Airworthiness Directives; General Electric Company Turbofan Engines, 57666-57668 [2020-20337]
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57666
Federal Register / Vol. 85, No. 180 / Wednesday, September 16, 2020 / Rules and Regulations
PART 1600—EMPLOYEE
CONTRIBUTION ELECTIONS,
CONTRIBUTION ALLOCATIONS, AND
AUTOMATIC ENROLLMENT
PROGRAM
NATIONAL CREDIT UNION
ADMINISTRATION
1. The authority citation continues to
read as follows:
Chartering and Field of Membership
■
Authority: 5 U.S.C. 8351, 8432(a), 8432(b),
8432(c), 8432(j), 8432d, 8474(b)(5) and (c)(1),
and 8440e.
§ 1600.34
[Amended]
2. In § 1600.34, amend paragraphs (a),
(b), and (c) by removing the term ‘‘3%’’
and adding the term ‘‘5%’’ in its place.
■
§ 1600.37
[Amended]
12 CFR Part 701
RIN 3133–AF06
Correction
In rule document 2020–16988
appearing on pages 56498–56514 in the
issue of September 14, 2020, make the
following correction:
On page 56498, in the third column,
in the DATES section, in the second line
‘‘September 14, 2020’’ should read
‘‘October 14, 2020’’.
[FR Doc. C1–2020–16988 Filed 9–14–20; 11:15 am]
3. In § 1600.37, amend paragraph (a)
by removing the term ‘‘3 percent’’ and
adding the term ‘‘5 percent’’ in its place.
■
BILLING CODE 1301–00–D
DEPARTMENT OF TRANSPORTATION
PART 1650—METHODS OF
WITHDRAWING FUNDS FROM THE
THRIFT SAVINGS PLAN
Federal Aviation Administration
14 CFR Part 39
4. The authority citation continues to
read as follows:
■
Authority: 5 U.S.C. 8351, 8432d, 8433,
8434, 8435, 8474(b)(5) and 8474(c)(1).
RIN 2120–AA64
5. Amend § 1650.13 by revising
paragraph (a)(2) to read as follows:
■
jbell on DSKJLSW7X2PROD with RULES
§ 1650.13
Airworthiness Directives; General
Electric Company Turbofan Engines
Installment payments.
(a) * * *
(2) An installment payment amount
calculated based on life expectancy.
Payments based on life expectancy are
determined using the factors set forth in
the Internal Revenue Service life
expectancy tables codified at 26 CFR
1.401(a)(9)–9, Q&A 1 and 2. The
installment payment amount is
calculated by dividing the account
balance by the factor from the IRS life
expectancy tables based upon the
participant’s age as of his or her
birthday in the year payments are to
begin. This amount is then divided by
the number of installment payments to
be made per calendar year to yield the
installment payment amount. In
subsequent years, the installment
payment amount is recalculated on the
first installment payment date of the
year by dividing the prior December 31
account balance by the factor in the IRS
life expectancy tables based upon the
participant’s age as of his or her
birthday in the year payments will be
made. There is no minimum amount for
an installment payment calculated
based on this method.
*
*
*
*
*
[FR Doc. 2020–17811 Filed 9–15–20; 8:45 am]
BILLING CODE 6760–01–P
VerDate Sep<11>2014
16:31 Sep 15, 2020
Jkt 250001
[Docket No. FAA–2020–0494; Project
Identifier AD–2020–00324–E; Amendment
39–21235; AD 2020–18–14]
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all
General Electric Company (GE) GE90–
110B1 and GE90–115B model turbofan
engines with a certain high-pressure
turbine (HPT) rotor stage 2 disk
installed. This AD was prompted by a
report from the manufacturer that a
subsurface anomaly was found on a
HPT rotor stage 2 disk. This AD requires
an ultrasonic inspection (USI) of the
HPT rotor stage 2 disk and, depending
on the result of the inspection,
replacement of the HPT rotor stage 2
disk with a part eligible for installation.
The FAA is issuing this AD to address
the unsafe condition on these products.
DATES: This AD is effective October 21,
2020.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of October 21, 2020.
ADDRESSES: For service information
identified in this final rule, contact
General Electric Company, 1 Neumann
Way, Cincinnati, OH 45215; phone:
513–552–3272; email:
aviation.fleetsupport@ae.ge.com. You
SUMMARY:
PO 00000
Frm 00002
Fmt 4700
Sfmt 4700
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 on the internet at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0494.
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0494; 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,
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:
Stephen Elwin, Aerospace Engineer,
ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone:
781–238–7236; fax: 781–238–7199;
email: stephen.l.elwin@faa.gov.
