80 FR 24852 - Airworthiness Directives; General Electric Company CT58 Turboshaft Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 84 (May 1, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 84 (May 1, 2015)
| Page Range | 24852-24854 | |
| FR Document | 2015-09932 |
[Federal Register Volume 80, Number 84 (Friday, May 1, 2015)] [Proposed Rules] [Pages 24852-24854] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-09932] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2008-0808; Directorate Identifier 2008-NE-18-AD] RIN 2120-AA64 Airworthiness Directives; General Electric Company CT58 Turboshaft Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede airworthiness directives (ADs) 2001- 18-06 and 2008-22-16, which apply to certain General Electric Company (GE) CT58 turboshaft engines. ADs 2001-18-06 and 2008-22-16 require recalculating the lives of life-limited rotating parts using a Repetitive Heavy-Lift (RHL) multiplying factor and removal from service of parts that exceed the recalculated cyclic or hourly life limit. This proposed AD would consolidate ADs 2001-18-06 and 2008-22-16, and further reduce the life capability of certain parts. We are proposing this AD to prevent failure of life-limited rotating parts, uncontained part release, damage to the engine, and damage to the aircraft. DATES: We must receive comments on this proposed AD by June 30, 2015. 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 http://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 proposed AD, contact General Electric Company, GE Aviation, Room 285, One Neumann Way, Cincinnati, OH, 45215; phone: 513- 552-3272; email: [email protected]. 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. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2008- 0808; 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 proposed AD, 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: Sanjana Murthy, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7750; fax: 781-238-7199; email: [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2008-0808; Directorate Identifier 2008-NE-18-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any [[Page 24853]] personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion On August 24, 2001, we issued AD 2001-18-06, Amendment 39-12432 (66 FR 47575, September 13, 2001), (``AD 2001-18-06''), and on October 20, 2008, we issued AD 2008-22-16, Amendment 39-15712 (73 FR 63629, October 27, 2008), (``AD 2008-22-16''), for CT58 turboshaft engines. AD 2001- 18-06 requires the use of an RHL multiplying factor in calculating the lives of life-limited rotating parts used in RHL missions. AD 2008-22- 16 addressed a shortfall in the life capability of compressor spools used in RHL operations. We issued ADs 2001-18-06 and 2008-22-16 to prevent cracks in rotating parts that could result in an uncontained engine failure, damage to the engine, and damage to the aircraft. Actions Since ADs 2001-18-06 and 2008-22-16 Were Issued Since we issued ADs 2001-18-06 and 2008-22-16, GE updated the life limits of compressor spools. GE also updated how to calculate the life consumption of compressor spools and of life-limited rotating parts flown in Utility operations. This update resulted in generally reduced lives for compressor spools and all other life-limited parts used in Utility operations. GE published their updated life calculations for all life-limited parts in GE Alert Service Bulletin (ASB) No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015. Relevant Service Information Under 1 CFR Part 51 We reviewed GE ASB No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015. The service information describes procedures for calculating life limits for the affected life-limited rotating parts. This service information is reasonably available because the interested parties have access to it through their normal course of business or see ADDRESSES for other ways to access this service information. 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. Proposed AD Requirements This proposed AD would reduce the life limits of certain compressor spools used in all operations and, through imposition of a new lifing methodology, increase the life consumption of all rotating parts used in Utility operations. Costs of Compliance We estimate that this proposed AD would affect about 60 engines installed on aircraft of U.S. registry. The average pro-rated cost of the life-limited rotating parts is $20,000. The average labor rate is $85 per hour. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $8,715,000. 