Airworthiness Directives; General Electric Company Turbofan Engines, 38195-38197 [2013-15001]
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38195
Rules and Regulations
Federal Register
Vol. 78, No. 123
Wednesday, June 26, 2013
This section of the FEDERAL REGISTER
contains regulatory documents having general
applicability and legal effect, most of which
are keyed to and codified in the Code of
Federal Regulations, which is published under
50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by
the Superintendent of Documents. Prices of
new books are listed in the first FEDERAL
REGISTER issue of each week.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2013–0447; Directorate
Identifier 2013–NE–17–AD; Amendment
39–17488; AD 2013–10–52]
Examining the AD Docket
RIN 2120–AA64
Airworthiness Directives; General
Electric Company Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; request for
comments.
AGENCY:
We are adopting a new
airworthiness directive (AD) for all
General Electric Company (GE) GE90–
110B1 and GE90–115B turbofan
engines. This emergency AD was sent
previously to all known U.S. owners
and operators of these engines. This AD
prohibits operation of an airplane with
affected transfer gearbox assemblies
(TGBs) installed on both engines five
days after the effective date of this AD.
This AD was prompted by reports of
two failures of TGBs which resulted in
in-flight shutdowns (IFSDs). We are
issuing this AD to prevent additional
IFSDs of one or more engines, loss of
thrust control, and damage to the
airplane.
SUMMARY:
This AD is effective June 26,
2013 to all persons except those persons
to whom it was made immediately
effective by Emergency AD 2013–10–52,
issued on May 16, 2013, which
contained the requirements of this
amendment.
We must receive comments on this
AD by August 12, 2013.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
mstockstill on DSK4VPTVN1PROD with RULES
DATES:
VerDate Mar<15>2010
15:54 Jun 25, 2013
Jkt 229001
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• 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.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this AD, contact General Electric
Company, GE-Aviation, Room 285, 1
Neumann Way, Cincinnati, Ohio 45215;
phone: 513–552–3272; email:
geae.aoc@ge.com.
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations Office between 9
a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The AD
docket contains this AD, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket Operations Office (phone:
800–647–5527) is in the ADDRESSES
section. Comments will be available in
the AD docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT:
Jason Yang, Aerospace Engineer, Engine
Certification Office, FAA, Engine &
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7747; fax: 781–238–
7199; email: jason.yang@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
On May 16, 2013, we issued
Emergency AD 2013–10–52, which
prohibits operation of an airplane with
affected TGBs installed on both engines
five days after receipt of the emergency
AD. The emergency AD was sent
previously to all known U.S. owners
and operators of these GE90–110B1 and
GE90–115B turbofan engines. This
action was prompted by reports of two
failures of TGBs which resulted in
IFSDs. Investigation has revealed that
the failures were caused by TGB radial
gear cracking and separation. Further
inspections found two additional radial
gears with cracks. This condition, if not
corrected, could result in additional
IFSDs of one or more engines, loss of
PO 00000
Frm 00001
Fmt 4700
Sfmt 4700
thrust control, and damage to the
airplane.
Relevant Service Information
We reviewed GE GE90–100 Series
Alert Service Bulletin (ASB) No. GE90–
100 S/B 72–A0558, Revision 1, dated
May 14, 2013, and GE90–100 Series
ASB No. GE90–100 S/B 72–A0559,
dated May 14, 2013. The ASBs provide
additional information regarding the
affected TGBs.
FAA’s Determination
We are issuing this AD because we
evaluated all the relevant information
and determined the unsafe condition
described previously is likely to exist or
develop in other products of the same
type design.
AD Requirements
This AD prohibits operation of an
airplane with affected TGBs installed on
both engines five days after the effective
date of this AD.
Interim Action
We consider this AD to be an interim
action. We anticipate that further AD
action will follow.
FAA’s Determination of the Effective
Date
An unsafe condition exists that
requires the immediate adoption of this
AD. The FAA has found that the risk to
the flying public justifies waiving notice
and comment prior to adoption of this
rule because of the five-day compliance
time. Therefore, we find that notice and
opportunity for prior public comment
are impracticable and that good cause
exists for making this amendment
effective in less than 30 days.
Comments Invited
This AD is a final rule that involves
requirements affecting flight safety and
was not preceded by notice and an
opportunity for public comment.
