82_FR_26724 82 FR 26615 - Airworthiness Directives; General Electric Company Turbofan Engines

82 FR 26615 - Airworthiness Directives; General Electric Company Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 109 (June 8, 2017)

Page Range26615-26616
FR Document2017-11782

We propose to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF34-8E model turbofan engines. This proposed AD was prompted by a report that using a certain repair procedure for the fan outlet guide vane (OGV) frame could alter the strength capability of the fan OGV frame. This proposed AD would require replacement of all fan OGV frames repaired using this procedure. We are proposing this AD to correct the unsafe condition on these products.

Federal Register, Volume 82 Issue 109 (Thursday, June 8, 2017)
[Federal Register Volume 82, Number 109 (Thursday, June 8, 2017)]
[Proposed Rules]
[Pages 26615-26616]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-11782]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0254; Directorate Identifier 2017-NE-10-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 all 
General Electric Company (GE) CF34-8E model turbofan engines. This 
proposed AD was prompted by a report that using a certain repair 
procedure for the fan outlet guide vane (OGV) frame could alter the 
strength capability of the fan OGV frame. This proposed AD would 
require replacement of all fan OGV frames repaired using this 
procedure. We are proposing this AD to correct the unsafe condition on 
these products.

DATES: We must receive comments on this proposed AD by July 24, 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; fax: 513-552-3329; email: [email protected]. 
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 http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0254; 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: Martin Adler, Aerospace Engineer, 
Engine Certification Office, FAA, 1200 District Avenue, Burlington, MA 
01803; phone: 781-238-7157; 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 proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2017-0254; 
Directorate Identifier 2017-NE-10-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 personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We received a report that using a certain repair procedure for the 
fan OGV frame could alter the strength capability of the fan OGV frame 
because the repair procedure included an improper heat cycle. This 
proposed AD would require replacement of all fan OGV frames repaired 
using this procedure. This condition, if not corrected, could result in 
failure of the fan OGV frame, engine separation, and loss of the 
airplane.

Related Service Information

    We reviewed GE CF34-8E Engine Manual, GEK 112031, 72-00-23, REPAIR 
006. The repair describes procedures for applying a dry-film lubricant 
to the fan OGV frame with heat curing.

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 replacement of fan OGV frames.

Costs of Compliance

    We estimate that this proposed AD affects 42 engines installed on 
airplanes of U.S. registry.
    We estimate the following costs to comply with this proposed AD:

[[Page 26616]]



                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Fan OGV frame part--annual, prorated    0 work-hour x $85 per         $12,300.00      $12,300.00     $516,600.00
 cost.                                   hour = $0.00.
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this proposed 
AD may be covered under warranty, thereby reducing the cost impact on 
affected individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

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, 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-2017-0254; Directorate 
Identifier 2017-NE-10-AD.

(a) Comments Due Date

    We must receive comments by July 24, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all General Electric Company (GE) CF34-8E2; 
CF34-8E2A1; CF34-8E5; CF34-8E5A1; CF34-8E5A2; CF34-8E6; and CF34-
8E6A1 model turbofan engines.

(d) Subject

    Joint Aircraft System Component (JASC), 7270, Turbine Engine 
Bypass Section.

(e) Unsafe Condition

    This AD was prompted by a report that using a certain repair 
procedure for the fan outlet guide vane (OGV) frame could alter the 
strength capability of the fan OGV frame. We are issuing this AD to 
prevent failure of the fan OGV frame, engine separation, and loss of 
the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) For engines with a fan OGV frame installed that was repaired 
using GE CF34-8E Engine Manual, GEK 112031, 72-00-23, REPAIR 006:
    (i) If the fan OGV frame has 24,900 cycles since new (CSN) or 
more on the effective date of this AD, remove the OGV frame from 
service within 100 cycles after the effective date of this AD.
    (ii) If the OGV frame has less than 24,900 CSN on the effective 
date of this AD, remove the fan OGV frame from service at the next 
shop visit after the effective date of this AD, or before exceeding 
25,000 CSN, whichever occurs earlier.
    (2) After the effective date of this AD, do not install a fan 
OGV frame that was repaired using GE CF34-8E Engine Manual, GEK 
112031, 72-00-23, REPAIR 006.

