Airworthiness Directives; General Electric Company Turboshaft Engines, 27634-27635 [2017-12242]
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27634
Federal Register / Vol. 82, No. 115 / Friday, June 16, 2017 / Proposed Rules
(k) Terminating Action
DEPARTMENT OF TRANSPORTATION
The modification required in paragraph (j)
of this AD terminates the actions required in
paragraphs (g) and (h) of this AD.
Federal Aviation Administration
14 CFR Part 39
(l) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, International
Branch, ANM–116, Transport Airplane
Directorate, 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 International Branch, send it to the
attention of the person identified in
paragraph (m)(2) of this AD. Information may
be emailed to: 9-ANM-116-AMOCREQUESTS@faa.gov. 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.
(2) Contacting the Manufacturer: As of the
effective date of this AD, for any requirement
in this AD to obtain corrective actions from
a manufacturer, the action must be
accomplished using a method approved by
the Manager, International Branch, ANM–
116, Transport Airplane Directorate, FAA; or
the EASA; or EADS CASA’s EASA DOA. If
approved by the DOA, the approval must
include the DOA-authorized signature.
nlaroche on DSK30NT082PROD with PROPOSALS
(m) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) EASA AD
2016–0201, dated October 11, 2016, for
related information. This MCAI may be
found in the AD docket on the Internet at
https://www.regulations.gov by searching for
and locating Docket No. FAA–2017–0555.
(2) For more information about this AD,
contact Shahram Daneshmandi, Aerospace
Engineer, International Branch, ANM–116,
Transport Airplane Directorate, FAA, 1601
Lind Avenue SW., Renton, WA 98057–3356;
telephone 425–227–1112; fax 425–227–1149.
(3) For service information identified in
this AD, contact Airbus Defense and Space
Services/Engineering Support, Avenida de
´
Aragon 404, 28022 Madrid, Spain; telephone
+34 91 585 55 84; fax +34 91 585 31 27; email
MTA.TechnicalService@airbus.com. You
may view this service information at the
FAA, Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
Issued in Renton, Washington, on June 6,
2017.
Michael Kaszycki,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. 2017–12252 Filed 6–15–17; 8:45 am]
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VerDate Sep<11>2014
14:13 Jun 15, 2017
Jkt 241001
[Docket No. FAA–2017–0452; Directorate
Identifier 2017–NE–14–AD]
RIN 2120–AA64
Airworthiness Directives; General
Electric Company Turboshaft Engines
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
General Electric Company (GE) CT7–8A
and CT7–9B model turboshaft engines.
This proposed AD was prompted by
reports from the manufacturer that the
high-pressure compressor (HPC)
impeller installed on these engines may
have suffered from material degradation
during the manufacturing process. This
proposed AD would require removal of
the affected HPC impellers. We are
proposing this AD to address the unsafe
condition on these products.
DATES: We must receive comments on
this proposed AD by July 31, 2017.
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 NPRM, contact General Electric
Company, GE-Aviation, Room 285, 1
Neumann Way, Cincinnati, OH 45215;
phone: 513–552–3272; fax: 513–552–
3329; email: geae.aoc@ge.com. You may
view this service information at the
FAA, Engine & Propeller Directorate,
1200 District Avenue, Burlington, MA.
For information on the availability of
this material at the FAA, call 781–238–
7125.
SUMMARY:
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–2017–
PO 00000
Frm 00010
Fmt 4702
Sfmt 4702
0452; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this NPRM, the regulatory
evaluation, any comments received, and
other information. The street address for
the Docket 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:
Martin Adler, Aerospace Engineer,
Engine Certification Office, FAA, Engine
& Propeller Directorate, 1200 District
Avenue, Burlington, MA 01803; phone:
781–238–7157; fax: 781–238–7199;
email: martin.adler@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposal. Send your comments to
an address listed under the ADDRESSES
section. Include ‘‘Docket No. FAA–
2017–0452; Directorate Identifier 2017–
NE–14–AD’’ at the beginning of your
comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this NPRM. We will consider
all comments received by the closing
date and may amend this NPRM
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 NPRM.
Discussion
We learned from the manufacturer
that the affected HPC impellers installed
on CT7–8A and CT7–9B turboshaft
engines may have suffered from material
degradation during the manufacturing
process. This condition, if not corrected,
could result in failure of the HPC
impeller, uncontained HPC impeller
release, damage to the engine, and
damage to the airplane/helicopter.
Related Service Information
We reviewed GE Service Bulletin (SB)
CT7–TP S/B 72–0524, dated June 16,
2016. The SB describes procedures for
replacing the affected HPC impellers.