However, we invite you to send any
written data, views, or arguments about
this AD. Send your comments to an
address listed under the ADDRESSES
section. Include the docket number
FAA–2013–0447 and Directorate
Identifier 2013–NE–17–AD at the
beginning of your comments. We
specifically invite comments on the
overall regulatory, economic,
environmental, and energy aspects of
this AD. We will consider all comments
E:\FR\FM\26JNR1.SGM
26JNR1
38196
Federal Register / Vol. 78, No. 123 / Wednesday, June 26, 2013 / Rules and Regulations
received by the closing date and may
amend this AD because of those
comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this AD.
Costs of Compliance
We estimate that this AD affects 20
engines installed on airplanes of U.S.
registry, and because the compliance is
only an airplane operation prohibition,
the cost of compliance on U.S. operators
is $0.
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.
We are 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) Is not a ‘‘significant rule’’ under
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation
in Alaska to the extent that it justifies
making a regulatory distinction, and
(4) 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.
Adoption of 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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive (AD):
■
2013–10–52 General Electric Company:
Amendment 39–17488; Docket No.
FAA–2013–0447; Directorate Identifier
2013–NE–17–AD.
(a) Effective Date
This airworthiness directive (AD) is
effective June 26, 2013 to all persons except
those persons to whom it was made
immediately effective by Emergency AD
2013–10–52, issued on May 16, 2013, which
contained the requirements of this
amendment.
(b) Affected ADs
None.
(c) Applicability
General Electric Company (GE) GE90–
110B1 and GE90–115B turbofan engines with
a transfer gearbox assembly (TGB), part
number 2115M33G07 or 2115M33G08, serial
number (S/N) listed in Figure 1 to paragraph
(c) of this AD, installed.
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FIGURE 1 TO PARAGRAPH (c)—TRANSFER GEARBOX ASSEMBLY S/NS
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FIA0JGE8
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FIA0H0R2
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FIA0J5LV
FIA0HYRR
FIA0J31R
15:54 Jun 25, 2013
Jkt 229001
PO 00000
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FIA0K7T1
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FIAATMYA
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FIAATH0T
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FIAAPA8T
FIAAVTMA
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FIA02N6R
26JNR1
Federal Register / Vol. 78, No. 123 / Wednesday, June 26, 2013 / Rules and Regulations
(d) Unsafe Condition
This AD was prompted by reports of two
failures of TGBs which resulted in in-flight
shutdowns (IFSDs). We are issuing this AD
to prevent additional IFSDs of one or more
engines, loss of thrust control, and damage to
the airplane.
(e) Compliance
(1) Comply with this AD within the
compliance time specified, unless already
done.
(2) Before further flight, do not operate the
airplane if more than one installed engine
has a TGB S/N listed in Figure 1 to paragraph
(c) of this AD.
(f) Alternative Methods of Compliance
(AMOCs)
The Manager, Engine Certification Office,
FAA, may approve AMOCs for this AD. Use
the procedures found in 14 CFR 39.19 to
make your request.
(g) Related Information
(1) For further information about this AD,
contact: Jason Yang, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803;
phone: 781–238–7747; fax: 781–238–7199;
email: jason.yang@faa.gov.
(2) GE GE90–100 Series Alert Service
Bulletin (ASB) No. GE90–100 S/B 72–A0558,
Revision 1, dated May 14, 2013, and GE90–
100 Series ASB No. GE90–100 S/B 72–
A0559, dated May 14, 2013, pertain to the
subject of this AD.
(3) For the service information referenced
in this AD, contact: General Electric
Company, GE-Aviation, Room 285, 1
Neumann Way, Cincinnati, Ohio 45215;
phone: 513–552–3272; email:
geae.aoc@ge.com.
(4) You may view this service information
at the FAA, Engine & Propeller Directorate,
12 New England Executive Park, Burlington,
MA. For information on the availability of
this material at the FAA, call 781–238–7125.
Issued in Burlington, Massachusetts, on
June 13, 2013.
Frank P. Paskiewicz,
Acting Director, Aircraft Certification Service.
[FR Doc. 2013–15001 Filed 6–25–13; 8:45 am]
of May 14, 2013, that amends Class D
airspace at El Monte Airport, El Monte,
CA. In that rule, the legal description
references the airport bearing
incorrectly.
Effective Date: 0901 UTC, August
22, 2013. The Director of the Federal
Register approves this incorporation by
reference action under 1 CFR part 51,
subject to the annual revision of FAA
Order 7400.9 and publication of
conforming amendments.
