83_FR_61760 83 FR 61529 - Airworthiness Directives; CFM International S.A. Turbofan Engines

83 FR 61529 - Airworthiness Directives; CFM International S.A. Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 231 (November 30, 2018)

Page Range61529-61531
FR Document2018-26026

We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) LEAP-1B21, LEAP-1B23, LEAP-1B25, LEAP-1B27, LEAP-1B28, LEAP-1B28B1, LEAP-1B28B2, LEAP-1B28B2C, LEAP-1B28B3, LEAP- 1B28BBJ1, and LEAP-1B28BBJ2 turbofan engines with a certain high- pressure turbine (HPT) stator case (HPT cases) installed. This AD requires removal of affected HPT cases from service and their replacement with a part eligible for installation. This AD was prompted by the discovery of a quality escape at a manufacturing facility involving unapproved welds on HPT cases. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 231 (Friday, November 30, 2018)
[Federal Register Volume 83, Number 231 (Friday, November 30, 2018)]
[Rules and Regulations]
[Pages 61529-61531]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-26026]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0869; Product Identifier 2018-NE-32-AD; Amendment 
39-19435; AD 2018-20-01]
RIN 2120-AA64


Airworthiness Directives; CFM International S.A. Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for all CFM 
International S.A. (CFM) LEAP-1B21, LEAP-1B23, LEAP-1B25, LEAP-1B27, 
LEAP-1B28, LEAP-1B28B1, LEAP-1B28B2, LEAP-1B28B2C, LEAP-1B28B3, LEAP-
1B28BBJ1, and LEAP-1B28BBJ2 turbofan engines with a certain high-
pressure turbine (HPT) stator case (HPT cases) installed. This AD 
requires removal of affected HPT cases from service and their 
replacement with a part eligible for installation. This AD was prompted 
by the discovery of a quality escape at a manufacturing facility 
involving unapproved welds on HPT cases. We are issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective December 17, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 17, 
2018.
    We must receive comments on this AD by January 14, 2019.

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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this final rule, contact CFM 
International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 
285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432-3329; 
email: [email protected]. You may view this service 
information at the FAA, Engine and Propeller Standards Branch, 1200 
District Avenue, Burlington, MA 01803. For information on the 
availability of this material at the FAA, call 781-238-7759. It is also 
available on the internet at http://www.regulations.gov by searching 
for and locating Docket No. FAA-2018-0869.

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-2018-
0869; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The street address for the Docket Operations (phone: 
800-647-5527) is listed above. Comments will be available in the AD 
docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Christopher McGuire, Aerospace 
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; 
phone: 781-238-7120; fax: 781-238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We learned from CFM of a quality escape at one of their suppliers, 
AECC Aero Science and Technology Co., Ltd., which was performing welds 
on newly-manufactured components to correct errors introduced in their 
manufacturing process. These welds were not reviewed or approved by 
either CFM or the FAA. CFM's review of manufacturing records determined 
that these parts include HPT cases installed on CFM LEAP-1B turbofan 
engines. These HPT cases are life limited. The unapproved repairs 
reduced the material capability of these cases which requires their 
removal prior to reaching their published Airworthiness Limitation 
Section life limit. This condition, if not addressed, could result in 
failure of the HPT case, engine fire, and damage to the airplane. We 
are issuing this AD to address the unsafe condition on these products.

Related Service Information Under 1 CFR Part 51

    We reviewed CFM Service Bulletin (SB) LEAP-1B-72-00-0193-01A-930A-
D, Issue 003, dated November 5, 2018. The SB describes procedures for 
removing the affected HPT cases from the engine. 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 issuing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

AD Requirements

    This AD requires removal of the affected HPT cases from service and 
their replacement with a part eligible for installation.