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 have 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 that the 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: 0 a. Removing airworthiness directives (AD) 2001-18-06; Amendment 39- 12432 (66 FR 47575, September 13, 2001); and AD 2008-22-16, Amendment 39-15712 (73 FR 63629, October 27, 2008), and 0 b. Adding the following new AD: General Electric Company: Docket No. FAA-2008-0808; Directorate Identifier 2008-NE-18-AD. (a) Comments Due Date The FAA must receive comments on this AD action by June 30, 2015. (b) Affected ADs This AD replaces AD 2001-18-06, Amendment 39-12432 (66 FR 47575, September 13, 2001) and AD 2008-22-16, Amendment 39-15712 (73 FR 63629, October 27, 2008. (c) Applicability This AD applies to all General Electric Company (GE) CT58-100-2, CT58-110-1, CT58-110-2, CT58-140-1, and CT58-140-2 turboshaft engines. (d) Unsafe Condition This AD was prompted by recalculation of life for parts installed on engines used in Utility operations, and a reduced life for compressor spools in all operations. We are issuing this AD to prevent failure of life-limited rotating parts, uncontained part release, damage to the engine, and damage to the aircraft. (e) Compliance Do the actions required by this AD, unless already done. (1) Calculating Cyclic Life Consumption Re-calculate the cycles-since-new for all compressor spools, and for life-limited rotating parts other than compressor spools used in Utility operations. Use paragraphs 3.A.(1) and 3.B.(1) in the Accomplishment Instructions of GE Alert Service Bulletin (ASB) No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015, to perform the calculations. [[Page 24854]] (2) Removal of Compressor Spools After the effective date of this AD, remove compressor spools, part numbers (P/Ns) 5124T94G02, 6010T57G04, 6010T57G07, and 6010T57G08 from service, before reaching the life limits specified in paragraph 4.(1), Appendix A, in GE ASB No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015, as re-calculated per paragraph (e)(1) in this AD. (3) Removal of Rotating Parts Used in Utility Operations Other Than Compressor Spools After the effective date of this AD, remove from service any life-limited rotating part used in Utility operations other than the compressor spools with P/Ns listed in paragraph (e)(2) of this AD that exceeds its life limit, as re-calculated per paragraph (e)(1) in this AD. Use Tables I, II, III, and IV in paragraphs 3.D. through 3.G. in the Accomplishment Instructions in GE ASB No. CT58 S/B 72- A0162, Revision 16, dated January 7, 2015, and paragraph 4.(4), Appendix A, of this GE ASB, to determine when to remove these parts. (4) Removal of Rotating Parts Not Used in Utility Operations Other Than Compressor Spools After the effective date of this AD, remove from service any life-limited rotating part not used in Utility operations other than the compressor spools with P/Ns listed in paragraph (e)(2) of this AD that exceeds its life limits. Use Tables I, II, III, and IV in paragraphs 3.D. through 3.G. in the Accomplishment Instructions in GE ASB No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015, and paragraph 4.(3), Appendix A of this GE ASB to determine when to remove these parts. (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. You may email your request to: [email protected]. (g) Related Information (1) For more information about this AD, contact Sanjana Murthy, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7750; fax: 781-238-7199; email: [email protected]. (2) GE ASB No. CT58 S/B 72-A0162, Revision 16, dated January 7, 2015, can be obtained from GE using the contact information in paragraph (g)(3) of this proposed AD. (3) For service information identified in this AD, contact General Electric Company, GE Aviation, Room 285, One Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: [email protected]. (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 April 17, 2015. Thomas A. Boudreau, Acting Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015-09932 Filed 4-30-15; 8:45 am] BILLING CODE 4910-13-P
![24852 Federal Register / Vol. 80, No. 84 / Friday, May 1, 2015 / Proposed Rules
(d) Subject Avenue SW., Renton, WA 98057–3356; • Fax: 202–493–2251.
Air Transport Association (ATA) of phone: 425–917–6505; fax: 425–917–6590; • Mail: U.S. Department of
America Code 28, Fuel. email: tung.tran@faa.gov. Transportation, Docket Operations, M–
(2) For service information identified in
(e) Unsafe Condition this AD, contact Boeing Commercial
30, West Building Ground Floor, Room
Airplanes, Attention: Data & Services W12–140, 1200 New Jersey Avenue SE.,
This AD was prompted by several reports Washington, DC 20590.