FOR FURTHER INFORMATION CONTACT: Rick
Roberts, Federal Aviation
Administration, Operations Support
Group, Western Service Center, 1601
Lind Avenue SW., Renton, WA 98057;
telephone (425) 203–4517.
SUPPLEMENTARY INFORMATION:
DATES:
History
The FAA published a final rule in the
Federal Register amending Class D
airspace at El Monte Airport, El Monte,
CA (78 FR 28132, May 14, 2013). In the
regulatory text, the El Monte Airport
097° bearing was incorrect, and is now
corrected to the 111° bearing.
Correction to Final Rule
Accordingly, pursuant to the authority
delegated to me, the legal description as
published in the Federal Register on
May 14, 2013 (78 FR 28132), Airspace
Docket No. 11–AWP–16, FR Doc. 2013–
11182, is corrected as follows:
■
§ 71.1
[Amended]
On page 28133, column 1, line 41,
remove ‘097° bearing’, and insert ‘111°
bearing’.
■
Issued in Seattle, Washington, on June 17,
2013.
Clark Desing,
Manager, Operations Support Group, Western
Service Center.
[FR Doc. 2013–15137 Filed 6–25–13; 8:45 am]
BILLING CODE 4910–13–P
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
Federal Aviation Administration
14 CFR Part 71
14 CFR Parts 71
mstockstill on DSK4VPTVN1PROD with RULES
[Docket FAA No. FAA–2013–0505; Airspace
Docket No. 13–AWP–4]
Amendment of Class D Airspace; El
Monte, CA
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
15:54 Jun 25, 2013
Jkt 229001
This action establishes Class
E airspace at Jefferson County
International Airport, Port Townsend,
SUMMARY:
This action corrects a final
rule published in the Federal Register
VerDate Mar<15>2010
Establishment of Class E Airspace;
Port Townsend, WA
AGENCY:
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule; correction.
AGENCY:
SUMMARY:
[Docket No. FAA–2012–0926; Airspace
Docket No. 12–ANM–24]
PO 00000
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Fmt 4700
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38197
WA, to accommodate aircraft using a
new Area Navigation (RNAV) Global
Positioning System (GPS) standard
instrument approach procedures at
Jefferson County International Airport.
This improves the safety and
management of Instrument Flight Rules
(IFR) operations at the airport.
DATES: Effective date, 0901 UTC, August
22, 2013. The Director of the Federal
Register approves this incorporation by
reference action under 1 CFR Part 51,
subject to the annual revision of FAA
Order 7400.9 and publication of
conforming amendments.
FOR FURTHER INFORMATION CONTACT:
Eldon Taylor, Federal Aviation
Administration, Operations Support
Group, Western Service Center, 1601
Lind Avenue SW., Renton, WA 98057;
telephone (425) 203–4537.
SUPPLEMENTARY INFORMATION:
History
On April 29, 2013, the FAA published
in the Federal Register a notice of
proposed rulemaking (NPRM) to
establish controlled airspace at Port
Townsend, WA (78 FR 25005).
Interested parties were invited to
participate in this rulemaking effort by
submitting written comments on the
proposal to the FAA. No comments
were received.
Class E airspace designations are
published in paragraph 6005, of FAA
Order 7400.9W dated August 8, 2012,
and effective September 15, 2012, which
is incorporated by reference in 14 CFR
71.1. The Class E airspace designations
listed in this document will be
published subsequently in that Order.
The Rule
This action amends Title 14 Code of
Federal Regulations (14 CFR) part 71 by
establishing Class E airspace extending
upward from 700 feet above the surface
within a 9.3-mile radius of Jefferson
County International Airport, with a
segment extending from the radius of
the airport to 10.1 miles west of the
airport, and from 1,200 feet above the
surface within stated geographic
coordinates of the airport, to
accommodate IFR aircraft executing
new RNAV (GPS) standard instrument
approach procedures. This action is
necessary for the safety and
management of IFR operations.
The FAA has determined this
regulation only involves an established
body of technical regulations for which
frequent and routine amendments are
necessary to keep them operationally
current. Therefore, this regulation: (1) Is
not a ‘‘significant regulatory action’’
under Executive Order 12866; (2) is not
E:\FR\FM\26JNR1.SGM
26JNR1
]]>Agencies
[Federal Register Volume 78, Number 123 (Wednesday, June 26, 2013)]
[Rules and Regulations]
[Pages 38195-38197]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-15001]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
Prices of new books are listed in the first FEDERAL REGISTER issue of each
week.