(h) 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.

(i) 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].

(j) Related Information

    (1) For more information about this AD, contact Martin Adler, 
Aerospace Engineer, Engine Certification Office, FAA, 1200 District 
Avenue, Burlington, MA 01803; phone: 781-238-7157; fax: 781-238-
7199; email: [email protected].
    (2) GE CF34-8E Engine Manual, GEK 112031, 72-00-23, REPAIR 006 
can be obtained from GE using the contact information in paragraph 
(j)(3) of this AD.
    (3) 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; fax: 513-552-3329; email: 
[email protected].
    (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 May 25, 2017.
Carlos A. Pestana,
Acting Assistant Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2017-11782 Filed 6-7-17; 8:45 am]
 BILLING CODE 4910-13-P



                                                                               Federal Register / Vol. 82, No. 109 / Thursday, June 8, 2017 / Proposed Rules                                           26615

                                                         (b) The credit union must deliver the                We are proposing this AD to correct the                this proposal. Send your comments to
                                                      notice in person to each member, or                     unsafe condition on these products.                    an address listed under the ADDRESSES
                                                      mail it to each member at the address                   DATES: We must receive comments on                     section. Include ‘‘Docket No. FAA–
                                                      for the member as it appears on the                     this proposed AD by July 24, 2017.                     2017–0254; Directorate Identifier 2017–
                                                      records of the credit union, at least 45                ADDRESSES: You may send comments,                      NE–10–AD’’ at the beginning of your
                                                      days, but not more than 90 days, before                 using the procedures found in 14 CFR                   comments. We specifically invite
                                                      the date of the vote. Members must be                   11.43 and 11.45, by any of the following               comments on the overall regulatory,
                                                      permitted to vote by mail ballot. The                   methods:                                               economic, environmental, and energy
                                                      credit union may provide the notice of                    • Federal eRulemaking Portal: Go to                  aspects of this proposed AD. We will
                                                      the proposal and the ballot to members                  http://www.regulations.gov. Follow the                 consider all comments received by the
                                                      at the same time.                                       instructions for submitting comments.                  closing date and may amend this
                                                      *      *    *     *    *                                  • Fax: 202–493–2251.                                 proposed AD because of those
                                                      ■ 11. Revise § 708b.204(b) to read as                     • Mail: U.S. Department of                           comments.
                                                      follows:                                                Transportation, Docket Operations, M–                    We will post all comments we
                                                                                                              30, West Building Ground Floor, Room                   receive, without change, to http://
                                                      § 708b.204 Notice to members of proposal                W12–140, 1200 New Jersey Avenue SE.,
                                                      to convert insurance.                                                                                          www.regulations.gov, including any
                                                                                                              Washington, DC 20590.                                  personal information you provide. We
                                                      *      *    *     *    *                                  • Hand Delivery: Deliver to Mail
                                                         (b) The credit union must deliver the                                                                       will also post a report summarizing each
                                                                                                              address above between 9 a.m. and 5                     substantive verbal contact we receive
                                                      notice in person to each member, or                     p.m., Monday through Friday, except
                                                      mail it to each member at the address                                                                          about this proposed AD.
                                                                                                              Federal holidays.
                                                      for the member as it appears on the                       For service information identified in                Discussion
                                                      records of the credit union, at least 45                this NPRM, contact General Electric
                                                      days, but not more than 90 days, before                 Company, GE-Aviation, Room 285, 1                         We received a report that using a
                                                      the date of the vote. Members must be                   Neumann Way, Cincinnati, OH 45215,                     certain repair procedure for the fan OGV
                                                      permitted to vote by mail ballot. The                   phone: 513–552–3272; fax: 513–552–                     frame could alter the strength capability
                                                      credit union may provide the notice of                  3329; email: geae.aoc@ge.com. You may                  of the fan OGV frame because the repair
                                                      the proposal and the ballot to members                  view this service information at the                   procedure included an improper heat
                                                      at the same time.                                       FAA, Engine & Propeller Directorate,                   cycle. This proposed AD would require