FAA’s Determination
We are proposing 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.
E:\FR\FM\16JNP1.SGM
16JNP1
Federal Register / Vol. 82, No. 115 / Friday, June 16, 2017 / Proposed Rules
Proposed AD Requirements
Costs of Compliance
This proposed AD would require
removal of the affected HPC impellers.
We estimate that this proposed AD
affects 1 engine installed on a helicopter
of U.S. registry.
27635
We estimate the following costs to
comply with this proposed AD:
ESTIMATED COSTS
Action
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
Replace HPC impeller ....................................
0 work-hours × $85 per hour = $0 .................
$70,000
$70,000
$70,000
Authority for This Rulemaking
List of Subjects in 14 CFR Part 39
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.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
nlaroche on DSK30NT082PROD with PROPOSALS
Regulatory Findings
We determined that this proposed AD
would not have federalism implications
under Executive Order 13132. This
proposed AD would 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 this proposed regulation:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under
the 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.
VerDate Sep<11>2014
14:13 Jun 15, 2017
Jkt 241001
The Proposed 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
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):
■
General Electric Company: Docket No. FAA–
2017–0452; Directorate Identifier 2017–
NE–14–AD.
(a) Comments Due Date
We must receive comments by July 31,
2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to General Electric
Company (GE) CT7–8A and CT7–9B model
turboshaft engines with a high-pressure
compressor (HPC) impeller, part number
5123T51P02, and serial number, GLHTPH9G,
GLHTPP7P, or GLHTPJHN, installed.
(d) Subject
Joint Aircraft System Component (JASC)
Code 7230, Turbine Engine Compressor
Section.
(e) Unsafe Condition
This AD was prompted by reports from the
manufacturer that the HPC impeller installed
on these engines may have suffered from
material degradation during the
manufacturing process. We are issuing this
AD to prevent failure of the HPC impeller.
This unsafe condition, if not corrected, could
result in failure of the HPC impeller,
uncontained HPC impeller release, damage to
the engine, and damage to the airplane/
helicopter.
PO 00000
Frm 00011
Fmt 4702
Sfmt 9990
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(1) For CT7–9B engines, remove the
affected HPC impeller from service at the
next engine shop visit after the effective date
of this AD, or prior to accumulating 12,000
cycles since new, whichever is earlier.
(2) For CT7–8A engines, remove the
affected HPC impeller from service at the
next engine shop visit after the effective date
of this AD, or prior to accumulating 1,500
engine hours after the effective date of this
AD, whichever is earlier.
(g) Definition
For the purpose of this AD, an ‘‘engine
shop visit’’ is the induction of an engine into
the shop for maintenance involving the
separation of pairs of major mating engine
flanges.
(h) 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. You may email your
request to: ANE-AD-AMOC@faa.gov.
(i) Related Information
(1) For more information about this AD,
contact Martin Adler, Aerospace Engineer,
Engine Certification Office, FAA, Engine &
Propeller Directorate, 1200 District Avenue,
Burlington, MA 01803; phone: 781–238–
7157; fax: 781–238–7199; email:
martin.adler@faa.gov.
(2) GE Service Bulletin CT7–TP S/B 72–
0524, dated June 16, 2016, can be obtained
from GE using the contact information in
paragraph (i)(3) of this proposed AD.
(3) For service information identified in
this proposed AD, contact General Electric
Company, GE-Aviation, Room 285, 1
Neumann Way, Cincinnati, OH 45215;
phone: 513–552–3272; fax: 513–552–3329;
email: geae.aoc@ge.com.
(4) You may view this service information
at the FAA, Engine & Propeller Directorate,
1200 District Avenue, Burlington, MA. For
information on the availability of this
material at the FAA, call 781–238–7125.
Issued in Burlington, Massachusetts, on
June 8, 2017.
Robert J. Ganley,
Acting Manager, Engine & Propeller
Directorate, Aircraft Certification Service.
[FR Doc. 2017–12242 Filed 6–15–17; 8:45 am]
BILLING CODE 4910–13–P
E:\FR\FM\16JNP1.SGM
16JNP1
Agencies
[Federal Register Volume 82, Number 115 (Friday, June 16, 2017)]
[Proposed Rules]
[Pages 27634-27635]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-12242]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0452; Directorate Identifier 2017-NE-14-AD]
RIN 2120-AA64
Airworthiness Directives; General Electric Company Turboshaft
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain General Electric Company (GE) CT7-8A and CT7-9B model
turboshaft engines. This proposed AD was prompted by reports from the
manufacturer that the high-pressure compressor (HPC) impeller installed
on these engines may have suffered from material degradation during the
manufacturing process. This proposed AD would require removal of the
affected HPC impellers. We are proposing this AD to address the unsafe
condition on these products.