FAA's Justification and Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD without providing an opportunity for public comments prior to 
adoption. The FAA has found that the risk to the flying public 
justifies waiving notice and comment prior to the adoption of this rule 
because the compliance time for the required action is shorter than the 
time necessary for the public to comment and for us to publish the 
final rule. Certain HPTs cases must be removed within 200 cycles after 
the effective date of this AD to ensure they do not fail. Therefore, we 
find good cause that notice and opportunity for prior public comment 
are impracticable. In addition, for the reason stated above, we find 
that good cause exists for making this amendment effective in less than 
30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety and was not preceded by notice and an opportunity for public 
comment. However, we invite you to send any written data, views, or 
arguments about this final rule. Send your comments to an address 
listed under the ADDRESSES section. Include the docket number FAA-2018-
0869 and Product Identifier 2018-NE-32-AD at the beginning of your 
comments. We specifically invite comments on the overall regulatory,

[[Page 61530]]

economic, environmental, and energy aspects of this final rule. We will 
consider all comments received by the closing date and may amend this 
final rule 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 final rule.

Costs of Compliance

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

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on  U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Remove HPT case and FPI of forward      1000 work-hour x $85 per        $179,400        $264,400        $528,800
 flange.                                 hour = $85,000.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that would be required based on the results of the inspection. We have 
no way of determining the number of aircraft that might need this 
replacement:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Replace combustion case assembly..............  10 work-hours x $85 per hour =          $558,800        $559,650
                                                 $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

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2018-20-01 CFM International S.A.: Amendment 39-19435; Docket No. 
FAA-2018-0869; Product Identifier 2018-NE-32-AD.

(a) Effective Date

    This AD is effective December 17, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to CFM International S.A. (CFM) LEAP-1B21, LEAP-
1B23, LEAP-1B25, LEAP-1B27, LEAP-1B28, LEAP-1B28B1, LEAP-1B28B2, 
LEAP-1B28B2C, LEAP-1B28B3, LEAP-1B28BBJ1, and LEAP-1B28BBJ2 turbofan 
engines with a high-pressure turbine (HPT) stator case (HPT case), 
part number (P/N) 2541M81G01 installed, and with any HPT case serial 
number (S/N) listed in Table 1 or Table 2 of Planning Information, 
paragraph 3.A., of CFM Service Bulletin (SB) LEAP-1B-72-00-0193-01A-
930A-D, Issue 003, dated November 5, 2018.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7250, Turbine 
Section.

(e) Unsafe Condition

    This AD was prompted by the discovery of a quality escape at a 
manufacturing facility involving unapproved welds on HPT cases. We 
are issuing this AD to prevent failure of the HPT case. The unsafe 
condition, if not addressed, could result in engine fire and damage 
to the airplane.

[[Page 61531]]

(f) Compliance

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

(g) Required Actions

    (1) After the effective date of this AD, remove the affected HPT 
case from service no later than the number of cycles in service 
specified in Table 1 or Table 2 of Planning Information, paragraph 
3.A., of CFM SB LEAP-1B-72-00-0193-01A-930A-D, Issue 003, dated 
November 5, 2018.
    (2) After removing the HPT case as required in paragraph (g)(1) 
of this AD, and before further flight, determine if the combustor 
diffuser nozzle (CDN) case, P/N 2548M30G01 to 2548M30G07, inclusive, 
and with any CDN case S/N listed in Table 1 or Table 2 of Planning 
Information, paragraph 3.A., of CFM SB LEAP-1B-72-00-0193-01A-930A-
D, Issue 003, dated November 5, 2018, needs to be replaced as 
follows:
    (i) Inspect the HPT case forward flange outer diameter using the 
Accomplishment Instructions, paragraphs 5.B.(1), 5.B.(2), and 
5.B.(4) of CFM SB LEAP-1B-72-00-0193-01A-930A-D, Issue 003, dated 
November 5, 2018.
    (ii) If, during the inspection required by paragraph (g)(2)(i) 
of this AD, you find an HPT case forward flange cracked across the 
full axial length of the outer diameter, remove the CDN case, P/N 
2548M30G01 to 2548M30G07, inclusive, from service and, before 
further flight, replace with a part eligible for installation.