                                                      *      *    *     *    *                                1200 District Avenue, Burlington, MA.                  replacement of all fan OGV frames
                                                                                                              For information on the availability of                 repaired using this procedure. This
                                                      [FR Doc. 2017–11331 Filed 6–7–17; 8:45 am]
                                                                                                              this material at the FAA, call 781–238–                condition, if not corrected, could result
                                                      BILLING CODE 7535–01–P
                                                                                                              7125.                                                  in failure of the fan OGV frame, engine
                                                                                                                                                                     separation, and loss of the airplane.
                                                                                                              Examining the AD Docket
                                                      DEPARTMENT OF TRANSPORTATION                                                                                   Related Service Information
                                                                                                                 You may examine the AD docket on
                                                      Federal Aviation Administration                         the Internet at http://                                  We reviewed GE CF34–8E Engine
                                                                                                              www.regulations.gov by searching for                   Manual, GEK 112031, 72–00–23,
                                                      14 CFR Part 39                                          and locating Docket No. FAA–2017–                      REPAIR 006. The repair describes
                                                                                                              0254; or in person at the Docket                       procedures for applying a dry-film
                                                      [Docket No. FAA–2017–0254; Directorate                  Management Facility between 9 a.m.                     lubricant to the fan OGV frame with
                                                      Identifier 2017–NE–10–AD]                               and 5 p.m., Monday through Friday,                     heat curing.
                                                      RIN 2120–AA64                                           except Federal holidays. The AD docket
                                                                                                              contains this proposed AD, the                         FAA’s Determination
                                                      Airworthiness Directives; General                       regulatory evaluation, any comments                      We are proposing this AD because we
                                                      Electric Company Turbofan Engines                       received, and other information. The                   evaluated all the relevant information
                                                      AGENCY: Federal Aviation                                street address for the Docket Office                   and determined the unsafe condition
                                                      Administration (FAA), DOT.                              (phone: 800–647–5527) is in the                        described previously is likely to exist or
                                                                                                              ADDRESSES section. Comments will be                    develop in other products of the same
                                                      ACTION: Notice of proposed rulemaking
                                                                                                              available in the AD docket shortly after               type design.
                                                      (NPRM).
                                                                                                              receipt.
                                                      SUMMARY:    We propose to adopt a new                   FOR FURTHER INFORMATION CONTACT:                       Proposed AD Requirements
                                                      airworthiness directive (AD) for all                    Martin Adler, Aerospace Engineer,                        This proposed AD would require
                                                      General Electric Company (GE) CF34–8E                   Engine Certification Office, FAA, 1200                 replacement of fan OGV frames.
                                                      model turbofan engines. This proposed                   District Avenue, Burlington, MA 01803;
                                                      AD was prompted by a report that using                  phone: 781–238–7157; fax: 781–238–                     Costs of Compliance
                                                      a certain repair procedure for the fan                  7199; email: martin.adler@faa.gov.
                                                      outlet guide vane (OGV) frame could                                                                               We estimate that this proposed AD
                                                                                                              SUPPLEMENTARY INFORMATION:
                                                      alter the strength capability of the fan                                                                       affects 42 engines installed on airplanes
asabaliauskas on DSKBBXCHB2PROD with PROPOSALS




                                                      OGV frame. This proposed AD would                       Comments Invited                                       of U.S. registry.
                                                      require replacement of all fan OGV                        We invite you to send any written                       We estimate the following costs to
                                                      frames repaired using this procedure.                   relevant data, views, or arguments about               comply with this proposed AD:




                                                 VerDate Sep<11>2014   16:21 Jun 07, 2017   Jkt 241001   PO 00000   Frm 00011   Fmt 4702   Sfmt 4702   E:\FR\FM\08JNP1.SGM   08JNP1