of chafing of the wire bundles inside the Management, P.O. Box 3707, MC 2H–65,
electrical conduit of the forward and aft boost Seattle, WA 98124–2207; phone 206–544– • Hand Delivery: Deliver to Mail
pumps of the numbers 1 and 4 main fuel 5000, extension 1; fax 206–766–5680; address above between 9 a.m. and 5
tanks due to high vibration. These wire Internet https://www.myboeingfleet.com. You p.m., Monday through Friday, except
bundles can chafe through the wire sleeving may view this referenced service information Federal holidays.
at the FAA, Transport Airplane Directorate,
into the insulation, exposing the wire For service information identified in
1601 Lind Avenue SW., Renton, WA. For
conductors. We are issuing this AD to this proposed AD, contact General
information on the availability of this
prevent chafing of the wire bundles and Electric Company, GE Aviation, Room
material at the FAA, call 425–227–1221.
subsequent arcing between the wiring and 285, One Neumann Way, Cincinnati,
the electrical conduit creating an ignition Issued in Renton, Washington, on April 17,
2015. OH, 45215; phone: 513- 552–3272;
source in the fuel tanks, which could result
in a fire and consequent fuel tank explosion.
email: aviation.fleetsupport@ge.com.
Victor Wicklund,
You may view this service information
(f) Compliance Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
at the FAA, Engine & Propeller
Comply with this AD within the Directorate, 12 New England Executive
[FR Doc. 2015–10068 Filed 4–30–15; 8:45 am]
compliance times specified, unless already Park, Burlington, MA. For information
done. BILLING CODE 4910–13–P
on the availability of this material at the
(g) Replacement FAA, call 781–238–7125.
Within 60 months after the effective date DEPARTMENT OF TRANSPORTATION Examining the AD Docket
of this AD: Replace the wire bundles inside
the electrical conduit of the forward and aft Federal Aviation Administration You may examine the AD docket on
boost pumps of the numbers 1 and 4 main the Internet at http://
fuel tanks with new, improved wire bundles 14 CFR Part 39 www.regulations.gov by searching for
inserted into conduit liners, in accordance and locating Docket No. FAA–2008–
with the Accomplishment Instructions of [Docket No. FAA–2008–0808; Directorate 0808; or in person at the Docket
Boeing Alert Service Bulletin 747–28A2306, Identifier 2008–NE–18–AD] Management Facility between 9 a.m.
dated October 2, 2014. Accomplishing the RIN 2120–AA64 and 5 p.m., Monday through Friday,
replacement required by this paragraph except Federal holidays. The AD docket
terminates the repetitive inspections required Airworthiness Directives; General
by paragraph (n) of AD 2011–15–03,
contains this proposed AD, the
Amendment 39–16750 (76 FR 41659, July 15,
Electric Company CT58 Turboshaft regulatory evaluation, any comments
2011). Engines received, and other information. The
AGENCY: Federal Aviation street address for the Docket Office
(h) Alternative Methods of Compliance (phone: 800–647–5527) is in the
(AMOCs) Administration (FAA), DOT.
ADDRESSES section. Comments will be
(1) The Manager, Seattle Aircraft ACTION: Notice of proposed rulemaking
available in the AD docket shortly after
Certification Office (ACO), FAA, has the (NPRM).
receipt.
authority to approve AMOCs for this AD, if
requested using the procedures found in 14 SUMMARY: We propose to supersede FOR FURTHER INFORMATION CONTACT:
CFR 39.19. In accordance with 14 CFR 39.19, airworthiness directives (ADs) 2001–18– Sanjana Murthy, Aerospace Engineer,
send your request to your principal inspector 06 and 2008–22–16, which apply to Engine Certification Office, FAA, Engine
or local Flight Standards District Office, as certain General Electric Company (GE) & Propeller Directorate, 12 New England
appropriate. If sending information directly CT58 turboshaft engines. ADs 2001–18– Executive Park, Burlington, MA 01803;
to the manager of the ACO, send it to the 06 and 2008–22–16 require phone: 781–238–7750; fax: 781–238–
attention of the person identified in recalculating the lives of life-limited 7199; email: sanjana.murthy@faa.gov.
