engines on which this fuel pump is installed
to the applicability. In the NPRM, the FAA also proposed to require new
and reduced life limits for certain part-numbered fuel pumps,
[[Page 50231]]
depending on the engine model the fuel pump is installed on. The FAA is
issuing this AD to address the unsafe condition on these products.
The European Union Aviation Safety Agency (EASA), which is the
Technical Agent for the Member States of the European Community, has
issued EASA AD 2021-0006, dated January 7, 2021 (referred to after this
as ``the MCAI''), to address the unsafe condition on these products.
The MCAI states:
An unexpected reduction in fuel pump performance has been seen
during testing of high life units. Strip examination of these fuel
pumps has identified that life related wear-out of the internal
components is causing deterioration in pump efficiency. The effect
of the loss of fuel pump efficiency is more pronounced on higher
rated engines.
This condition, if not corrected, could lead to reduced engine
thrust, possibly resulting in reduced control of the aeroplane.
To address this potential unsafe condition, Rolls-Royce
published NMSB 73-AK581 (original issue) to provide instructions for
replacement of the affected parts before exceeding reduced life
limits. Consequently, EASA issued AD 2020-0124 to require the
removal from service of the affected parts.
After that [EASA] AD was issued, Rolls-Royce issued NMSB 73-
AK581 Revision 1, introducing an additional fuel pump, P/N TPS1000-
05, as well as new and reduced life limits for the affected parts,
depending on engine model (rating). Consequently, EASA issued AD
2020-0154, retaining the requirements of EASA AD 2020-0124, which
was superseded, expanding the Applicability to include additional
engine models (ratings) and requiring implementation of the new and
reduced life limits.
Since that [EASA] AD was issued, Rolls-Royce issued the NMSB, as
defined in this [EASA] AD, introducing new and reduced life limits
for the affected parts, depending on engine model (rating).
For the reason described above, this [EASA] AD retains the
requirements of EASA AD 2020-0154, which is superseded, and requires
implementation of the new and reduced life limits, as applicable.
You may obtain further information by examining the MCAI in the AD
docket on <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating
Docket No. FAA-2021-0198.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from two commenters. The commenters were
The Boeing Company (Boeing) and Rolls-Royce. The following presents the
comments received on the NPRM and the FAA's response to each comment.
Request To Update Service Bulletin
Boeing and Rolls-Royce requested that the FAA update the specified
service information by referencing Revision 3 of Rolls-Royce (RR) Alert
Non-Modification Service Bulletin (NMSB) TRENT 1000-73-AK581.
The FAA agrees and has updated this AD to reference RR Alert NMSB
TRENT 1000-73-AK581, Revision 3, dated April 7, 2021. This change to
this AD imposes no additional burden on operators.
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes and any
other changes described previously, this AD is adopted as proposed in
the NPRM. None of the changes will increase the economic burden on any
operator.
Related Service Information Under 1 CFR Part 51
The FAA reviewed RR Alert NMSB TRENT 1000-73-AK581, Revision 3,
dated April 7, 2021 (RR Alert NMSB). The RR Alert NMSB introduces a
reduced life limit for affected fuel pumps installed on certain RRD
Trent 1000 model turbofan engines. The RR Alert NMSB also includes
additional RRD Trent 1000 turbofan engine models that require
implementation of the reduced life limits for affected fuel pumps. 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.
Interim Action
The FAA considers this AD interim action. If final action is later
identified, the FAA might consider further rulemaking.
Costs of Compliance
The FAA estimates that this AD affects 28 engines installed on
airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Replace fuel pump................... 3 work-hours x $85 per $393,552 $393,807 $11,026,596
hour = $255.
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The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some of the costs of this AD
may be covered under warranty, thereby reducing the cost impact on
affected individuals.
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.
