83_FR_54874 83 FR 54663 - Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines

83 FR 54663 - Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan Engines

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 211 (October 31, 2018)

Page Range54663-54665
FR Document2018-23712

We are adopting a new airworthiness directive (AD) for all Pratt & Whitney Division (PW) PW4074D, PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines with a low-pressure compressor (LPC) fan hub, part number (P/N) 51B821 or P/N 52B521, installed. This AD was prompted by updated low-cycle fatigue analysis techniques that indicate certain LPC fan hubs could crack before their published life limit. This AD requires repetitive eddy current inspections (ECIs) and fluorescent penetrant inspections (FPIs) for cracks in certain LPC fan hubs and removal of LPC fan hubs from service that fail inspection. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 211 (Wednesday, October 31, 2018)
[Federal Register Volume 83, Number 211 (Wednesday, October 31, 2018)]
[Rules and Regulations]
[Pages 54663-54665]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-23712]



========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

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


Federal Register / Vol. 83, No. 211 / Wednesday, October 31, 2018 / 
Rules and Regulations

[[Page 54663]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0368; Product Identifier 2018-NE-12-AD; Amendment 
39-19469; AD 2018-21-11]
RIN 2120-AA64


Airworthiness Directives; Pratt & Whitney Division (PW) Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all 
Pratt & Whitney Division (PW) PW4074D, PW4077D, PW4084D, PW4090, and 
PW4090-3 turbofan engines with a low-pressure compressor (LPC) fan hub, 
part number (P/N) 51B821 or P/N 52B521, installed. This AD was prompted 
by updated low-cycle fatigue analysis techniques that indicate certain 
LPC fan hubs could crack before their published life limit. This AD 
requires repetitive eddy current inspections (ECIs) and fluorescent 
penetrant inspections (FPIs) for cracks in certain LPC fan hubs and 
removal of LPC fan hubs from service that fail inspection. We are 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective December 5, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 5, 
2018.

ADDRESSES: For service information identified in this final rule, 
contact Pratt & Whitney Division, 400 Main St., East Hartford, CT 
06118; phone: 800-565-0140; fax: 860-565-5442. 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-2018-0368.

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-
0368; 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 address for Docket Operations (phone: 800-647-
5527) is U.S. Department of Transportation, Docket Operations, M-30, 
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Jo-Ann Theriault, Aerospace Engineer, 
ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 
781-238-7105; fax: 781-238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to all PW PW4074D, PW4077D, 
PW4084D, PW4090, and PW4090-3 turbofan engines with an LPC fan hub, P/N 
51B821 or P/N 52B521, installed. The NPRM published in the Federal 
Register on July 19, 2018 (83 FR 34070). The NPRM was prompted by 
updated low-cycle fatigue analysis techniques that indicate certain LPC 
fan hubs could crack before their published life limit. The NPRM 
proposed to require repetitive ECIs and FPIs of the LPC fan hub. We are 
issuing this AD to address the unsafe condition on these products.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. The following presents the comments received on the 
NPRM and the FAA's response to each comment.

Request To Add Maximum Allowable Life

    The Air Line Pilots Association requested that we specify a maximum 
allowable life for the parts affected by this AD, in addition to the 
prescribed inspection interval, to ensure that the affected parts are 
not operated beyond a life limit in which it is likely that fatigue 
cracks will form.
    We disagree. This AD intends to specify a new inspection interval 
to reduce the risk of a fan hub failure due to potential low-cycle 
fatigue cracking. We determined that repetitive inspections, in 
conjunction with existing life limits for the small population of 
affected parts, maintains an acceptable level of safety for the fleet. 
The life limits for the affected parts are given in the appropriate 
Engine Manual, Chapter 5, Airworthiness Limitations Section. Operators 
are responsible for complying with those life limits. We did not change 
this AD.