                                                      26616                    Federal Register / Vol. 82, No. 109 / Thursday, June 8, 2017 / Proposed Rules

                                                                                                                            ESTIMATED COSTS
                                                                                                                                                                                       Cost per        Cost on U.S.
                                                                            Action                                               Labor cost                         Parts cost         product          operators

                                                      Fan OGV frame part—annual, prorated cost               0 work-hour × $85 per hour = $0.00 ..............        $12,300.00        $12,300.00       $516,600.00



                                                        According to the manufacturer, some                   List of Subjects in 14 CFR Part 39                     of this AD, remove the OGV frame from
                                                      of the costs of this proposed AD may be                                                                        service within 100 cycles after the effective
                                                                                                                Air transportation, Aircraft, Aviation
                                                      covered under warranty, thereby                                                                                date of this AD.
                                                                                                              safety, Incorporation by reference,
                                                      reducing the cost impact on affected                                                                             (ii) If the OGV frame has less than 24,900
                                                                                                              Safety.                                                CSN on the effective date of this AD, remove
                                                      individuals. We do not control warranty
                                                      coverage for affected individuals. As a                 The Proposed Amendment                                 the fan OGV frame from service at the next
                                                      result, we have included all costs in our                                                                      shop visit after the effective date of this AD,
                                                                                                                Accordingly, under the authority
                                                      cost estimate.                                                                                                 or before exceeding 25,000 CSN, whichever
                                                                                                              delegated to me by the Administrator,
                                                                                                                                                                     occurs earlier.
                                                      Authority for This Rulemaking                           the FAA proposes to amend 14 CFR part                    (2) After the effective date of this AD, do
                                                                                                              39 as follows:                                         not install a fan OGV frame that was repaired
                                                         Title 49 of the United States Code
                                                      specifies the FAA’s authority to issue                  PART 39—AIRWORTHINESS                                  using GE CF34–8E Engine Manual, GEK
                                                      rules on aviation safety. Subtitle I,                                                                          112031, 72–00–23, REPAIR 006.
                                                                                                              DIRECTIVES
                                                      section 106, describes the authority of                                                                        (h) Definition
                                                      the FAA Administrator. Subtitle VII:                    ■ 1. The authority citation for part 39
                                                                                                                                                                        For the purpose of this AD, an ‘‘engine
                                                      Aviation Programs, describes in more                    continues to read as follows:
                                                                                                                                                                     shop visit’’ is the induction of an engine into
                                                      detail the scope of the Agency’s                            Authority: 49 U.S.C. 106(g), 40113, 44701.         the shop for maintenance involving the
                                                      authority.                                                                                                     separation of pairs of major mating engine
                                                         We are issuing this rulemaking under                 § 39.13    [Amended]
                                                                                                                                                                     flanges.
                                                      the authority described in Subtitle VII,                ■ 2. The FAA amends § 39.13 by adding
                                                      Part A, Subpart III, Section 44701:                     the following new airworthiness                        (i) Alternative Methods of Compliance
                                                      ‘‘General requirements.’’ Under that                    directive (AD):                                        (AMOCs)
                                                      section, Congress charges the FAA with                  General Electric Company: Docket No. FAA–                The Manager, Engine Certification Office,
                                                      promoting safe flight of civil aircraft in                 2017–0254; Directorate Identifier 2017–             FAA, may approve AMOCs for this AD. Use
                                                      air commerce by prescribing regulations                    NE–10–AD.                                           the procedures found in 14 CFR 39.19 to
                                                      for practices, methods, and procedures                                                                         make your request. You may email your
                                                                                                              (a) Comments Due Date
                                                      the Administrator finds necessary for                                                                          request to: ANE-AD-AMOC@faa.gov.
                                                      safety in air commerce. This regulation                   We must receive comments by July 24,
                                                                                                              2017.                                                  (j) Related Information
                                                      is within the scope of that authority
                                                      because it addresses an unsafe condition                (b) Affected ADs                                          (1) For more information about this AD,
                                                      that is likely to exist or develop on                                                                          contact Martin Adler, Aerospace Engineer,
                                                                                                                None.
                                                      products identified in this rulemaking                                                                         Engine Certification Office, FAA, 1200
                                                                                                              (c) Applicability                                      District Avenue, Burlington, MA 01803;
                                                      action.
                                                                                                                 This AD applies to all General Electric             phone: 781–238–7157; fax: 781–238–7199;
                                                      Regulatory Findings                                     Company (GE) CF34–8E2; CF34–8E2A1;                     email: martin.adler@faa.gov.
                                                                                                              CF34–8E5; CF34–8E5A1; CF34–8E5A2;                         (2) GE CF34–8E Engine Manual, GEK
                                                        We determined that this proposed AD
                                                                                                              CF34–8E6; and CF34–8E6A1 model turbofan                112031, 72–00–23, REPAIR 006 can be
                                                      would not have federalism implications                  engines.                                               obtained from GE using the contact
                                                      under Executive Order 13132. This
                                                                                                              (d) Subject                                            information in paragraph (j)(3) of this AD.
                                                      proposed AD would not have a
                                                                                                                                                                        (3) For service information identified in
                                                      substantial direct effect on the States, on               Joint Aircraft System Component (JASC),
                                                                                                              7270, Turbine Engine Bypass Section.                   this AD, contact General Electric Company,
                                                      the relationship between the national
                                                                                                                                                                     GE-Aviation, Room 285, 1 Neumann Way,
                                                      Government and the States, or on the                    (e) Unsafe Condition                                   Cincinnati, OH 45215, phone: 513–552–3272;
                                                      distribution of power and                                                                                      fax: 513–552–3329; email: geae.aoc@ge.com.
                                                                                                                 This AD was prompted by a report that
                                                      responsibilities among the various                      using a certain repair procedure for the fan              (4) You may view this service information
                                                      levels of government.                                   outlet guide vane (OGV) frame could alter the          at the FAA, Engine & Propeller Directorate,
                                                        For the reasons discussed above, I                    strength capability of the fan OGV frame. We           1200 District Avenue, Burlington, MA. For
                                                      certify this proposed regulation:                       are issuing this AD to prevent failure of the          information on the availability of this
                                                        (1) Is not a ‘‘significant regulatory                 fan OGV frame, engine separation, and loss             material at the FAA, call 781–238–7125.
                                                      action’’ under Executive Order 12866,                   of the airplane.
                                                                                                                                                                       Issued in Burlington, Massachusetts, on
                                                        (2) Is not a ‘‘significant rule’’ under               (f) Compliance
                                                                                                                                                                     May 25, 2017.
                                                      the DOT Regulatory Policies and
asabaliauskas on DSKBBXCHB2PROD with PROPOSALS