========================================================================
Federal Register / Vol. 78, No. 123 / Wednesday, June 26, 2013 /
Rules and Regulations
[[Page 38195]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2013-0447; Directorate Identifier 2013-NE-17-AD;
Amendment 39-17488; AD 2013-10-52]
RIN 2120-AA64
Airworthiness Directives; General Electric Company Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for all
General Electric Company (GE) GE90-110B1 and GE90-115B turbofan
engines. This emergency AD was sent previously to all known U.S. owners
and operators of these engines. This AD prohibits operation of an
airplane with affected transfer gearbox assemblies (TGBs) installed on
both engines five days after the effective date of this AD. This AD was
prompted by reports of two failures of TGBs which resulted in in-flight
shutdowns (IFSDs). We are issuing this AD to prevent additional IFSDs
of one or more engines, loss of thrust control, and damage to the
airplane.
DATES: This AD is effective June 26, 2013 to all persons except those
persons to whom it was made immediately effective by Emergency AD 2013-
10-52, issued on May 16, 2013, which contained the requirements of this
amendment.
We must receive comments on this AD by August 12, 2013.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
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.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this AD, contact General
Electric Company, GE-Aviation, Room 285, 1 Neumann Way, Cincinnati,
Ohio 45215; phone: 513-552-3272; email: geae.aoc@ge.com.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations Office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations Office (phone: 800-647-5527) is in the ADDRESSES
section. Comments will be available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine
Certification Office, FAA, Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA 01803; phone: 781-238-7747; fax:
781-238-7199; email: jason.yang@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
On May 16, 2013, we issued Emergency AD 2013-10-52, which prohibits
operation of an airplane with affected TGBs installed on both engines
five days after receipt of the emergency AD. The emergency AD was sent
previously to all known U.S. owners and operators of these GE90-110B1
and GE90-115B turbofan engines. This action was prompted by reports of
two failures of TGBs which resulted in IFSDs. Investigation has
revealed that the failures were caused by TGB radial gear cracking and
separation. Further inspections found two additional radial gears with
cracks. This condition, if not corrected, could result in additional
IFSDs of one or more engines, loss of thrust control, and damage to the
airplane.
Relevant Service Information
We reviewed GE GE90-100 Series Alert Service Bulletin (ASB) No.
GE90-100 S/B 72-A0558, Revision 1, dated May 14, 2013, and GE90-100
Series ASB No. GE90-100 S/B 72-A0559, dated May 14, 2013. The ASBs
provide additional information regarding the affected TGBs.
FAA's Determination
We are issuing this AD because we evaluated all the relevant
information and determined the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
AD Requirements
This AD prohibits operation of an airplane with affected TGBs
installed on both engines five days after the effective date of this
AD.
Interim Action
We consider this AD to be an interim action. We anticipate that
further AD action will follow.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because of
the five-day compliance time. Therefore, we find that notice and
opportunity for prior public comment are impracticable and that good
cause exists for making this amendment effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety and was not preceded by notice and an opportunity for public
comment. However, we invite you to send any written data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include the docket number FAA-2013-0447 and
Directorate Identifier 2013-NE-17-AD at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments
[[Page 38196]]
received by the closing date and may amend this AD because of those
comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this AD.
Costs of Compliance
We estimate that this AD affects 20 engines installed on airplanes
of U.S. registry, and because the compliance is only an airplane
operation prohibition, the cost of compliance on U.S. operators is $0.
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.
We are 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) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska to the extent
that it justifies making a regulatory distinction, and
(4) 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.
Adoption of 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):
2013-10-52 General Electric Company: Amendment 39-17488; Docket No.
FAA-2013-0447; Directorate Identifier 2013-NE-17-AD.
(a) Effective Date
This airworthiness directive (AD) is effective June 26, 2013 to
all persons except those persons to whom it was made immediately
effective by Emergency AD 2013-10-52, issued on May 16, 2013, which
contained the requirements of this amendment.
(b) Affected ADs
None.
(c) Applicability
General Electric Company (GE) GE90-110B1 and GE90-115B turbofan
engines with a transfer gearbox assembly (TGB), part number
2115M33G07 or 2115M33G08, serial number (S/N) listed in Figure 1 to
paragraph (c) of this AD, installed.