Request To Clarify FPI Instructions

    All Nippon Airways requested clarification for performing the FPIs 
required by this AD. The instructions for performing ECIs are specified 
in PW Alert Service Bulletin (ASB) PW4G-112-A72-351, dated February 22, 
2018, which is incorporated by reference by this AD; however, 
instructions for performing FPIs are not specified.
    We disagree. FPI is an industry-standard inspection. Operators are 
permitted to use an FPI process that is equivalent to the FPI process 
conducted by the original equipment manufacturer. We are incorporating 
by reference the instructions for performing ECIs because ECI is not an 
industry standard practice. ECI requires procedures, tooling, 
acceptance, and rejection criteria that are specific to the part being 
inspected. We did not change this AD.

Request To Review Applicability

    PW stated that this AD should apply to all PW PW4074D, PW4077D, 
PW4084D, PW4090, and PW4090-3 turbofan engines with LPC fan hub, P/N 
51B821 or P/N 52B521, installed as of or after February 22, 2018.
    We disagree. The unsafe condition is present for any LPC fan hub, 
P/N 51B521 or P/N 52B521, installed in PW PW4074D, PW4077D, PW4084D, 
PW4090, and PW4090-3 turbofan engines regardless of the installation 
date. This AD requires inspections of all applicable LPC fan hubs, P/N 
51B521 or P/N 52B521, in service. We did not change this AD.

[[Page 54664]]

Clarification to Costs of Compliance

    We determined that we were not clear that only one LPC fan hub 
might need replacing. We clarified this in our cost estimate.

Support for the AD

    The Boeing Company expressed support for the NPRM as written.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule as proposed except for minor editorial changes. We have 
determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    We reviewed PW ASB PW4G-112-A72-351, dated February 22, 2018. The 
PW ASB describes procedures for performing LPC fan hub ECIs and FPIs. 
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.

Other Related Service Information

    We reviewed PW PW4000 Series 112 Inch Turbofan Engines Cleaning, 
Inspection and Repair (CIR) Manual, P/N 51A750, Chapter/Section 72-31-
07, Inspection/Check-02, Revision No. 77, dated July 15, 2018. The CIR 
Manual contains additional information regarding FPI and ECI of the LPC 
fan hub.

Costs of Compliance

    We estimate that this AD affects 32 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
----------------------------------------------------------------------------------------------------------------
Inspection............................  40 work-hours x $85 per               $0          $3,400        $108,800
                                         hour = $3,400.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that would be required based on the results of the proposed inspection. 
We estimate that one engine will need this replacement and estimate the 
parts cost using a prorated formula that takes the early removal of the 
life-limited part into account.

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                     Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Replace the LPC fan hub (prorated part cost)..  0 work-hours x $85 per hour = $0        $288,000        $288,000
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    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):

2018-21-11 Pratt & Whitney Division: Amendment 39-19469; Docket No. 
FAA-2018-0368; Product Identifier 2018-NE-12-AD.

[[Page 54665]]

(a) Effective Date

    This AD is effective December 5, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Pratt & Whitney Division (PW) PW4074D, 
PW4077D, PW4084D, PW4090, and PW4090-3 turbofan engines with low-
pressure compressor (LPC) fan hub, part number (P/N) 51B821 or P/N 
52B521, installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7230, Turbine Engine 
Compressor Section.

(e) Unsafe Condition

    This AD was prompted by low-cycle fatigue analysis techniques, 
updated by the engine manufacturer, which indicated certain LPC fan 
hubs could crack before their published life limit. We are issuing 
this AD to prevent failure of the LPC fan hub. The unsafe condition, 
if not addressed, could result in uncontained hub release, damage to 
the engine, and damage to the airplane.