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 GE GE90–110B1 and GE90–
115B model turbofan engines with a
certain HPT rotor stage 2 disk installed.
The NPRM published in the Federal
Register on May 18, 2020 (85 FR 29676).
The NPRM was prompted by a report
from the manufacturer that a subsurface
anomaly was found on a HPT rotor stage
2 disk. The NPRM proposed to require
a USI of the HPT rotor stage 2 disk and,
depending on the result of the
inspection, replacement of the HPT
rotor stage 2 disk with a part eligible for
installation. The FAA is issuing this AD
to address the unsafe condition on these
products.
Comments
The FAA gave the public the
opportunity to participate in developing
this final rule. The FAA has considered
the comments received. The Boeing
Company, FedEx Express, United
Airlines, and the Air Line Pilots
Association, International, supported
the NPRM.
Conclusion
The FAA reviewed the relevant data,
considered the comments received, and
E:\FR\FM\16SER1.SGM
16SER1
Federal Register / Vol. 85, No. 180 / Wednesday, September 16, 2020 / Rules and Regulations
determined that air safety and the
public interest require adopting this
final rule as proposed except for minor
editorial changes. The FAA has
determined that these minor changes:
• Are consistent with the intent that
was proposed in the NPRM for
addressing the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
57667
Costs of Compliance
Service Information Incorporated by
Reference under 1 CFR part 51
The FAA reviewed GE GE90–100
Service Bulletin (SB) 72–0838, dated
January 31, 2020. The SB describes
procedures for performing an USI of the
HPT rotor stage 2 disk. 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 the ADDRESSES section.
The FAA estimates that this AD
affects 28 engines installed on airplanes
of U.S. registry. Based on updated
information from the manufacturer, the
FAA revised the number of engines
installed on airplanes of U.S. registry
from 12 in the NPRM to 28 in this final
rule.
The FAA estimates the following
costs to comply with this AD:
ESTIMATED COSTS
Action
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
USI of HPT rotor stage 2 disk ........................
8 work-hours × $85 per hour = $680 .............
$0
$680
$19,040
The FAA estimates the following
costs to do any necessary replacements
that would be required based on the
results of the inspection. The FAA has
no way of determining the number of
engines that might need this
replacement:
ON-CONDITION COSTS
Action
Labor cost
Parts cost
Cost per
product
Remove and replace HPT rotor stage 2 disk ..............................................................................
2 work-hours ×
$85 per hour =
$170
$565,600
$565,770
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.
jbell on DSKJLSW7X2PROD with RULES
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
VerDate Sep<11>2014
16:31 Sep 15, 2020
Jkt 250001
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) 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 Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
PO 00000
Frm 00003
Fmt 4700
Sfmt 4700
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
■
2020–18–14 General Electric Company:
Amendment 39–21235; Docket No.
FAA–2020–0494; Project Identifier AD–
2020–00324–E.
(a) Effective Date
This AD is effective October 21, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all General Electric
Company (GE) GE90–110B1 and GE90–115B
model turbofan engines with a high-pressure
turbine (HPT) rotor stage 2 disk, part number
2505M73P03, and with a serial number listed
in Appendix—A, Table 1, of GE GE90–100
Service Bulletin (SB) 72–0838, dated January
31, 2020.
(d) Subject
Joint Aircraft System Component (JASC)
Code 7250, Turbine Section.
(e) Unsafe Condition
This AD was prompted by a report from
the manufacturer that a subsurface anomaly
was found on a HPT rotor stage 2 disk. The
FAA is issuing this AD to prevent failure of
the HPT rotor stage 2 disk. The unsafe
condition, if not addressed, could result in
uncontained HPT rotor stage 2 disk release,
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16SER1
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Federal Register / Vol. 85, No. 180 / Wednesday, September 16, 2020 / Rules and Regulations
damage to the engine, and damage to the
airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Action
(1) At the next piece-part exposure after the
effective date of this AD, perform an
ultrasonic inspection (USI) of the HPT rotor
stage 2 disk in accordance with the
Accomplishment Instructions, paragraph
3.B.(1)(a), of GE GE90–100 SB 72–0838, dated
January 31, 2020.
(2) If, during the USI required by paragraph
(g)(1) of this AD, a rejectable indication is
found, remove the HPT rotor stage 2 disk
from service before further flight and replace
it with a part eligible for installation.
(h) Definition
For the purpose of this AD, ‘‘piece-part
exposure’’ is when the HPT rotor stage 2 disk
is removed from the engine and completely
disassembled.