paragraph (i)(1) of this AD. Information may
rotating parts using a Repetitive Heavy- SUPPLEMENTARY INFORMATION:
be emailed to: 9-ANM-Seattle-ACO-AMOC-
Requests@faa.gov. Lift (RHL) multiplying factor and
removal from service of parts that Comments Invited
(2) Before using any approved AMOC,
notify your appropriate principal inspector, exceed the recalculated cyclic or hourly We invite you to send any written
or lacking a principal inspector, the manager life limit. This proposed AD would relevant data, views, or arguments about
of the local flight standards district office/ consolidate ADs 2001–18–06 and 2008– this proposed AD. Send your comments
certificate holding district office. 22–16, and further reduce the life to an address listed under the
(3) An AMOC that provides an acceptable capability of certain parts. We are ADDRESSES section. Include ‘‘Docket No.
level of safety may be used for any repair proposing this AD to prevent failure of
required by this AD if it is approved by the
FAA–2008–0808; Directorate Identifier
life-limited rotating parts, uncontained 2008–NE–18–AD’’ at the beginning of
Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has part release, damage to the engine, and your comments. We specifically invite
been authorized by the Manager, Seattle damage to the aircraft. comments on the overall regulatory,
ACO, to make those findings. For a repair DATES: We must receive comments on economic, environmental, and energy
mstockstill on DSK4VPTVN1PROD with PROPOSALS
method to be approved, the repair must meet this proposed AD by June 30, 2015. aspects of this proposed AD. We will
the certification basis of the airplane, and the ADDRESSES: You may send comments, consider all comments received by the
approval must specifically refer to this AD. using the procedures found in 14 CFR closing date and may amend this
(i) Related Information 11.43 and 11.45, by any of the following proposed AD because of those
(1) For more information about this AD, methods: comments.
contact Tung Tran, Aerospace Engineer, • Federal eRulemaking Portal: Go to We will post all comments we
Propulsion Branch, ANM–140S, FAA, Seattle http://www.regulations.gov. Follow the receive, without change, to http://
Aircraft Certification Office, 1601 Lind instructions for submitting comments. www.regulations.gov, including any
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![Federal Register / Vol. 80, No. 84 / Friday, May 1, 2015 / Proposed Rules 24853
personal information you provide. We imposition of a new lifing methodology, List of Subjects in 14 CFR Part 39
will also post a report summarizing each increase the life consumption of all
Air transportation, Aircraft, Aviation
substantive verbal contact we receive rotating parts used in Utility operations.
safety, Incorporation by reference,
about this proposed AD.
Costs of Compliance Safety.
Discussion
We estimate that this proposed AD The Proposed Amendment
On August 24, 2001, we issued AD would affect about 60 engines installed
2001–18–06, Amendment 39–12432 (66 Accordingly, under the authority
on aircraft of U.S. registry. The average delegated to me by the Administrator,
FR 47575, September 13, 2001), (‘‘AD pro-rated cost of the life-limited rotating
2001–18–06’’), and on October 20, 2008, the FAA proposes to amend 14 CFR part
parts is $20,000. The average labor rate 39 as follows:
we issued AD 2008–22–16, Amendment is $85 per hour. Based on these figures,
39–15712 (73 FR 63629, October 27, we estimate the cost of the proposed AD
2008), (‘‘AD 2008–22–16’’), for CT58 PART 39—AIRWORTHINESS
on U.S. operators to be $8,715,000. DIRECTIVES
turboshaft engines. AD 2001–18–06
requires the use of an RHL multiplying Authority for This Rulemaking
■ 1. The authority citation for part 39
factor in calculating the lives of life-
Title 49 of the United States Code continues to read as follows:
limited rotating parts used in RHL
specifies the FAA’s authority to issue Authority: 49 U.S.C. 106(g), 40113, 44701.