(h) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO Branch, FAA, has the authority to approve 
AMOCs for this AD, if requested using the procedures found in 14 CFR 
39.19. In accordance with 14 CFR 39.19, send your request to your 
principal inspector or local Flight Standards District Office, as 
appropriate. If sending information directly to the manager of the 
certification office, send it to the attention of the person 
identified in paragraph (i) of this AD. You may email your request 
to: [email protected].
    (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.

(i) Related Information

    For more information about this AD, contact Christopher McGuire, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: 
[email protected].

(j) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) CFM Service Bulletin LEAP-1B-72-00-0193-01A-930A-D, Issue 
003, dated November 5, 2018.
    (ii) [Reserved]
    (3) For CFM service information identified in this AD, contact 
CFM International Inc., Aviation Operations Center, 1 Neumann Way, 
M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-
432-3329; email: [email protected].
    (4) You may view this service information at FAA, Engine and 
Propeller Standards Branch, 1200 District Avenue, Burlington, MA 
01803. For information on the availability of this material at the 
FAA, call 781-238-7759.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Burlington, Massachusetts, on November 26, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-26026 Filed 11-29-18; 8:45 am]
BILLING CODE 4910-13-P



                                                            Federal Register / Vol. 83, No. 231 / Friday, November 30, 2018 / Rules and Regulations                                        61529