                                                                                                                 Comply with this AD within the
                                                      Procedures (44 FR 11034, February 26,                                                                          Carlos A. Pestana,
                                                                                                              compliance times specified, unless already
                                                      1979),                                                  done.                                                  Acting Assistant Manager, Engine & Propeller
                                                        (3) Will not affect intrastate aviation                                                                      Directorate, Aircraft Certification Service.
                                                                                                              (g) Required Actions
                                                      in Alaska, and                                                                                                 [FR Doc. 2017–11782 Filed 6–7–17; 8:45 am]
                                                                                                                 (1) For engines with a fan OGV frame
                                                        (4) Will not have a significant                       installed that was repaired using GE CF34–
                                                                                                                                                                     BILLING CODE 4910–13–P
                                                      economic impact, positive or negative,                  8E Engine Manual, GEK 112031, 72–00–23,
                                                      on a substantial number of small entities               REPAIR 006:
                                                      under the criteria of the Regulatory                       (i) If the fan OGV frame has 24,900 cycles
                                                      Flexibility Act.                                        since new (CSN) or more on the effective date



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Document Created: 2018-11-14 10:07:09
Document Modified: 2018-11-14 10:07:09
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by July 24, 2017.
ContactMartin Adler, Aerospace Engineer, Engine Certification Office, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7157; fax: 781-238-7199; email: [email protected]
FR Citation82 FR 26615 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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