missions. AD 2008–22–16 addressed a
rules on aviation safety. Subtitle I,
shortfall in the life capability of § 39.13 [Amended]
Section 106, describes the authority of
compressor spools used in RHL
the FAA Administrator. Subtitle VII, ■ 2. The FAA amends § 39.13 by:
operations. We issued ADs 2001–18–06
Aviation Programs, describes in more ■ a. Removing airworthiness directives
and 2008–22–16 to prevent cracks in
detail the scope of the Agency’s (AD) 2001–18–06; Amendment 39–
rotating parts that could result in an
authority. 12432 (66 FR 47575, September 13,
uncontained engine failure, damage to
the engine, and damage to the aircraft. We are issuing this rulemaking under 2001); and AD 2008–22–16,
the authority described in Subtitle VII, Amendment 39–15712 (73 FR 63629,
Actions Since ADs 2001–18–06 and Part A, Subpart III, Section 44701, October 27, 2008), and
2008–22–16 Were Issued ‘‘General requirements.’’ Under that ■ b. Adding the following new AD:
Since we issued ADs 2001–18–06 and section, Congress charges the FAA with
General Electric Company: Docket No. FAA–
2008–22–16, GE updated the life limits promoting safe flight of civil aircraft in
2008–0808; Directorate Identifier 2008–
of compressor spools. GE also updated air commerce by prescribing regulations NE–18–AD.
how to calculate the life consumption of for practices, methods, and procedures
compressor spools and of life-limited the Administrator finds necessary for (a) Comments Due Date
rotating parts flown in Utility safety in air commerce. This regulation The FAA must receive comments on this
operations. This update resulted in is within the scope of that authority AD action by June 30, 2015.
generally reduced lives for compressor because it addresses an unsafe condition (b) Affected ADs
spools and all other life-limited parts that is likely to exist or develop on
This AD replaces AD 2001–18–06,
used in Utility operations. GE published products identified in this rulemaking Amendment 39–12432 (66 FR 47575,
their updated life calculations for all action. September 13, 2001) and AD 2008–22–16,
life-limited parts in GE Alert Service Amendment 39–15712 (73 FR 63629, October
Regulatory Findings
Bulletin (ASB) No. CT58 S/B 72–A0162, 27, 2008.
Revision 16, dated January 7, 2015. We have determined that this (c) Applicability
Relevant Service Information Under 1 proposed AD would not have federalism
This AD applies to all General Electric
CFR Part 51 implications under Executive Order Company (GE) CT58–100–2, CT58–110–1,
13132. This proposed AD would not CT58–110–2, CT58–140–1, and CT58–140–2
We reviewed GE ASB No. CT58 S/B have a substantial direct effect on the turboshaft engines.
72–A0162, Revision 16, dated January 7, States, on the relationship between the
2015. The service information describes (d) Unsafe Condition
national Government and the States, or
procedures for calculating life limits for on the distribution of power and This AD was prompted by recalculation of
the affected life-limited rotating parts. responsibilities among the various life for parts installed on engines used in
This service information is reasonably Utility operations, and a reduced life for
levels of government.
available because the interested parties compressor spools in all operations. We are
have access to it through their normal For the reasons discussed above, I issuing this AD to prevent failure of life-
course of business or see ADDRESSES for certify that the proposed regulation: limited rotating parts, uncontained part
(1) Is not a ‘‘significant regulatory release, damage to the engine, and damage to
other ways to access this service the aircraft.
information. action’’ under Executive Order 12866,
(2) Is not a ‘‘significant rule’’ under (e) Compliance
FAA’s Determination
the DOT Regulatory Policies and Do the actions required by this AD, unless
We are proposing this AD because we Procedures (44 FR 11034, February 26, already done.
evaluated all the relevant information 1979), (1) Calculating Cyclic Life Consumption
mstockstill on DSK4VPTVN1PROD with PROPOSALS
and determined the unsafe condition
described previously is likely to exist or (3) Will not affect intrastate aviation Re-calculate the cycles-since-new for all
develop in other products of the same in Alaska to the extent that it justifies compressor spools, and for life-limited
making a regulatory distinction, and rotating parts other than compressor spools
type design. used in Utility operations. Use paragraphs
(4) Will not have a significant 3.A.(1) and 3.B.(1) in the Accomplishment
Proposed AD Requirements economic impact, positive or negative, Instructions of GE Alert Service Bulletin
This proposed AD would reduce the on a substantial number of small entities (ASB) No. CT58 S/B 72–A0162, Revision 16,
life limits of certain compressor spools under the criteria of the Regulatory dated January 7, 2015, to perform the
used in all operations and, through Flexibility Act. calculations.