                                             Issued in Burlington, Massachusetts, on               30, West Building Ground Floor, Room                  We are issuing this AD to address the
                                           November 27, 2018.                                      W12–140, 1200 New Jersey Avenue SE,                   unsafe condition on these products.
                                           Robert J. Ganley,                                       Washington, DC 20590, between 9 a.m.
                                                                                                                                                         Related Service Information Under 1
                                           Manager, Engine and Propeller Standards                 and 5 p.m., Monday through Friday,
                                           Branch, Aircraft Certification Service.                                                                       CFR Part 51
                                                                                                   except Federal holidays.
                                           [FR Doc. 2018–26038 Filed 11–29–18; 8:45 am]              For service information identified in                 We reviewed CFM Service Bulletin
                                           BILLING CODE 4910–13–P                                  this final rule, contact CFM                          (SB) LEAP–1B–72–00–0193–01A–
                                                                                                   International Inc., Aviation Operations               930A–D, Issue 003, dated November 5,
                                                                                                   Center, 1 Neumann Way, M/D Room                       2018. The SB describes procedures for
                                           DEPARTMENT OF TRANSPORTATION                            285, Cincinnati, OH 45125; phone: 877–                removing the affected HPT cases from
                                                                                                   432–3272; fax: 877–432–3329; email:                   the engine. This service information is
                                           Federal Aviation Administration                         aviation.fleetsupport@ge.com. You may                 reasonably available because the
                                                                                                   view this service information at the                  interested parties have access to it
                                           14 CFR Part 39                                          FAA, Engine and Propeller Standards                   through their normal course of business
                                           [Docket No. FAA–2018–0869; Product                      Branch, 1200 District Avenue,                         or by the means identified in the
                                           Identifier 2018–NE–32–AD; Amendment 39–                 Burlington, MA 01803. For information                 ADDRESSES section.
                                           19435; AD 2018–20–01]                                   on the availability of this material at the           FAA’s Determination
                                           RIN 2120–AA64                                           FAA, call 781–238–7759. It is also
                                                                                                   available on the internet at http://                    We are issuing this AD because we
                                                                                                   www.regulations.gov by searching for                  evaluated all the relevant information
                                           Airworthiness Directives; CFM
                                                                                                   and locating Docket No. FAA–2018–                     and determined the unsafe condition
                                           International S.A. Turbofan Engines
                                                                                                   0869.                                                 described previously is likely to exist or
                                           AGENCY:  Federal Aviation                                                                                     develop in other products of the same
                                           Administration (FAA), DOT.                              Examining the AD Docket                               type design.
                                           ACTION: Final rule; request for                           You may examine the AD docket on                    AD Requirements
                                           comments.                                               the internet at http://
                                                                                                   www.regulations.gov by searching for                     This AD requires removal of the
                                           SUMMARY:   We are adopting a new                                                                              affected HPT cases from service and
                                                                                                   and locating Docket No. FAA–2018–
                                           airworthiness directive (AD) for all CFM                                                                      their replacement with a part eligible for
                                                                                                   0869; or in person at Docket Operations
                                           International S.A. (CFM) LEAP–1B21,                                                                           installation.
                                                                                                   between 9 a.m. and 5 p.m., Monday
                                           LEAP–1B23, LEAP–1B25, LEAP–1B27,
                                                                                                   through Friday, except Federal holidays.              FAA’s Justification and Determination
                                           LEAP–1B28, LEAP–1B28B1, LEAP–
                                                                                                   The AD docket contains this final rule,               of the Effective Date
                                           1B28B2, LEAP–1B28B2C, LEAP–
                                                                                                   the regulatory evaluation, any
                                           1B28B3, LEAP–1B28BBJ1, and LEAP–                                                                                 An unsafe condition exists that
                                                                                                   comments received, and other
                                           1B28BBJ2 turbofan engines with a                                                                              requires the immediate adoption of this
                                                                                                   information. The street address for the
                                           certain high-pressure turbine (HPT)                                                                           AD without providing an opportunity
                                                                                                   Docket Operations (phone: 800–647–
                                           stator case (HPT cases) installed. This                                                                       for public comments prior to adoption.
                                                                                                   5527) is listed above. Comments will be
                                           AD requires removal of affected HPT                                                                           The FAA has found that the risk to the
                                                                                                   available in the AD docket shortly after
                                           cases from service and their                                                                                  flying public justifies waiving notice
                                                                                                   receipt.
                                           replacement with a part eligible for                                                                          and comment prior to the adoption of
                                           installation. This AD was prompted by                   FOR FURTHER INFORMATION CONTACT:                      this rule because the compliance time
                                           the discovery of a quality escape at a                  Christopher McGuire, Aerospace                        for the required action is shorter than
                                           manufacturing facility involving                        Engineer, ECO Branch, FAA, 1200                       the time necessary for the public to
                                           unapproved welds on HPT cases. We                       District Avenue, Burlington, MA 01803;                comment and for us to publish the final
                                           are issuing this AD to address the unsafe               phone: 781–238–7120; fax: 781–238–                    rule. Certain HPTs cases must be
                                           condition on these products.                            7199; email: chris.mcguire@faa.gov.                   removed within 200 cycles after the
                                           DATES: This AD is effective December                    SUPPLEMENTARY INFORMATION:                            effective date of this AD to ensure they
                                           17, 2018.                                               Discussion                                            do not fail. Therefore, we find good
                                             The Director of the Federal Register                                                                        cause that notice and opportunity for
                                           approved the incorporation by reference                    We learned from CFM of a quality                   prior public comment are impracticable.
                                           of a certain publication listed in this AD              escape at one of their suppliers, AECC                In addition, for the reason stated above,
                                           as of December 17, 2018.                                Aero Science and Technology Co., Ltd.,                we find that good cause exists for
                                             We must receive comments on this                      which was performing welds on newly-                  making this amendment effective in less
                                           AD by January 14, 2019.                                 manufactured components to correct                    than 30 days.
                                           ADDRESSES: You may send comments,                       errors introduced in their manufacturing
                                                                                                   process. These welds were not reviewed                Comments Invited
                                           using the procedures found in 14 CFR
                                           11.43 and 11.45, by any of the following                or approved by either CFM or the FAA.                   This AD is a final rule that involves
                                           methods:                                                CFM’s review of manufacturing records                 requirements affecting flight safety and
                                             • Federal eRulemaking Portal: Go to                   determined that these parts include HPT               was not preceded by notice and an
                                           http://www.regulations.gov. Follow the                  cases installed on CFM LEAP–1B                        opportunity for public comment.
                                           instructions for submitting comments.                   turbofan engines. These HPT cases are                 However, we invite you to send any
                                             • Fax: 202–493–2251.                                  life limited. The unapproved repairs                  written data, views, or arguments about
                                             • Mail: U.S. Department of                            reduced the material capability of these              this final rule. Send your comments to
amozie on DSK3GDR082PROD with RULES