(f) Compliance

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

(g) Required Actions

    (1) After the effective date of this AD, perform a fluorescent 
penetrant inspection (FPI) and an eddy current inspection (ECI) of 
the LPC fan hub the next time the engine is separated at the M-
flange and the LPC fan hub has accumulated 2,000 or more flight 
cycles since the last FPI and ECI.
    (2) Thereafter, perform an FPI and an ECI of the LPC fan hub 
every time the engine is separated at the M-flange and the LPC fan 
hub has accumulated 2,000 or more flight cycles since the last LPC 
fan hub ECI and FPI.
    (3) Use the Accomplishment Instructions, Step No. 11, in PW 
Alert Service Bulletin PW4G-112-A72-351, dated February 22, 2018, to 
do the ECI.
    (4) If a crack is found during the inspections required by 
paragraphs (g)(1) or (2) of this AD, remove the LPC fan hub from 
service before further flight and 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 Jo-Ann Theriault, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7105; 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) Pratt & Whitney Division Alert Service Bulletin PW4G-112-
A72-351, dated February 22, 2018.
    (ii) [Reserved.]
    (3) For service information identified in this AD, contact Pratt 
& Whitney Division, 400 Main St., East Hartford, CT 06118; phone: 
800-565-0140; fax: 860-565-5442.
    (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 October 25, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-23712 Filed 10-30-18; 8:45 am]
BILLING CODE 4910-13-P



                                                                                                                                                                                             54663

                                           Rules and Regulations                                                                                         Federal Register
                                                                                                                                                         Vol. 83, No. 211