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(2) Removal of Compressor Spools Issued in Burlington, Massachusetts, on SupportPC12@pilatus-aircraft.com;
After the effective date of this AD, remove April 17, 2015. Internet: http://www.pilatus-
compressor spools, part numbers (P/Ns) Thomas A. Boudreau, aircraft.com. You may review this
5124T94G02, 6010T57G04, 6010T57G07, and Acting Manager, Engine & Propeller referenced service information at the
6010T57G08 from service, before reaching Directorate, Aircraft Certification Service. FAA, Small Airplane Directorate, 901
the life limits specified in paragraph 4.(1), [FR Doc. 2015–09932 Filed 4–30–15; 8:45 am] Locust, Kansas City, Missouri 64106.
Appendix A, in GE ASB No. CT58 S/B 72– BILLING CODE 4910–13–P For information on the availability of
A0162, Revision 16, dated January 7, 2015, this material at the FAA, call (816) 329–
as re-calculated per paragraph (e)(1) in this 4148.
AD. DEPARTMENT OF TRANSPORTATION
Examining the AD Docket
(3) Removal of Rotating Parts Used in Utility
Operations Other Than Compressor Spools Federal Aviation Administration You may examine the AD docket on
After the effective date of this AD, remove
the Internet at http://
from service any life-limited rotating part 14 CFR Part 39 www.regulations.gov by searching for
used in Utility operations other than the and locating Docket No. FAA–2015–
[Docket No. FAA–2015–1177; Directorate
compressor spools with P/Ns listed in Identifier 2015–CE–009–AD] 1177; or in person at the Docket
paragraph (e)(2) of this AD that exceeds its Management Facility between 9 a.m.
life limit, as re-calculated per paragraph RIN 2120–AA64 and 5 p.m., Monday through Friday,
(e)(1) in this AD. Use Tables I, II, III, and IV except Federal holidays. The AD docket
in paragraphs 3.D. through 3.G. in the Airworthiness Directives; Pilatus contains this proposed AD, the
Accomplishment Instructions in GE ASB No. Aircraft LTD. Airplanes regulatory evaluation, any comments
CT58 S/B 72–A0162, Revision 16, dated AGENCY: Federal Aviation received, and other information. The
January 7, 2015, and paragraph 4.(4), street address for the Docket Office
Administration (FAA), Department of
Appendix A, of this GE ASB, to determine (telephone (800) 647–5527) is in the
when to remove these parts. Transportation (DOT).
ADDRESSES section. Comments will be
ACTION: Notice of proposed rulemaking
(4) Removal of Rotating Parts Not Used in available in the AD docket shortly after
(NPRM).
Utility Operations Other Than Compressor receipt.
Spools SUMMARY: We propose to adopt a new FOR FURTHER INFORMATION CONTACT:
After the effective date of this AD, remove airworthiness directive (AD) for Pilatus Doug Rudolph, Aerospace Engineer,
from service any life-limited rotating part not Aircraft Ltd. Model PC–12/47 and PC– FAA, Small Airplane Directorate, 901
used in Utility operations other than the 12/47E airplanes. This proposed AD Locust, Room 301, Kansas City,
compressor spools with P/Ns listed in results from mandatory continuing Missouri 64106; telephone: (816) 329–
paragraph (e)(2) of this AD that exceeds its airworthiness information (MCAI) 4059; fax: (816) 329–4090; email:
life limits. Use Tables I, II, III, and IV in originated by an aviation authority of doug.rudolph@faa.gov.
paragraphs 3.D. through 3.G. in the
another country to identify and correct SUPPLEMENTARY INFORMATION:
Accomplishment Instructions in GE ASB No.