                                           Transportation, Docket Operations, M–                   cases which requires their removal prior              an address listed under the ADDRESSES
                                           30, West Building Ground Floor, Room                    to reaching their published                           section. Include the docket number
                                           W12–140, 1200 New Jersey Avenue SE,                     Airworthiness Limitation Section life                 FAA–2018–0869 and Product Identifier
                                           Washington, DC 20590.                                   limit. This condition, if not addressed,              2018–NE–32–AD at the beginning of
                                             • Hand Delivery: U.S. Department of                   could result in failure of the HPT case,              your comments. We specifically invite
                                           Transportation, Docket Operations, M–                   engine fire, and damage to the airplane.              comments on the overall regulatory,


                                      VerDate Sep<11>2014   16:03 Nov 29, 2018   Jkt 247001   PO 00000   Frm 00021   Fmt 4700   Sfmt 4700   E:\FR\FM\30NOR1.SGM   30NOR1


                                           61530            Federal Register / Vol. 83, No. 231 / Friday, November 30, 2018 / Rules and Regulations

                                           economic, environmental, and energy                     www.regulations.gov, including any                     Costs of Compliance
                                           aspects of this final rule. We will                     personal information you provide. We
                                           consider all comments received by the                   will also post a report summarizing each                 We estimate that this AD affects two
                                           closing date and may amend this final                   substantive verbal contact we receive                  engines installed on airplanes of U.S.
                                           rule because of those comments.                                                                                registry.
                                                                                                   about this final rule.
                                             We will post all comments we                                                                                   We estimate the following costs to
                                           receive, without change, to http://                                                                            comply with this AD:
                                                                                                                ESTIMATED COSTS
                                                                                                                                                                               Cost per        Cost on
                                                                 Action                                              Labor cost                          Parts cost            product      U.S. operators

                                           Remove HPT case and FPI of forward flange              1000 work-hour × $85 per hour = $85,000 ....                $179,400           $264,400        $528,800



                                             We estimate the following costs to do                 be required based on the results of the                determining the number of aircraft that
                                           any necessary replacements that would                   inspection. We have no way of                          might need this replacement:

                                                                                                              ON-CONDITION COSTS
                                                                                                                                                                                              Cost per
                                                                     Action                                                         Labor cost                                Parts cost      product

                                           Replace combustion case assembly ............................   10 work-hours × $85 per hour = $850 .........................         $558,800        $559,650



