Airworthiness Directives; General Electric Company Turbofan Engines, 42261-42263 [2017-19018]

Download as PDF 42261 Proposed Rules Federal Register Vol. 82, No. 172 Thursday, September 7, 2017 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2017–0792; Product Identifier 2017–NE–28–AD] RIN 2120–AA64 Airworthiness Directives; General Electric Company Turbofan 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) CF6– 80A, CF6–80A1, CF6–80A2, CF6–80A3, CF6–80C2A1, CF6–80C2A2, CF6– 80C2A3, CF6–80C2A5, CF6–80C2A5F, CF6–80C2A8, CF6–80C2B1, CF6– 80C2B1F, CF6–80C2B1F1, CF6– 80C2B1F2, CF6–80C2B2, CF6–80C2B2F, CF6–80C2B3F, CF6–80C2B4, CF6– 80C2B4F, CF6–80C2B5F, CF6–80C2B6, CF6–80C2B6F, CF6–80C2B6FA, CF6– 80C2B7F, CF6–80C2B8F, CF6– 80C2D1F, CF6–80C2L1F, and CF6– 80C2K1F turbofan engines. This proposed AD was prompted by an uncontained failure of a high-pressure turbine (HPT) stage 2 disk. This proposed AD would require ultrasonic inspection (UI) of HPT stage 1 and 2 disks. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by October 23, 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 http://www.regulations.gov. Follow the instructions for submitting comments. pmangrum on DSK3GDR082PROD with PROPOSALS SUMMARY: VerDate Sep<11>2014 15:40 Sep 06, 2017 Jkt 241001 • 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; email: aviation.fleetsupport@ge.com. You may view this service information at the FAA, Engine and Propeller Standards Branch, 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 http:// www.regulations.gov by searching for and locating Docket No. FAA–2017– 0792; 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: Herman Mak, Aerospace Engineer, FAA, ECO Branch, Compliance and Airworthiness Division, 1200 District Ave., Burlington, MA 01803; phone: 781–238–7147; fax: 781–238–7199; email: herman.mak@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– 2017–0792; Product Identifier 2017– NE–28–AD’’ at the beginning of your comments. We specifically invite PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 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 http:// 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 became aware of an unsafe condition from an uncontained failure of an HPT stage 2 disk that resulted in a fire. This unsafe condition was also determined to exist on some HPT stage 1 disks. This condition, if not corrected, could result in uncontained HPT disk release, damage to the engine, and damage to the airplane. Related Service Information Under 1 CFR Part 51 We reviewed GE Service Bulletin (SB) CF6–80C2 S/B 72–1562, Revision 01, dated July 28, 2017. The SB describes procedures for UI of HPT stage 1 and 2 disks. 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. 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 require UI of HPT stage 1 and 2 disks. Costs of Compliance We estimate that this proposed AD affects 640 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: E:\FR\FM\07SEP1.SGM 07SEP1 42262 Federal Register / Vol. 82, No. 172 / Thursday, September 7, 2017 / Proposed Rules ESTIMATED COSTS Action Labor cost UI of HPT disk ................................................ 10 work-hours × $85 per hour = $850 ........... 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. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. (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 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– 2017–0792; Product Identifier 2017–NE– 28–AD. (a) Comments Due Date We must receive comments by October 23, 2017. (b) Affected ADs None. pmangrum on DSK3GDR082PROD with PROPOSALS Regulatory Findings (c) Applicability 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, and This AD applies to General Electric Company (GE) CF6–80A, CF6–80A1, CF6– 80A2, CF6–80A3, CF6–80C2A1, CF6– 80C2A2, CF6–80C2A3, CF6–80C2A5, CF6– 80C2A5F, CF6–80C2A8, CF6–80C2B1, CF6– 80C2B1F, CF6–80C2B1F1, CF6–80C2B1F2, CF6–80C2B2, CF6–80C2B2F, CF6–80C2B3F, CF6–80C2B4, CF6–80C2B4F, CF6–80C2B5F, CF6–80C2B6, CF6–80C2B6F, CF6– 80C2B6FA, CF6–80C2B7F, CF6–80C2B8F, CF6–80C2D1F, CF6–80C2L1F, and CF6– 80C2K1F turbofan engines with highpressure turbine (HPT) disks with part numbers and serial numbers listed in Table 1 and 2 of Appendix A in GE Service Bulletin (SB) CF6–80C2 S/B 72–1562, Revision 01, dated July 28, 2017. VerDate Sep<11>2014 15:40 Sep 06, 2017 Jkt 241001 (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine/Turboprop Engine— Turbine Section. PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 Cost per product Parts cost $0 $850 Cost on U.S. operators $544,000 (e) Unsafe Condition This AD was prompted by an uncontained failure of a HPT stage 2 disk. We are issuing this AD to prevent failure of the HPT disks. The unsafe condition, if not corrected, could result in an uncontained HPT disk release, 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 Actions After the effective date of this AD, perform an ultrasonic inspection for cracks in stage 1 and stage 2 HPT disk at each piece-part level exposure in accordance with the Accomplishment Instructions, paragraph 3.A.(2) of GE SB CF6–80C2 S/B 72–1562, Revision 01, dated July 28, 2017. (h) Definition For the purpose of this AD, ‘‘piece-part exposure’’ of the stage 1 or 2 disk is removal of that disk from the engine and removal of all blades from that disk. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, FAA, ECO Branch, Compliance and Airworthiness Division, 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 ECO Branch, send it to the attention of the person identified in paragraph (j)(1) 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. (j) Related Information (1) For more information about this AD, contact Herman Mak, Aerospace Engineer, Aerospace Engineer, FAA, ECO Branch, Compliance and Airworthiness Division, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7147; fax: 781–238–7199; email: herman.mak@faa.gov. (2) For service information identified in this AD, contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513–552–3272; email: aviation.fleetsupport@ge.com. (3) You may view this referenced service information at the FAA, Engine and Propeller Standards Branch, Policy and Innovation Division, 1200 District Avenue, Burlington, MA 01803. For information on the E:\FR\FM\07SEP1.SGM 07SEP1 Federal Register / Vol. 82, No. 172 / Thursday, September 7, 2017 / Proposed Rules availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on September 1, 2017. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2017–19018 Filed 9–6–17; 8:45 am] BILLING CODE 4910–13–P FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 27 [WT Docket No. 06–150, DA 17–810] In the Matter of Service Rules for the 698–746, 747–762, and 777–792 MHz Bands Federal Communications Commission. ACTION: Proposed rule. AGENCY: In this document, the Federal Communications Commission explains the overall rules and policies for the relicensing of 700 MHz spectrum that is returned to the Commission’s inventory as a result of licensees’ failure to meet applicable construction requirements, as set forth by the Commission in the 700 MHz Second Report and Order (WT Docket No. 06–150, FCC 07–132). The document seeks comment on the Wireless Telecommunications Bureau’s proposed approach for implementing the various rules and policies of the relicensing process. DATES: Interested parties may file comments on or before October 10, 2017, and reply comments on or before November 6, 2017. ADDRESSES: You may submit comments, identified by WT Docket No. 06–150, by any of the following methods: • Electronic Filers: Comments may be filed electronically using the Internet by accessing the Commission’s Electronic Comment Filing System (ECFS): http:// fjallfoss.fcc.gov/ecfs2/. See Electronic Filing of Documents in Rulemaking Proceedings, 63 FR 24121 (1998). • Paper Filers: Parties who choose to file by paper must file an original and one copy of each filing. Generally if more than one docket or rulemaking number appears in the caption of this proceeding, filers must submit two additional copies for each additional docket or rulemaking number. Commenters are only required to file copies in GN Docket No. 13–111. • Filings can be sent by hand or messenger delivery, by commercial overnight courier, or by first-class or overnight U.S. Postal Service mail. All pmangrum on DSK3GDR082PROD with PROPOSALS SUMMARY: VerDate Sep<11>2014 15:40 Sep 06, 2017 Jkt 241001 filings must be addressed to the Commission’s Secretary, Office of the Secretary, Federal Communications Commission. Æ All hand-delivered or messengerdelivered paper filings for the Commission’s Secretary must be delivered to FCC Headquarters at 445 12th St. SW., Room TW–A325, Washington, DC 20554. The filing hours are 8:00 a.m. to 7:00 p.m. All hand deliveries must be held together with rubber bands or fasteners. Any envelopes and boxes must be disposed of before entering the building. Æ Commercial overnight mail (other than U.S. Postal Service Express Mail and Priority Mail) must be sent to 9300 East Hampton Drive, Capitol Heights, MD 20743. Æ U.S. Postal Service first-class, Express, and Priority mail must be addressed to 445 12th Street SW., Washington, DC 20554. People with Disabilities: To request materials in accessible formats for people with disabilities (Braille, large print, electronic files, audio format), send an email to fcc504@fcc.gov or call the Consumer & Governmental Affairs Bureau at 202–418–0530 (voice), 202– 418–0432 (TTY). FOR FURTHER INFORMATON CONTACT: Anna Gentry, Anna.Gentry@fcc.gov, of the Wireless Telecommunications Bureau, Mobility Division, (202) 418– 2887. For additional information concerning the PRA information collection requirements contained in this document, contact Cathy Williams at (202) 418–2918 or send an email to PRA@fcc.gov. SUPPLEMENTARY INFORMATION: This is a summary of the Commission’s document in WT Docket No. 06–150, DA 17–810, released on August 28, 2017. The complete text of the Public Notice is available for viewing via the Commission’s ECFS Web site by entering the docket number, WT Docket No. 06–150. The complete text of the documents also available for public inspection and copying from 8:00 a.m. to 4:30 p.m. Eastern Time (ET) Monday through Thursday or from 8:00 a.m. to 11:30 a.m. ET on Fridays in the FCC Reference Information Center, 445 12th Street SW., Room CY–B402, Washington, DC 20554, telephone 202– 488–5300, fax 202–488–5563. This proceeding shall continue to be treated as a ‘‘permit-but-disclose’’ proceeding in accordance with the Commission’s ex parte rules (47 CFR 1.1200 et seq.). Persons making ex parte presentations must file a copy of any written presentation or a memorandum summarizing any oral presentation PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 42263 within two business days after the presentation (unless a different deadline applicable to the Sunshine period applies). Persons making oral ex parte presentations are reminded that memoranda summarizing the presentation must (1) list all persons attending or otherwise participating in the meeting at which the ex parte presentation was made, and (2) summarize all data presented and arguments made during the presentation. If the presentation consisted in whole or in part of the presentation of data or arguments already reflected in the presenter’s written comments, memoranda or other filings in the proceeding, the presenter may provide citations to such data or arguments in his or her prior comments, memoranda, or other filings (specifying the relevant page and/or paragraph numbers where such data or arguments can be found) in lieu of summarizing them in the memorandum. Documents shown or given to Commission staff during ex parte meetings are deemed to be written ex parte presentations and must be filed consistent with rule 1.1206(b). In proceedings governed by rule 1.49(f) or for which the Commission has made available a method of electronic filing, written ex parte presentations and memoranda summarizing oral ex parte presentations, and all attachments thereto, must be filed through the electronic comment filing system available for that proceeding, and must be filed in their native format (e.g., .doc, .xml, .ppt, searchable .pdf). Participants in this proceeding should familiarize themselves with the Commission’s ex parte rules. I. Synopsis In the 2007 700 MHz Second Report and Order,1 the Commission adopted rules for relicensing of 700 MHz Lower A, B, and E Block, and Upper C Block spectrum that is returned to the Commission’s inventory as a result of licensees’ failure to meet applicable construction requirements. The Commission set forth the overall rules and policies for the relicensing process and delegated authority to the Wireless Telecommunications Bureau (Bureau) to implement those rules and policies. To the extent the 700 MHz Second Report and Order and other Commission rules set forth elements of the relicensing process, the document cites to those rules, and otherwise seeks comment on 1 Service Rules for 698–746, 747–762, and 777– 792 MHz Bands et al., Second Report and Order, 22 FCC Rcd 15289 (2007) (700 MHz Second Report and Order). E:\FR\FM\07SEP1.SGM 07SEP1