[[Page 50232]]
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 part 39 of the Federal Aviation
Regulations (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 2020-13-07, Amendment 39-21152 (85
FR 38312, June 26, 2020); and
0
b. Adding the following new airworthiness directive:
2021-17-12 Rolls-Royce Deutschland Ltd & Co KG (Type Certificate
previously held by Rolls-Royce plc): Amendment 39-21695; Docket No.
FAA-2021-0198; Project Identifier MCAI-2020-00950-E.
(a) Effective Date
This airworthiness directive (AD) is effective October 13, 2021.
(b) Affected ADs
This AD replaces AD 2020-13-07, Amendment 39-21152 (85 FR 38312,
June 26, 2020).
(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-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-G, Trent 1000-G2, Trent 1000-H, Trent 1000-H2, Trent
1000-J2, Trent 1000-K2, and Trent 1000-L2 model turbofan engines
with a fuel pump, part number (P/N) G5030FPU01 or P/N TPS1000-05,
installed.
(d) Subject
Joint Aircraft System Component (JASC) Code 7314, Engine Fuel
Pump.
(e) Unsafe Condition
This AD was prompted by the manufacturer's investigation into an
unexpected reduction in fuel pump performance in certain high life
fuel pumps and life-related wear-out of the internal components,
which causes deterioration in fuel pump efficiency. The FAA is
issuing this AD to prevent failure of the fuel pump, loss of engine
thrust control and reduced control of the airplane. The unsafe
condition, if not addressed, could result in failure of the fuel
pump, 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
Within the compliance time specified in Planning Information,
paragraph 1.D.2, of Rolls-Royce (RR) Alert Non-Modification Service
Bulletin TRENT 1000 73-AK581, Revision 3, dated April 7, 2021 (the
RR Alert NMSB), or within 30 days after the effective date of this
AD, whichever occurs later, remove the fuel pump, P/N G5030FPU01 or
P/N TPS1000-05, and replace it with a part eligible for
installation.
(h) Definition
For the purpose of this AD, a ``part eligible for installation''
is a fuel pump with a P/N other than G5030FPU01 or TPS1000-05 or a
fuel pump that has not exceeded the compliance time specified in
Planning Information, paragraph 1.D.2, of the RR Alert NMSB.
(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
certification office, send it to the attention of the person
identified in paragraph (j) of this AD. You may email your request
to: <a href="/cdn-cgi/l/email-protection#2869666d05696c056965676b684e4949064f475e"><span class="__cf_email__" data-cfemail="2869666d05696c056965676b684e4949064f475e">[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
(1) 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; fax: (781) 238-7199;
email: <a href="/cdn-cgi/l/email-protection#86ede3f0efe8a8eba8e5eae7f4edc6e0e7e7a8e1e9f0"><span class="__cf_email__" data-cfemail="630806150a0d4d0e4d000f021108230502024d040c15">[email protected]</span></a>.
(2) Refer to European Union Aviation Safety Agency (EASA) AD
2021-0006, dated January 7, 2021, for more information. You may
examine the EASA AD in the AD docket at <a href="http://www.regulations.gov">http://www.regulations.gov</a>
by searching for and locating Docket No. FAA-2021-0198.
(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 the AD specifies otherwise.
(i) Rolls-Royce (RR) Alert Non-Modification Service Bulletin
TRENT 1000-73-AK581, Revision 3, dated April 7, 2021.
(ii) [Reserved]
(3) For RR service information identified in this AD, contact
Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom;
phone: +44 (0)1332 242424; website: <a href="https://www.rolls-royce.com/contact-us.aspx">https://www.rolls-royce.com/contact-us.aspx</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.
(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#a2c4d08ccbccd1d2c7c1d6cbcdcce2ccc3d0c38cc5cdd4"><span class="__cf_email__" data-cfemail="3452461a5d5a47445157405d5b5a745a5546551a535b42">[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 August 12, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-19279 Filed 9-7-21; 8:45 am]
BILLING CODE 4910-13-P
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