                                           Authority for This Rulemaking                           13132. This AD will not have a                         § 39.13     [Amended]
                                              Title 49 of the United States Code                   substantial direct effect on the States, on
                                                                                                   the relationship between the national                  ■ 2. The FAA amends § 39.13 by adding
                                           specifies the FAA’s authority to issue                                                                         the following new airworthiness
                                           rules on aviation safety. Subtitle I,                   government and the States, or on the
                                                                                                                                                          directive (AD):
                                           section 106, describes the authority of                 distribution of power and
                                           the FAA Administrator. ‘‘Subtitle VII:                  responsibilities among the various                     2018–20–01 CFM International S.A.:
                                           Aviation Programs’’ describes in more                   levels of government.                                      Amendment 39–19435; Docket No.
                                                                                                                                                              FAA–2018–0869; Product Identifier
                                           detail the scope of the Agency’s                          For the reasons discussed above, I                       2018–NE–32–AD.
                                           authority.                                              certify that this AD:
                                              We are issuing this rulemaking under                                                                        (a) Effective Date
                                                                                                     (1) Is not a ‘‘significant regulatory
                                           the authority described in Subtitle VII,                                                                           This AD is effective December 17, 2018.
                                                                                                   action’’ under Executive Order 12866,
                                           Part A, Subpart III, Section 44701:
                                           ‘‘General requirements.’’ Under that                      (2) Is not a ‘‘significant rule’’ under              (b) Affected ADs
                                           section, Congress charges the FAA with                  DOT Regulatory Policies and Procedures                     None.
                                           promoting safe flight of civil aircraft in              (44 FR 11034, February 26, 1979),
                                           air commerce by prescribing regulations                                                                        (c) Applicability
                                                                                                     (3) Will not affect intrastate aviation
                                           for practices, methods, and procedures                  in Alaska, and                                           This AD applies to CFM International S.A.
                                           the Administrator finds necessary for                                                                          (CFM) LEAP–1B21, LEAP–1B23, LEAP–
                                           safety in air commerce. This regulation                   (4) Will not have a significant                      1B25, LEAP–1B27, LEAP–1B28, LEAP–
                                           is within the scope of that authority                   economic impact, positive or negative,                 1B28B1, LEAP–1B28B2, LEAP–1B28B2C,
                                           because it addresses an unsafe condition                on a substantial number of small entities              LEAP–1B28B3, LEAP–1B28BBJ1, and LEAP–
                                           that is likely to exist or develop on                   under the criteria of the Regulatory                   1B28BBJ2 turbofan engines with a high-
                                           products identified in this rulemaking                  Flexibility Act.                                       pressure turbine (HPT) stator case (HPT
                                           action.                                                                                                        case), part number (P/N) 2541M81G01
                                                                                                   List of Subjects in 14 CFR Part 39                     installed, and with any HPT case serial
                                              This AD is issued in accordance with
                                           authority delegated by the Executive                      Air transportation, Aircraft, Aviation               number (S/N) listed in Table 1 or Table 2 of
                                           Director, Aircraft Certification Service,               safety, Incorporation by reference,                    Planning Information, paragraph 3.A., of
                                           as authorized by FAA Order 8000.51C.                                                                           CFM Service Bulletin (SB) LEAP–1B–72–00–
                                                                                                   Safety.
                                           In accordance with that order, issuance                                                                        0193–01A–930A–D, Issue 003, dated
                                           of ADs is normally a function of the                    Adoption of the Amendment                              November 5, 2018.
                                           Compliance and Airworthiness                              Accordingly, under the authority                     (d) Subject
                                           Division, but during this transition                    delegated to me by the Administrator,                    Joint Aircraft System Component (JASC)
                                           period, the Executive Director has                      the FAA amends 14 CFR part 39 as                       Code 7250, Turbine Section.
                                           delegated the authority to issue ADs
                                                                                                   follows:                                               (e) Unsafe Condition
                                           applicable to engines, propellers, and
                                           associated appliances to the Manager,
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                                                                                                   PART 39—AIRWORTHINESS                                    This AD was prompted by the discovery of
                                           Engine and Propeller Standards Branch,                  DIRECTIVES                                             a quality escape at a manufacturing facility
                                           Policy and Innovation Division.                                                                                involving unapproved welds on HPT cases.
                                                                                                                                                          We are issuing this AD to prevent failure of
                                           Regulatory Findings                                     ■ 1. The authority citation for part 39
                                                                                                                                                          the HPT case. The unsafe condition, if not
                                             This AD will not have federalism                      continues to read as follows:                          addressed, could result in engine fire and
                                           implications under Executive Order                          Authority: 49 U.S.C. 106(g), 40113, 44701.         damage to the airplane.



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                                                            Federal Register / Vol. 83, No. 231 / Friday, November 30, 2018 / Rules and Regulations                                        61531