CT58 S/B 72–A0162, Revision 16, dated an unsafe condition on an aviation Comments Invited
January 7, 2015, and paragraph 4.(3), product. The MCAI describes the unsafe
condition as the aileron trim tab We invite you to send any written
Appendix A of this GE ASB to determine
disconnecting above 10,000 feet relevant data, views, or arguments about
when to remove these parts.
altitude. We are issuing this proposed this proposed AD. Send your comments
(f) Alternative Methods of Compliance AD to require actions to address the to an address listed under the
(AMOCs) ADDRESSES section. Include ‘‘Docket No.
unsafe condition on these products.
The Manager, Engine Certification Office, FAA–2015–1177; Directorate Identifier
DATES: We must receive comments on
FAA, may approve AMOCs for this AD. Use 2015–CE–009–AD’’ at the beginning of
this proposed AD by June 15, 2015.
the procedures found in 14 CFR 39.19 to your comments. We specifically invite
make your request. You may email your ADDRESSES: You may send comments by comments on the overall regulatory,
request to: ANE–AD–AMOC@faa.gov. any of the following methods: economic, environmental, and energy
• Federal eRulemaking Portal: Go to aspects of this proposed AD. We will
(g) Related Information
http://www.regulations.gov. Follow the consider all comments received by the
(1) For more information about this AD, instructions for submitting comments.
contact Sanjana Murthy, Aerospace Engineer, closing date and may amend this
• Fax: (202) 493–2251. proposed AD because of those
Engine Certification Office, FAA, Engine &
• Mail: U.S. Department of comments.
Propeller Directorate, 12 New England
Executive Park, Burlington, MA 01803; Transportation, Docket Operations, M– We will post all comments we
phone: 781–238–7750; fax: 781–238–7199; 30, West Building Ground Floor, Room receive, without change, to http://
email: sanjana.murthy@faa.gov. W12–140, 1200 New Jersey Avenue SE, regulations.gov, including any personal
(2) GE ASB No. CT58 S/B 72–A0162, Washington, DC 20590. information you provide. We will also
Revision 16, dated January 7, 2015, can be • Hand Delivery: U.S. Department of post a report summarizing each
obtained from GE using the contact Transportation, Docket Operations, M– substantive verbal contact we receive
information in paragraph (g)(3) of this 30, West Building Ground Floor, Room about this proposed AD.
proposed AD. W12–140, 1200 New Jersey Avenue SE.,
(3) For service information identified in Washington, DC 20590, between 9 a.m. Discussion
mstockstill on DSK4VPTVN1PROD with PROPOSALS
this AD, contact General Electric Company, and 5 p.m., Monday through Friday, The European Aviation Safety Agency
GE Aviation, Room 285, One Neumann Way,
except Federal holidays. (EASA), which is the Technical Agent
Cincinnati, OH 45215; phone: 513–552–3272;
email: aviation.fleetsupport@ge.com.
For service information identified in for the Member States of the European
(4) You may view this service information this proposed AD, contact Pilatus Community, has issued AD No.: 2015–
at the FAA, Engine & Propeller Directorate, Aircraft Ltd, Customer Support 0060, dated April 10, 2015 (referred to
12 New England Executive Park, Burlington, Manager, CH–6371 STANS, after this as ‘‘the MCAI’’), to correct an
MA. For information on the availability of Switzerland; phone: +41 (0)41 619 33 unsafe condition for the specified
this material at the FAA, call 781–238–7125. 33; fax: +41 (0)41 619 73 11; email: products. The MCAI states:
VerDate Sep<11>2014 16:34 Apr 30, 2015 Jkt 235001 PO 00000 Frm 00017 Fmt 4702 Sfmt 4702 E:\FR\FM\01MYP1.SGM 01MYP1](https://thefederalregister.org/doc/80_FR_24936/page/3.svg)
Document Created: 2018-02-21 10:21:00
Document Modified: 2018-02-21 10:21:00
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by June 30, 2015. | |
| Contact | Sanjana Murthy, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7750; fax: 781-238-7199; email: [email protected] | |
| FR Citation | 80 FR 24852 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft and Aviation Safety |
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