                                                                                                                                                         Wednesday, October 31, 2018



                                           This section of the FEDERAL REGISTER                    availability of this material at the FAA,             allowable life for the parts affected by
                                           contains regulatory documents having general            call 781–238–7759. It is also available               this AD, in addition to the prescribed
                                           applicability and legal effect, most of which           on the internet at http://                            inspection interval, to ensure that the
                                           are keyed to and codified in the Code of                www.regulations.gov by searching for                  affected parts are not operated beyond a
                                           Federal Regulations, which is published under           and locating Docket No. FAA–2018–                     life limit in which it is likely that fatigue
                                           50 titles pursuant to 44 U.S.C. 1510.
                                                                                                   0368.                                                 cracks will form.
                                           The Code of Federal Regulations is sold by              Examining the AD Docket                                  We disagree. This AD intends to
                                           the Superintendent of Documents.                                                                              specify a new inspection interval to
                                                                                                     You may examine the AD docket on                    reduce the risk of a fan hub failure due
                                                                                                   the internet at http://                               to potential low-cycle fatigue cracking.
                                           DEPARTMENT OF TRANSPORTATION                            www.regulations.gov by searching for                  We determined that repetitive
                                                                                                   and locating Docket No. FAA–2018–                     inspections, in conjunction with
                                           Federal Aviation Administration                         0368; or in person at Docket Operations               existing life limits for the small
                                                                                                   between 9 a.m. and 5 p.m., Monday                     population of affected parts, maintains
                                           14 CFR Part 39                                          through Friday, except Federal holidays.              an acceptable level of safety for the fleet.
                                           [Docket No. FAA–2018–0368; Product                      The AD docket contains this final rule,               The life limits for the affected parts are
                                           Identifier 2018–NE–12–AD; Amendment                     the regulatory evaluation, any                        given in the appropriate Engine Manual,
                                           39–19469; AD 2018–21–11]                                comments received, and other                          Chapter 5, Airworthiness Limitations
                                                                                                   information. The address for Docket                   Section. Operators are responsible for
                                           RIN 2120–AA64                                           Operations (phone: 800–647–5527) is                   complying with those life limits. We did
                                                                                                   U.S. Department of Transportation,                    not change this AD.
                                           Airworthiness Directives; Pratt &
                                                                                                   Docket Operations, M–30, West
                                           Whitney Division (PW) Turbofan
                                                                                                   Building Ground Floor, Room W12–140,                  Request To Clarify FPI Instructions
                                           Engines
                                                                                                   1200 New Jersey Avenue SE,                              All Nippon Airways requested
                                           AGENCY:  Federal Aviation                               Washington, DC 20590.                                 clarification for performing the FPIs
                                           Administration (FAA), DOT.                              FOR FURTHER INFORMATION CONTACT: Jo-                  required by this AD. The instructions
                                           ACTION: Final rule.                                     Ann Theriault, Aerospace Engineer,                    for performing ECIs are specified in PW
                                                                                                   ECO Branch, FAA, 1200 District                        Alert Service Bulletin (ASB) PW4G–
                                           SUMMARY:    We are adopting a new                       Avenue, Burlington, MA 01803; phone:                  112–A72–351, dated February 22, 2018,
                                           airworthiness directive (AD) for all Pratt              781–238–7105; fax: 781–238–7199;                      which is incorporated by reference by
                                           & Whitney Division (PW) PW4074D,                        email: jo-ann.theriault@faa.gov.                      this AD; however, instructions for
                                           PW4077D, PW4084D, PW4090, and                           SUPPLEMENTARY INFORMATION:                            performing FPIs are not specified.
                                           PW4090–3 turbofan engines with a low-                                                                           We disagree. FPI is an industry-
                                           pressure compressor (LPC) fan hub, part                 Discussion
                                                                                                                                                         standard inspection. Operators are
                                           number (P/N) 51B821 or P/N 52B521,                        We issued a notice of proposed                      permitted to use an FPI process that is
                                           installed. This AD was prompted by                      rulemaking (NPRM) to amend 14 CFR                     equivalent to the FPI process conducted
                                           updated low-cycle fatigue analysis                      part 39 by adding an AD that would
                                                                                                                                                         by the original equipment manufacturer.
                                           techniques that indicate certain LPC fan                apply to all PW PW4074D, PW4077D,
                                                                                                                                                         We are incorporating by reference the
                                           hubs could crack before their published                 PW4084D, PW4090, and PW4090–3
                                                                                                                                                         instructions for performing ECIs because
                                           life limit. This AD requires repetitive                 turbofan engines with an LPC fan hub,
                                                                                                                                                         ECI is not an industry standard practice.
                                           eddy current inspections (ECIs) and                     P/N 51B821 or P/N 52B521, installed.
                                                                                                                                                         ECI requires procedures, tooling,
                                           fluorescent penetrant inspections (FPIs)                The NPRM published in the Federal
                                                                                                                                                         acceptance, and rejection criteria that
                                           for cracks in certain LPC fan hubs and                  Register on July 19, 2018 (83 FR 34070).
                                                                                                                                                         are specific to the part being inspected.
                                           removal of LPC fan hubs from service                    The NPRM was prompted by updated
                                                                                                                                                         We did not change this AD.
                                           that fail inspection. We are issuing this               low-cycle fatigue analysis techniques
                                           AD to address the unsafe condition on                   that indicate certain LPC fan hubs could              Request To Review Applicability
                                           these products.                                         crack before their published life limit.
                                                                                                                                                           PW stated that this AD should apply
                                           DATES: This AD is effective December 5,                 The NPRM proposed to require
                                                                                                                                                         to all PW PW4074D, PW4077D,
                                           2018.                                                   repetitive ECIs and FPIs of the LPC fan
                                                                                                                                                         PW4084D, PW4090, and PW4090–3
                                              The Director of the Federal Register                 hub. We are issuing this AD to address
                                                                                                                                                         turbofan engines with LPC fan hub, P/
                                           approved the incorporation by reference                 the unsafe condition on these products.
                                                                                                                                                         N 51B821 or P/N 52B521, installed as of
                                           of a certain publication listed in this AD              Comments                                              or after February 22, 2018.
                                           as of December 5, 2018.                                   We gave the public the opportunity to                 We disagree. The unsafe condition is
                                           ADDRESSES: For service information                      participate in developing this final rule.            present for any LPC fan hub,
                                           identified in this final rule, contact Pratt            The following presents the comments                   P/N 51B521 or P/N 52B521, installed in
                                           & Whitney Division, 400 Main St., East                                                                        PW PW4074D, PW4077D, PW4084D,
amozie on DSK3GDR082PROD with RULES