                                           (f) Compliance                                             (i) CFM Service Bulletin LEAP–1B–72–00–            and click ‘‘SEARCH’’. Click on Open
                                             Comply with this AD within the                        0193–01A–930A–D, Issue 003, dated                     Docket Folder on the line associated
                                           compliance times specified, unless already              November 5, 2018.                                     with this deviation.
                                           done.                                                      (ii) [Reserved]
                                                                                                      (3) For CFM service information identified         FOR FURTHER INFORMATION CONTACT: If
                                           (g) Required Actions                                    in this AD, contact CFM International Inc.,           you have questions on this temporary
                                              (1) After the effective date of this AD,             Aviation Operations Center, 1 Neumann                 deviation, call or email Mr. Michael
                                           remove the affected HPT case from service no            Way, M/D Room 285, Cincinnati, OH 45125;              Thorogood, Bridge Administration
                                           later than the number of cycles in service              phone: 877–432–3272; fax: 877–432–3329;               Branch Fifth District, Coast Guard,
                                           specified in Table 1 or Table 2 of Planning             email: aviation.fleetsupport@ge.com.                  telephone 757–398–6557, email
                                                                                                      (4) You may view this service information          Michael.R.Thorogood@uscg.mil.
                                           Information, paragraph 3.A., of CFM SB
                                                                                                   at FAA, Engine and Propeller Standards
                                           LEAP–1B–72–00–0193–01A–930A–D, Issue                                                                          SUPPLEMENTARY INFORMATION: The City
                                                                                                   Branch, 1200 District Avenue, Burlington,
                                           003, dated November 5, 2018.                                                                                  of Chesapeake owner and operator of
                                                                                                   MA 01803. For information on the
                                              (2) After removing the HPT case as                                                                         the S168/Great Bridge bridge has
                                                                                                   availability of this material at the FAA, call
                                           required in paragraph (g)(1) of this AD, and                                                                  requested a temporary deviation from
                                                                                                   781–238–7759.
                                           before further flight, determine if the
                                           combustor diffuser nozzle (CDN) case, P/N
                                                                                                      (5) You may view this service information          the current operating regulations to
                                                                                                   that is incorporated by reference at the              ensure the safety of the increased
                                           2548M30G01 to 2548M30G07, inclusive, and
                                                                                                   National Archives and Records                         volumes of spectators that will be
                                           with any CDN case S/N listed in Table 1 or              Administration (NARA). For information on
                                           Table 2 of Planning Information, paragraph                                                                    participating in the Annual Chesapeake
                                                                                                   the availability of this material at NARA, call
                                           3.A., of CFM SB LEAP–1B–72–00–0193–                                                                           Rotary Christmas Parade on Saturday,
                                                                                                   202–741–6030, or go to: http://
                                           01A–930A–D, Issue 003, dated November 5,                www.archives.gov/federal-register/cfr/ibr-            December 1, 2018. The S168/Great
                                           2018, needs to be replaced as follows:                  locations.html.                                       Bridge Bridge carries SR 168/Battlefield
                                              (i) Inspect the HPT case forward flange                                                                    Boulevard South over the Atlantic
                                           outer diameter using the Accomplishment                   Issued in Burlington, Massachusetts, on
                                                                                                                                                         Intracoastal Waterway (AICW),
                                           Instructions, paragraphs 5.B.(1), 5.B.(2), and          November 26, 2018.
                                                                                                                                                         Albemarle and Chesapeake Canal, mile
                                           5.B.(4) of CFM SB LEAP–1B–72–00–0193–                   Robert J. Ganley,
                                           01A–930A–D, Issue 003, dated November 5,
                                                                                                                                                         12.0, at Chesapeake, VA. This bridge is
                                                                                                   Manager, Engine and Propeller Standards               a double bascule drawbridge and has a
                                           2018.                                                   Branch, Aircraft Certification Service.
                                              (ii) If, during the inspection required by                                                                 vertical clearance of 8 feet above mean
                                                                                                   [FR Doc. 2018–26026 Filed 11–29–18; 8:45 am]          high water in the closed position. The
                                           paragraph (g)(2)(i) of this AD, you find an
                                           HPT case forward flange cracked across the              BILLING CODE 4910–13–P                                bridge has an unlimited vertical
                                           full axial length of the outer diameter,                                                                      clearance in the open position.
                                           remove the CDN case, P/N 2548M30G01 to                                                                           The current operating regulation is set
                                           2548M30G07, inclusive, from service and,                DEPARTMENT OF HOMELAND                                out in 33 CFR 117.997(g). Under this