(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: ANE-AD-AMOC@
faa.gov.
(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.
jbell on DSKJLSW7X2PROD with RULES
(j) Related Information
For more information about this AD,
contact Stephen Elwin, Aerospace Engineer,
ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: 781–238–
7236; fax: 781–238–7199; email:
stephen.l.elwin@faa.gov.
(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) General Electric Company (GE) GE90–
100 Service Bulletin 72–0838, dated January
31, 2020.
(ii) [Reserved]
(3) For GE service information identified in
this AD, contact General Electric Company,
1 Neumann Way, Cincinnati, OH 45215;
phone: 513–552–3272; email:
aviation.fleetsupport@ae.ge.com.
(4) You may view this service information
at FAA, Airworthiness Products Section,
Operational Safety Branch, 1200 District
VerDate Sep<11>2014
16:31 Sep 15, 2020
Jkt 250001
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: fedreg.legal@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on August 26, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives,
Compliance & Airworthiness Division,
Aircraft Certification Service.
[FR Doc. 2020–20337 Filed 9–15–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2020–0394; Project
Identifier AD–2019–00141–E; Amendment
39–21230; AD 2020–18–09]
RIN 2120–AA64
Airworthiness Directives; Honeywell
International Inc. Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all
Honeywell International Inc.
(Honeywell) ALF502L, ALF502L–2,
ALF502L–2A, ALF502L–2C, ALF502L–
3, ALF502R–3, ALF502R–3A,
ALF502R–4, ALF502R–5, ALF502R–6,
LF507–1F, and LF507–1H model
turbofan engines. This AD was
prompted by a report of an engine
experiencing an uncontained release of
low-pressure turbine (LPT) blades. This
AD requires initial and repetitive visual
inspections of the overspeed fuel
solenoid valve assembly and the fuel
filter outlet. Depending on the results of
these inspections, the AD may require
inspection of the adjacent fuel system
tube assemblies as well as replacement
or overhaul of the overspeed fuel
solenoid valve assembly. This AD also
requires periodic overhaul of the
overspeed fuel solenoid valve assembly.
The FAA is issuing this AD to address
the unsafe condition on these products.
DATES: This AD is effective October 21,
2020.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of October 21, 2020.
SUMMARY:
PO 00000
Frm 00004
Fmt 4700
Sfmt 4700
For service information
identified in this final rule, contact
Honeywell International Inc., 111 S.
34th Street, Phoenix, AZ 85034–2802;
phone: 800–601–3099; website: https://
aerospace.honeywell.com/en#/. 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 on the internet at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0394.
ADDRESSES:
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0394; 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,
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:
Mark Matzke, Aerospace Engineer, Los
Angeles ACO Branch, FAA, 3960
Paramount Boulevard, Lakewood, CA
90712–4137; phone: 562–627–5312; fax:
562–627–5210; email: mark.matzke@
faa.gov.
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 Honeywell ALF502L,
ALF502L–2, ALF502L–2A, ALF502L–
2C, ALF502L–3, ALF502R–3, ALF502R–
3A, ALF502R–4, ALF502R–5,
ALF502R–6, LF507–1F, and LF507–1H
model turbofan engines. The NPRM
published in the Federal Register on
May 4, 2020 (85 FR 26375). The NPRM
was prompted by a report of an engine
experiencing an uncontained release of
LPT blades. The NPRM proposed to
require initial and repetitive visual
inspections of the overspeed fuel
solenoid valve assembly and the fuel
filter outlet. Depending on the results of
these inspections, the NPRM proposed
to require inspection of the adjacent fuel
system tube assemblies as well as
replacement or overhaul of the
overspeed fuel solenoid valve assembly.
The NPRM also proposed to require
periodic overhaul of the overspeed fuel
E:\FR\FM\16SER1.SGM
16SER1
]]>Agencies
[Federal Register Volume 85, Number 180 (Wednesday, September 16, 2020)]
[Rules and Regulations]
[Pages 57666-57668]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-20337]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0494; Project Identifier AD-2020-00324-E;
Amendment 39-21235; AD 2020-18-14]
RIN 2120-AA64
Airworthiness Directives; General Electric Company Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
General Electric Company (GE) GE90-110B1 and GE90-115B model turbofan
engines with a certain high-pressure turbine (HPT) rotor stage 2 disk
installed. This AD was prompted by a report from the manufacturer that
a subsurface anomaly was found on a HPT rotor stage 2 disk. This AD
requires an ultrasonic inspection (USI) of the HPT rotor stage 2 disk
and, depending on the result of the inspection, replacement of the HPT
rotor stage 2 disk with a part eligible for installation. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective October 21, 2020.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 21,
2020.