                                                                                                   received on the NPRM and the FAA’s
                                           Hartford, CT 06118; phone: 800–565–                     response to each comment.                             PW4090, and PW4090–3 turbofan
                                           0140; fax: 860–565–5442. You may view                                                                         engines regardless of the installation
                                           this service information at the FAA,                    Request To Add Maximum Allowable                      date. This AD requires inspections of all
                                           Engine and Propeller Standards Branch,                  Life                                                  applicable LPC fan hubs, P/N 51B521 or
                                           1200 District Avenue, Burlington, MA                      The Air Line Pilots Association                     P/N 52B521, in service. We did not
                                           01803. For information on the                           requested that we specify a maximum                   change this AD.


                                      VerDate Sep<11>2014   16:24 Oct 30, 2018   Jkt 247001   PO 00000   Frm 00001   Fmt 4700   Sfmt 4700   E:\FR\FM\31OCR1.SGM   31OCR1


                                           54664               Federal Register / Vol. 83, No. 211 / Wednesday, October 31, 2018 / Rules and Regulations

                                           Clarification to Costs of Compliance                                     • Are consistent with the intent that                 Other Related Service Information
                                             We determined that we were not clear                                 was proposed in the NPRM for
                                                                                                                  addressing the unsafe condition; and                      We reviewed PW PW4000 Series 112
                                           that only one LPC fan hub might need                                                                                           Inch Turbofan Engines Cleaning,
                                           replacing. We clarified this in our cost                                 • Do not add any additional burden
                                                                                                                  upon the public than was already                        Inspection and Repair (CIR) Manual,
                                           estimate.                                                                                                                      P/N 51A750, Chapter/Section 72–31–07,
                                                                                                                  proposed in the NPRM.
                                           Support for the AD                                                                                                             Inspection/Check-02, Revision No. 77,
                                                                                                                  Related Service Information Under 1                     dated July 15, 2018. The CIR Manual
                                             The Boeing Company expressed                                         CFR Part 51                                             contains additional information
                                           support for the NPRM as written.
                                                                                                                    We reviewed PW ASB PW4G–112–                          regarding FPI and ECI of the LPC fan
                                           Conclusion                                                             A72–351, dated February 22, 2018. The                   hub.
                                              We reviewed the relevant data,                                      PW ASB describes procedures for                         Costs of Compliance
                                           considered the comments received, and                                  performing LPC fan hub ECIs and FPIs.
                                           determined that air safety and the                                     This service information is reasonably                    We estimate that this AD affects 32
                                           public interest require adopting this                                  available because the interested parties                engines installed on airplanes of U.S.
                                           final rule as proposed except for minor                                have access to it through their normal                  registry.
                                           editorial changes. We have determined                                  course of business or by the means                        We estimate the following costs to
                                           that these minor changes:                                              identified in the ADDRESSES section.                    comply with this AD:

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

                                           Inspection ........................................................   40 work-hours × $85 per hour = $3,400 ........                        $0         $3,400        $108,800



                                             We estimate the following costs to do                                proposed inspection. We estimate that                   prorated formula that takes the early
                                           any necessary replacements that would                                  one engine will need this replacement                   removal of the life-limited part into
                                           be required based on the results of the                                and estimate the parts cost using a                     account.