                                           before further flight, replace with a part              SECURITY                                              temporary deviation, the bridge will be
                                           eligible for installation.                                                                                    maintained in the closed-to-navigation
                                           (h) Alternative Methods of Compliance                   Coast Guard                                           position from 4 p.m. to 6 p.m. and from
                                           (AMOCs)                                                                                                       8 p.m. to 10 p.m. on Saturday,
                                                                                                   33 CFR Part 117                                       December 1, 2018.
                                              (1) The Manager, ECO Branch, FAA, has
                                           the authority to approve AMOCs for this AD,             [Docket No. USCG–2018–1035]                              The AICW, Albemarle and
                                           if requested using the procedures found in 14                                                                 Chesapeake Canal, is used by a variety
                                           CFR 39.19. In accordance with 14 CFR 39.19,             Drawbridge Operation Regulation;                      of vessels including U.S. government
                                           send your request to your principal inspector           Atlantic Intracoastal Waterway,                       vessels, small commercial vessels,
                                           or local Flight Standards District Office, as           Albemarle and Chesapeake Canal,                       recreational vessels and tug and barge
                                           appropriate. If sending information directly            Chesapeake, VA                                        traffic. The Coast Guard has carefully
                                           to the manager of the certification office,
                                                                                                                                                         considered the nature and volume of
                                           send it to the attention of the person                  AGENCY: Coast Guard, DHS.
                                           identified in paragraph (i) of this AD. You                                                                   vessel traffic on the waterway in
                                                                                                   ACTION:Notice of deviation from                       publishing this temporary deviation.
                                           may email your request to: ANE-AD-AMOC@                 drawbridge regulation.
                                           faa.gov.                                                                                                         Vessels able to pass through the
                                              (2) Before using any approved AMOC,                  SUMMARY:   The Coast Guard has issued a               bridge in the closed-to-navigation
                                           notify your appropriate principal inspector,            temporary deviation from the operating                position may do so at any time. The
                                           or lacking a principal inspector, the manager
                                                                                                   schedule that governs the S168/Great                  bridge will be able to open for
                                           of the local flight standards district office/                                                                emergencies and there is no immediate
                                           certificate holding district office.                    Bridge bridge. This bridge carries SR168
                                                                                                   (Battlefield Boulevard South) over the                alternative route for vessels unable to
                                           (i) Related Information                                 Atlantic Intracoastal Waterway (AICW),                pass through the bridge in the closed
                                             For more information about this AD,                   Albemarle and Chesapeake Canal, mile                  position. The Coast Guard will also
                                           contact Christopher McGuire, Aerospace                  12.0, at Chesapeake, VA. The deviation                inform the users of the waterway
                                           Engineer, ECO Branch, FAA, 1200 District                is necessary to facilitate the Annual                 through our Local and Broadcast
                                           Avenue, Burlington, MA 01803; phone: 781–               Chesapeake Rotary Christmas Parade.                   Notices to Mariners of the change in
                                           238–7120; fax: 781–238–7199; email:                     This deviation allows the bridge to                   operating schedule for the bridge so that
                                           chris.mcguire@faa.gov.
                                                                                                   remain in the closed-to-navigation                    vessel operators can arrange their
                                           (j) Material Incorporated by Reference                  position.                                             transits to minimize any impact caused
                                                                                                                                                         by the temporary deviation.
                                              (1) The Director of the Federal Register             DATES:  The deviation is effective from 4                In accordance with 33 CFR 117.35(e),
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                                           approved the incorporation by reference                 p.m. to 10 p.m., on Saturday, December
                                           (IBR) of the service information listed in this
                                                                                                                                                         the drawbridge must return to its regular
                                                                                                   1, 2018.                                              operating schedule immediately at the
                                           paragraph under 5 U.S.C. 552(a) and 1 CFR
                                           part 51.                                                ADDRESSES: The docket for this                        end of the effective period of this
                                              (2) You must use this service information            deviation, USCG–2018–1035 is available                temporary deviation. This deviation
                                           as applicable to do the actions required by             at http://www.regulations.gov. Type the               from the operating regulations is
                                           this AD, unless the AD specifies otherwise.             docket number in the ‘‘SEARCH’’ box                   authorized under 33 CFR 117.35.


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Document Created: 2018-11-30 04:36:00
Document Modified: 2018-11-30 04:36:00
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule; request for comments.
DatesThis AD is effective December 17, 2018.
ContactChristopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: [email protected]
FR Citation83 FR 61529 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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