ADDRESSES: For service information identified in this final rule,
contact General Electric Company, 1 Neumann Way, Cincinnati, OH 45215;
phone: 513-552-3272; email: [email protected]. 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 on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0494.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0494; 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, 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: Stephen Elwin, Aerospace Engineer, ECO
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7236; fax: 781-238-7199; email: [email protected].
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 GE GE90-110B1 and
GE90-115B model turbofan engines with a certain HPT rotor stage 2 disk
installed. The NPRM published in the Federal Register on May 18, 2020
(85 FR 29676). The NPRM was prompted by a report from the manufacturer
that a subsurface anomaly was found on a HPT rotor stage 2 disk. The
NPRM proposed to require a USI of the HPT rotor stage 2 disk and,
depending on the result of the inspection, replacement of the HPT rotor
stage 2 disk with a part eligible for installation. The FAA is issuing
this AD to address the unsafe condition on these products.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA has considered the comments
received. The Boeing Company, FedEx Express, United Airlines, and the
Air Line Pilots Association, International, supported the NPRM.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and
[[Page 57667]]
determined that air safety and the public interest require adopting
this final rule as proposed except for minor editorial changes. The FAA
has determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Service Information Incorporated by Reference under 1 CFR part 51
The FAA reviewed GE GE90-100 Service Bulletin (SB) 72-0838, dated
January 31, 2020. The SB describes procedures for performing an USI of
the HPT rotor stage 2 disk. 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 the
ADDRESSES section.
Costs of Compliance
The FAA estimates that this AD affects 28 engines installed on
airplanes of U.S. registry. Based on updated information from the
manufacturer, the FAA revised the number of engines installed on
airplanes of U.S. registry from 12 in the NPRM to 28 in this final
rule.
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
----------------------------------------------------------------------------------------------------------------
USI of HPT rotor stage 2 disk....... 8 work-hours x $85 per $0 $680 $19,040
hour = $680.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
inspection. The FAA has no way of determining the number of engines
that might need this replacement:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Remove and replace HPT rotor stage 2 disk.................... 2 work-hours x $565,600 $565,770
$85 per hour =
$170
----------------------------------------------------------------------------------------------------------------
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) 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 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 (AD):
2020-18-14 General Electric Company: Amendment 39-21235; Docket No.
FAA-2020-0494; Project Identifier AD-2020-00324-E.
(a) Effective Date
This AD is effective October 21, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all General Electric Company (GE) GE90-110B1
and GE90-115B model turbofan engines with a high-pressure turbine
(HPT) rotor stage 2 disk, part number 2505M73P03, and with a serial
number listed in Appendix--A, Table 1, of GE GE90-100 Service
Bulletin (SB) 72-0838, dated January 31, 2020.
(d) Subject
Joint Aircraft System Component (JASC) Code 7250, Turbine
Section.
(e) Unsafe Condition
This AD was prompted by a report from the manufacturer that a
subsurface anomaly was found on a HPT rotor stage 2 disk. The FAA is
issuing this AD to prevent failure of the HPT rotor stage 2 disk.
The unsafe condition, if not addressed, could result in uncontained
HPT rotor stage 2 disk release,
[[Page 57668]]
damage to the engine, and damage to the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Action
(1) At the next piece-part exposure after the effective date of
this AD, perform an ultrasonic inspection (USI) of the HPT rotor
stage 2 disk in accordance with the Accomplishment Instructions,
paragraph 3.B.(1)(a), of GE GE90-100 SB 72-0838, dated January 31,
2020.
(2) If, during the USI required by paragraph (g)(1) of this AD,
a rejectable indication is found, remove the HPT rotor stage 2 disk
from service before further flight and replace it with a part
eligible for installation.
(h) Definition
For the purpose of this AD, ``piece-part exposure'' is when the
HPT rotor stage 2 disk is removed from the engine and completely
disassembled.
(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: [email protected].
(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 Stephen Elwin,
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: 781-238-7236; fax: 781-238-7199; email:
[email protected].
(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) General Electric Company (GE) GE90-100 Service Bulletin 72-
0838, dated January 31, 2020.
(ii) [Reserved]
(3) For GE service information identified in this AD, contact
General Electric Company, 1 Neumann Way, Cincinnati, OH 45215;
phone: 513-552-3272; email: [email protected].
(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 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: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on August 26, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020-20337 Filed 9-15-20; 8:45 am]
BILLING CODE 4910-13-P