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

                                           Replace the LPC fan hub (prorated part cost) .............                    0 work-hours × $85 per hour = $0 ...............................       $288,000        $288,000



                                           Authority for This Rulemaking                                          Compliance and Airworthiness                            on a substantial number of small entities
                                              Title 49 of the United States Code                                  Division, but during this transition                    under the criteria of the Regulatory
                                           specifies the FAA’s authority to issue                                 period, the Executive Director has                      Flexibility Act.
                                           rules on aviation safety. Subtitle I,                                  delegated the authority to issue ADs
                                                                                                                                                                          List of Subjects in 14 CFR Part 39
                                           section 106, describes the authority of                                applicable to engines, propellers, and
                                           the FAA Administrator. Subtitle VII:                                   associated appliances to the Manager,                     Air transportation, Aircraft, Aviation
                                           Aviation Programs, describes in more                                   Engine and Propeller Standards Branch,                  safety, Incorporation by reference,
                                           detail the scope of the Agency’s                                       Policy and Innovation Division.                         Safety.
                                           authority.                                                             Regulatory Findings                                     Adoption of the Amendment
                                              We are issuing this rulemaking under
                                           the authority described in Subtitle VII,                                 This AD will not have federalism                        Accordingly, under the authority
                                           Part A, Subpart III, Section 44701:                                    implications under Executive Order                      delegated to me by the Administrator,
                                           ‘‘General requirements.’’ Under that                                   13132. This AD will not have a                          the FAA amends 14 CFR part 39 as
                                           section, Congress charges the FAA with                                 substantial direct effect on the States, on             follows:
                                           promoting safe flight of civil aircraft in                             the relationship between the national
                                           air commerce by prescribing regulations                                government and the States, or on the                    PART 39—AIRWORTHINESS
                                           for practices, methods, and procedures                                 distribution of power and                               DIRECTIVES
                                           the Administrator finds necessary for                                  responsibilities among the various
                                                                                                                  levels of government.                                   ■ 1. The authority citation for part 39
                                           safety in air commerce. This regulation
                                                                                                                    For the reasons discussed above, I                    continues to read as follows:
                                           is within the scope of that authority
                                           because it addresses an unsafe condition                               certify that this AD:                                       Authority: 49 U.S.C. 106(g), 40113, 44701.
                                           that is likely to exist or develop on                                    (1) Is not a ‘‘significant regulatory
                                                                                                                  action’’ under Executive Order 12866,                   § 39.13    [Amended]
                                           products identified in this rulemaking
                                           action.                                                                  (2) Is not a ‘‘significant rule’’ under               ■ 2. The FAA amends § 39.13 by adding
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                                              This AD is issued in accordance with                                DOT Regulatory Policies and Procedures                  the following new airworthiness
                                           authority delegated by the Executive                                   (44 FR 11034, February 26, 1979),                       directive (AD):
                                           Director, Aircraft Certification Service,                                (3) Will not affect intrastate aviation               2018–21–11 Pratt & Whitney Division:
                                           as authorized by FAA Order 8000.51C.                                   in Alaska, and                                              Amendment 39–19469; Docket No.
                                           In accordance with that order, issuance                                  (4) Will not have a significant                           FAA–2018–0368; Product Identifier
                                           of ADs is normally a function of the                                   economic impact, positive or negative,                      2018–NE–12–AD.



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                                                            Federal Register / Vol. 83, No. 211 / Wednesday, October 31, 2018 / Rules and Regulations                                      54665