Figure 1 to Paragraph (c)--Transfer Gearbox Assembly S/Ns
----------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------
FIA0HYRT FIA0JGE8 FIA0J3YC FIA0JRTW
FIA0HV16 FIA0JEH2 FIA0JEH3 FIA0K4M6
FIA0J31V FIA0JGE7 FIA0JAVL FIA0JN33
FIA0H0R1 FIA0JLAV FIA0J70G FIA0K7TV
FIA0J3YE FIA0JLAY FIA0HV18 FIA0K56H
FIA0J1L0 FIA0JGFC FIA0J70E FIA0K7TY
FIA0J3YF FIA0JN31 FIA0JGE9 FIA0K7TW
FIA0J7FF FIA0JN3Y FIA0JLAW FIA0K4M5
FIA0J5LR FIA0JGFF FIA0H0R3 FIA0K56G
FIA0J7FH FIA0JN30 FIA0JGE6 FIA0JN32
FIA0J7FC FIA0J7Y9 FIA0JT56 FIAAV6M1
FIA0J70A FIA0JAVM FIA0JT57 FIA0K7T1
FIA0J7Y8 FIA0JGFA FIA0J7FE FIAAP6C4
FIA0J7Y7 FIA0JLAT FIA0JT6K FIA0K7T0
FIA0J31W FIA0JT58 FIA0JT6L FIAATMYA
FIA0J70C FIA0K2H1 FIA0JLAR FIA0K56K
FIA0JAVH FIA0HP4Y FIA0JRT5 FIAATH0T
FIA0J7FG FIA0HV17 FIA0JRT4 FIA0K56J
FIA0J70F FIA0HV19 FIA0JT6J FIAAPA8T
FIA0JAVK FIA0HWG3 FIA0K2H4 FIAAVTMA
FIA0JEH4 FIA0J3YG FIA0JRTV FIA0JRTY
FIA0J5LY FIA0H0R0 FIA0K2H2 FIAAR7C0
FIA0J5LT FIA0HYRV FIA0K2H3 FIAARW1V
FIA0J5LW FIA0H0R2 FIA0K4M2 FIA07PAN
FIA0JEH5 FIA0J1LY FIA0K4M4 FIA06VPP
FIA0JAVJ FIA0J31T FIA0JT59 F1A03RR4
FIA0JGE5 FIA0J1LW FIA0K2H5 FIA0JGFE
FIA0JEH6 FIA0J5LV FIA0K4M1 FIA02N6R
FIA0JGEH FIA0HYRR FIA0K56L ...................
FIA0J1LV FIA0J31R FIA0K4M3 ...................
----------------------------------------------------------------------------------------------------------------
[[Page 38197]]
(d) Unsafe Condition
This AD was prompted by reports of two failures of TGBs which
resulted in in-flight shutdowns (IFSDs). We are issuing this AD to
prevent additional IFSDs of one or more engines, loss of thrust
control, and damage to the airplane.
(e) Compliance
(1) Comply with this AD within the compliance time specified,
unless already done.
(2) Before further flight, do not operate the airplane if more
than one installed engine has a TGB S/N listed in Figure 1 to
paragraph (c) of this AD.
(f) Alternative Methods of Compliance (AMOCs)
The Manager, Engine Certification Office, FAA, may approve AMOCs
for this AD. Use the procedures found in 14 CFR 39.19 to make your
request.
(g) Related Information
(1) For further information about this AD, contact: Jason Yang,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington, MA
01803; phone: 781-238-7747; fax: 781-238-7199; email:
jason.yang@faa.gov.
(2) GE GE90-100 Series Alert Service Bulletin (ASB) No. GE90-100
S/B 72-A0558, Revision 1, dated May 14, 2013, and GE90-100 Series
ASB No. GE90-100 S/B 72-A0559, dated May 14, 2013, pertain to the
subject of this AD.
(3) For the service information referenced in this AD, contact:
General Electric Company, GE-Aviation, Room 285, 1 Neumann Way,
Cincinnati, Ohio 45215; phone: 513-552-3272; email: geae.aoc@ge.com.
(4) You may view this service information at the FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington,
MA. For information on the availability of this material at the FAA,
call 781-238-7125.
Issued in Burlington, Massachusetts, on June 13, 2013.
Frank P. Paskiewicz,
Acting Director, Aircraft Certification Service.
[FR Doc. 2013-15001 Filed 6-25-13; 8:45 am]
BILLING CODE 4910-13-P