Agencies

[Federal Register Volume 82, Number 172 (Thursday, September 7, 2017)]
[Proposed Rules]
[Pages 42261-42263]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-19018]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 82, No. 172 / Thursday, September 7, 2017 / 
Proposed Rules

[[Page 42261]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0792; Product Identifier 2017-NE-28-AD]
RIN 2120-AA64


Airworthiness Directives; General Electric Company Turbofan 
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) CF6-80A, CF6-80A1, CF6-80A2, CF6-
80A3, CF6-80C2A1, CF6-80C2A2, CF6-80C2A3, CF6-80C2A5, CF6-80C2A5F, CF6-
80C2A8, CF6-80C2B1, CF6-80C2B1F, CF6-80C2B1F1, CF6-80C2B1F2, CF6-
80C2B2, CF6-80C2B2F, CF6-80C2B3F, CF6-80C2B4, CF6-80C2B4F, CF6-80C2B5F, 
CF6-80C2B6, CF6-80C2B6F, CF6-80C2B6FA, CF6-80C2B7F, CF6-80C2B8F, CF6-
80C2D1F, CF6-80C2L1F, and CF6-80C2K1F turbofan engines. This proposed 
AD was prompted by an uncontained failure of a high-pressure turbine 
(HPT) stage 2 disk. This proposed AD would require ultrasonic 
inspection (UI) of HPT stage 1 and 2 disks. We are proposing this AD to 
address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by October 23, 
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 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 NPRM, contact General 
Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 
45215; phone: 513-552-3272; email: aviation.fleetsupport@ge.com. You 
may view this service information at the FAA, Engine and Propeller 
Standards Branch, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0792; 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: Herman Mak, Aerospace Engineer, FAA, 
ECO Branch, Compliance and Airworthiness Division, 1200 District Ave., 
Burlington, MA 01803; phone: 781-238-7147; fax: 781-238-7199; email: 
herman.mak@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-2017-0792; 
Product Identifier 2017-NE-28-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 http://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 became aware of an unsafe condition from an uncontained failure 
of an HPT stage 2 disk that resulted in a fire. This unsafe condition 
was also determined to exist on some HPT stage 1 disks. This condition, 
if not corrected, could result in uncontained HPT disk release, damage 
to the engine, and damage to the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed GE Service Bulletin (SB) CF6-80C2 S/B 72-1562, Revision 
01, dated July 28, 2017. The SB describes procedures for UI of HPT 
stage 1 and 2 disks. 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.