                                           (a) Effective Date                                       of the local flight standards district office/        data available since lead acetate was
                                              This AD is effective December 5, 2018.                certificate holding district office.                  permanently listed demonstrate that
                                                                                                    (i) Related Information                               there is no longer a reasonable certainty
                                           (b) Affected ADs
                                                                                                       For more information about this AD,                of no harm from the use of this color
                                              None.                                                                                                       additive. This action is in response to a
                                                                                                    contact Jo-Ann Theriault, Aerospace
                                           (c) Applicability                                        Engineer, ECO Branch, FAA, 1200 District              color additive petition filed by the
                                             This AD applies to all Pratt & Whitney                 Avenue, Burlington, MA 01803; phone: 781–             Environmental Defense Fund,
                                           Division (PW) PW4074D, PW4077D,                          238–7105; fax: 781–238–7199; email: jo-               Earthjustice, Environmental Working
                                           PW4084D, PW4090, and PW4090–3 turbofan                   ann.theriault@faa.gov.                                Group, Center for Environmental
                                           engines with low-pressure compressor (LPC)               (j) Material Incorporated by Reference                Health, Healthy Homes Collaborative,
                                           fan hub, part number (P/N) 51B821 or P/N
                                                                                                       (1) The Director of the Federal Register           Health Justice Project of Loyola
                                           52B521, installed.                                       approved the incorporation by reference               University Chicago School of Law,
                                           (d) Subject                                              (IBR) of the service information listed in this       Breast Cancer Fund, Improving Kids’
                                                                                                    paragraph under 5 U.S.C. 552(a) and 1 CFR             Environment, Consumers Union,
                                             Joint Aircraft System Component (JASC)
                                           Code 7230, Turbine Engine Compressor
                                                                                                    part 51.                                              Natural Resources Defense Council,
                                                                                                       (2) You must use this service information          Consumer Federation of America,
                                           Section.                                                 as applicable to do the actions required by           Learning Disabilities Association,
                                           (e) Unsafe Condition                                     this AD, unless the AD specifies otherwise.           Maricel Maffini, and Howard Mielke.
                                                                                                       (i) Pratt & Whitney Division Alert Service
                                              This AD was prompted by low-cycle                                                                           DATES: This rule is effective December 3,
                                                                                                    Bulletin PW4G–112–A72–351, dated
                                           fatigue analysis techniques, updated by the                                                                    2018. See section XIII for further
                                                                                                    February 22, 2018.
                                           engine manufacturer, which indicated certain
                                                                                                       (ii) [Reserved.]                                   information on the filing of objections.
                                           LPC fan hubs could crack before their                       (3) For service information identified in
                                           published life limit. We are issuing this AD
                                                                                                                                                          Submit either electronic or written
                                                                                                    this AD, contact Pratt & Whitney Division,            objections and requests for a hearing on
                                           to prevent failure of the LPC fan hub. The               400 Main St., East Hartford, CT 06118;
                                           unsafe condition, if not addressed, could                                                                      the final rule by November 30, 2018.
                                                                                                    phone: 800–565–0140; fax: 860–565–5442.
                                           result in uncontained hub release, damage to                (4) You may view this service information          ADDRESSES: You may submit objections
                                           the engine, and damage to the airplane.                  at FAA, Engine and Propeller Standards                and requests for a hearing as follows.
                                           (f) Compliance                                           Branch, 1200 District Avenue, Burlington,             Please note that late, untimely filed
                                              Comply with this AD within the
                                                                                                    MA 01803. For information on the                      objections will not be considered.
                                                                                                    availability of this material at the FAA, call        Electronic objections must be submitted
                                           compliance times specified, unless already               781–238–7759.
                                           done.                                                                                                          on or before November 30, 2018. The
                                                                                                       (5) You may view this service information
                                                                                                                                                          https://www.regulations.gov electronic
                                           (g) Required Actions                                     that is incorporated by reference at the
                                                                                                    National Archives and Records                         filing system will accept comments
                                              (1) After the effective date of this AD,                                                                    until 11:59 p.m. Eastern Time at the end
                                                                                                    Administration (NARA). For information on
                                           perform a fluorescent penetrant inspection                                                                     of November 30, 2018. Objections
                                                                                                    the availability of this material at NARA, call