DATES: We must receive comments on this proposed AD by July 31, 2017.
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 NPRM, contact General
Electric Company, GE-Aviation, Room 285, 1 Neumann Way, Cincinnati, OH
45215; phone: 513-552-3272; fax: 513-552-3329; email: geae.aoc@ge.com.
You may view this service information at the FAA, Engine & Propeller
Directorate, 1200 District Avenue, Burlington, MA. For information on
the availability of this material at the FAA, call 781-238-7125.
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-2017-
0452; or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this NPRM, the regulatory evaluation, any comments received,
and other information. The street address for the Docket 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: Martin Adler, Aerospace Engineer,
Engine Certification Office, FAA, Engine & Propeller Directorate, 1200
District Avenue, Burlington, MA 01803; phone: 781-238-7157; fax: 781-
238-7199; email: martin.adler@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2017-0452;
Directorate Identifier 2017-NE-14-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this NPRM. We will
consider all comments received by the closing date and may amend this
NPRM 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 NPRM.
Discussion
We learned from the manufacturer that the affected HPC impellers
installed on CT7-8A and CT7-9B turboshaft engines may have suffered
from material degradation during the manufacturing process. This
condition, if not corrected, could result in failure of the HPC
impeller, uncontained HPC impeller release, damage to the engine, and
damage to the airplane/helicopter.
Related Service Information
We reviewed GE Service Bulletin (SB) CT7-TP S/B 72-0524, dated June
16, 2016. The SB describes procedures for replacing the affected HPC
impellers.
FAA's Determination
We are proposing 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.
[[Page 27635]]
Proposed AD Requirements
This proposed AD would require removal of the affected HPC
impellers.
Costs of Compliance
We estimate that this proposed AD affects 1 engine installed on a
helicopter of U.S. registry.
We estimate the following costs to comply with this proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Replace HPC impeller.............. 0 work-hours x $85 per $70,000 $70,000 $70,000
hour = $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
We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under the 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.
The Proposed 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 (AD):
General Electric Company: Docket No. FAA-2017-0452; Directorate
Identifier 2017-NE-14-AD.
(a) Comments Due Date
We must receive comments by July 31, 2017.
(b) Affected ADs
None.
(c) Applicability
This AD applies to General Electric Company (GE) CT7-8A and CT7-
9B model turboshaft engines with a high-pressure compressor (HPC)
impeller, part number 5123T51P02, and serial number, GLHTPH9G,
GLHTPP7P, or GLHTPJHN, installed.
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by reports from the manufacturer that the
HPC impeller installed on these engines may have suffered from
material degradation during the manufacturing process. We are
issuing this AD to prevent failure of the HPC impeller. This unsafe
condition, if not corrected, could result in failure of the HPC
impeller, uncontained HPC impeller release, damage to the engine,
and damage to the airplane/helicopter.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(1) For CT7-9B engines, remove the affected HPC impeller from
service at the next engine shop visit after the effective date of
this AD, or prior to accumulating 12,000 cycles since new, whichever
is earlier.
(2) For CT7-8A engines, remove the affected HPC impeller from
service at the next engine shop visit after the effective date of
this AD, or prior to accumulating 1,500 engine hours after the
effective date of this AD, whichever is earlier.
(g) Definition
For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance involving the
separation of pairs of major mating engine flanges.
(h) 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. You may email your request to: ANE-AD-AMOC@faa.gov.
(i) Related Information
(1) For more information about this AD, contact Martin Adler,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 1200 District Avenue, Burlington, MA 01803;
phone: 781-238-7157; fax: 781-238-7199; email: martin.adler@faa.gov.
(2) GE Service Bulletin CT7-TP S/B 72-0524, dated June 16, 2016,
can be obtained from GE using the contact information in paragraph
(i)(3) of this proposed AD.
(3) For service information identified in this proposed AD,
contact General Electric Company, GE-Aviation, Room 285, 1 Neumann
Way, Cincinnati, OH 45215; phone: 513-552-3272; fax: 513-552-3329;
email: geae.aoc@ge.com.
(4) You may view this service information at the FAA, Engine &
Propeller Directorate, 1200 District Avenue, Burlington, MA. For
information on the availability of this material at the FAA, call
781-238-7125.
Issued in Burlington, Massachusetts, on June 8, 2017.
Robert J. Ganley,
Acting Manager, Engine & Propeller Directorate, Aircraft Certification
Service.
[FR Doc. 2017-12242 Filed 6-15-17; 8:45 am]
BILLING CODE 4910-13-P