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 require UI of HPT stage 1 and 2 disks.

Costs of Compliance

    We estimate that this proposed AD affects 640 engines installed on 
airplanes of U.S. registry.
    We estimate the following costs to comply with this proposed AD:

[[Page 42262]]



                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
UI of HPT disk........................  10 work-hours x $85 per               $0            $850        $544,000
                                         hour = $850.
----------------------------------------------------------------------------------------------------------------

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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to engines, propellers, and 
associated appliances to the Manager, Engine and Propeller Standards 
Branch, Policy and Innovation Division.

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, 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-2017-0792; Product 
Identifier 2017-NE-28-AD.

(a) Comments Due Date

    We must receive comments by October 23, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to General Electric Company (GE) CF6-80A, CF6-
80A1, CF6-80A2, CF6-80A3, CF6-80C2A1, CF6-80C2A2, CF6-80C2A3, CF6-
80C2A5, CF6-80C2A5F, CF6-80C2A8, CF6-80C2B1, CF6-80C2B1F, CF6-
80C2B1F1, CF6-80C2B1F2, CF6-80C2B2, CF6-80C2B2F, CF6-80C2B3F, CF6-
80C2B4, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6, CF6-80C2B6F, CF6-
80C2B6FA, CF6-80C2B7F, CF6-80C2B8F, CF6-80C2D1F, CF6-80C2L1F, and 
CF6-80C2K1F turbofan engines with high-pressure turbine (HPT) disks 
with part numbers and serial numbers listed in Table 1 and 2 of 
Appendix A in GE Service Bulletin (SB) CF6-80C2 S/B 72-1562, 
Revision 01, dated July 28, 2017.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7250, Turbine/
Turboprop Engine--Turbine Section.

(e) Unsafe Condition

    This AD was prompted by an uncontained failure of a HPT stage 2 
disk. We are issuing this AD to prevent failure of the HPT disks. 
The unsafe condition, if not corrected, could result in an 
uncontained HPT disk release, 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 Actions

    After the effective date of this AD, perform an ultrasonic 
inspection for cracks in stage 1 and stage 2 HPT disk at each piece-
part level exposure in accordance with the Accomplishment 
Instructions, paragraph 3.A.(2) of GE SB CF6-80C2 S/B 72-1562, 
Revision 01, dated July 28, 2017.

(h) Definition

    For the purpose of this AD, ``piece-part exposure'' of the stage 
1 or 2 disk is removal of that disk from the engine and removal of 
all blades from that disk.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, FAA, ECO Branch, Compliance and Airworthiness 
Division, 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 ECO Branch, send it to 
the attention of the person identified in paragraph (j)(1) 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.

(j) Related Information

    (1) For more information about this AD, contact Herman Mak, 
Aerospace Engineer, Aerospace Engineer, FAA, ECO Branch, Compliance 
and Airworthiness Division, 1200 District Avenue, Burlington, MA 
01803; phone: 781-238-7147; fax: 781-238-7199; email: 
herman.mak@faa.gov.
    (2) For service information identified in this AD, contact 
General Electric Company, GE Aviation, Room 285, 1 Neumann Way, 
Cincinnati, OH 45215; phone: 513-552-3272; email: 
aviation.fleetsupport@ge.com.
    (3) You may view this referenced service information at the FAA, 
Engine and Propeller Standards Branch, Policy and Innovation 
Division, 1200 District Avenue, Burlington, MA 01803. For 
information on the

[[Page 42263]]

availability of this material at the FAA, call 781-238-7125.

    Issued in Burlington, Massachusetts, on September 1, 2017.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
 [FR Doc. 2017-19018 Filed 9-6-17; 8:45 am]
BILLING CODE 4910-13-P