                                           (FPI) and an eddy current inspection (ECI) of                                                                  received by mail/hand delivery/courier
                                                                                                    202–741–6030, or go to: http://
                                           the LPC fan hub the next time the engine is
                                           separated at the M-flange and the LPC fan
                                                                                                    www.archives.gov/federal-register/cfr/ibr-            (for written/paper submissions) will be
                                                                                                    locations.html.                                       considered timely if they are
                                           hub has accumulated 2,000 or more flight
                                           cycles since the last FPI and ECI.                         Issued in Burlington, Massachusetts, on             postmarked or the delivery service
                                              (2) Thereafter, perform an FPI and an ECI             October 25, 2018.                                     acceptance receipt is on or before that
                                           of the LPC fan hub every time the engine is              Robert J. Ganley,                                     date.
                                           separated at the M-flange and the LPC fan                Manager, Engine and Propeller Standards
                                           hub has accumulated 2,000 or more flight                                                                       Electronic Submissions
                                                                                                    Branch, Aircraft Certification Service.
                                           cycles since the last LPC fan hub ECI and                                                                        Submit electronic objections in the
                                           FPI.                                                     [FR Doc. 2018–23712 Filed 10–30–18; 8:45 am]
                                                                                                                                                          following way:
                                              (3) Use the Accomplishment Instructions,              BILLING CODE 4910–13–P
                                                                                                                                                            • Federal eRulemaking Portal:
                                           Step No. 11, in PW Alert Service Bulletin
                                                                                                                                                          https://www.regulations.gov. Follow the
                                           PW4G–112–A72–351, dated February 22,
                                           2018, to do the ECI.                                                                                           instructions for submitting comments.
                                                                                                    DEPARTMENT OF HEALTH AND                              Objections submitted electronically,
                                              (4) If a crack is found during the                    HUMAN SERVICES
                                           inspections required by paragraphs (g)(1) or                                                                   including attachments, to https://
                                           (2) of this AD, remove the LPC fan hub from                                                                    www.regulations.gov will be posted to
                                                                                                    Food and Drug Administration
                                           service before further flight and replace with                                                                 the docket unchanged. Because your
                                           a part eligible for installation.                                                                              objection will be made public, you are
                                                                                                    21 CFR Part 73
                                           (h) Alternative Methods of Compliance                                                                          solely responsible for ensuring that your
                                           (AMOCs)                                                  [Docket No. FDA–2017–C–1951]                          objection does not include any
                                              (1) The Manager, ECO Branch, FAA, has                                                                       confidential information that you or a
                                                                                                    Termination of Listing of Color                       third party may not wish to be posted,
                                           the authority to approve AMOCs for this AD,
                                                                                                    Additive Exempt From Certification;                   such as medical information, your or
                                           if requested using the procedures found in 14
                                           CFR 39.19. In accordance with 14 CFR 39.19,              Lead Acetate                                          anyone else’s Social Security number, or
                                           send your request to your principal inspector            AGENCY:    Food and Drug Administration,              confidential business information, such
                                           or local flight standards district office, as            HHS.                                                  as a manufacturing process. Please note
                                           appropriate. If sending information directly                                                                   that if you include your name, contact
                                           to the manager of the certification office,              ACTION:   Final rule.
                                                                                                                                                          information, or other information that
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                                           send it to the attention of the person
                                                                                                    SUMMARY:   The Food and Drug                          identifies you in the body of your
                                           identified in paragraph (i) of this AD. You
                                           may email your request to: ANE-AD-AMOC@                  Administration (FDA or we) is                         objection, that information will be
                                           faa.gov.                                                 amending the color additive regulations               posted on https://www.regulations.gov.
                                              (2) Before using any approved AMOC,                   to no longer provide for the use of lead                • If you want to submit an objection
                                           notify your appropriate principal inspector,             acetate in cosmetics intended for                     with confidential information that you
                                           or lacking a principal inspector, the manager            coloring hair on the scalp because new                do not wish to be made available to the


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Document Created: 2018-10-31 00:33:45
Document Modified: 2018-10-31 00:33:45
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.
DatesThis AD is effective December 5, 2018.
ContactJo-Ann Theriault, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7105; fax: 781-238-7199; email: [email protected]
FR Citation83 FR 54663 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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