[ PAPERWORK REDUCTION ACT SUBMISSION Please read the instructions before completing this form. For additional forms or assistance in completing this form, contact your agency's Paperwork Clearance Officer. Send two copies of this form, the collection instrument to be reviewed, the Supporting Statement and any additional documentation to: Office of Information and Regulatory Affairs, Office of Management and Budget, Docket Library, Room 10102, 725 17th Street NW Washington, DC 20503.

1. Agency/ Subagency originating request USEPA/ Office of Enforcement and Compliance Assurance 2. OMB control number b. G None a. 2060 0391 3. Type of information collection ( check one) a. G New collection b. G Revision of a currently approved collection c. X Extension of a currently approved collection d. G Reinstatement, without change, of a previously approved collection for which approval has expired e. G Reinstatement, with change, of a previously approved collection for which approval has expired f. G Existing collection in use without an OMB control number 4. Type of review requested ( check one) a. X Regular b. G Emergency  Approval requested by: / / c. G Delegated 5. Small entities Will this information collection have a significant economic impact on a substantial number of small entities? G Yes X No For b f, note item A2 of Supporting Statement Instructions 6. Requested expiration date a. X Three years from approval date b. G Other Specify: / /___

7. Title NESHAP for Ferroalloys Production: Ferromanganese and Silicomanganese ( 40 CFR part 63, subpart XXX) ( Renewal)

8. Agency form number( s) ( If applicable) EPA ICR Number 1831.03 9. Keywords ferroalloy production facilities 10. Abstract The national emission standards for hazardous air pollutants ( NESHAP) were proposed on August 4, 1998, promulgated on May 20, 1999, and amended most recently on March 22, 2001. This regulation establishes monitoring, recordkeeping and reporting requirements to ensure a source initial and continuous compliance with the standards. Specifically, sources are required to monitor and maintain records of emissions and/ or operating parameters, conduct performance tests and/ or opacity observations, and to submit initial notifications and periodic reports.

11. Affected public ( Mark primary with " P" and all others that apply with " X") a. Individuals or households d. Farms b. P Business or other for profit e. Federal Government c. Not for profit institutions f. State, Local or Tribal Government 12. Obligation to respond ( Mark primary with " P" and all others that apply with " X") a. G Voluntary b. G Required to obtain or retain benefits c. P Mandatory 13. Annual reporting and recordkeeping hour burden a. Number of respondents 1 b. Total annual responses 7 1. Percentage of these responses collected electronically 100 % c. Total hours requested 584 d. Current OMB inventory 746 e. Difference ( 162) f. Explanation of difference 1. Program Change 0 2. Adjustment ( 162) 14. Annual reporting and recordkeeping cost burden ( in thousands of dollars) a. Total annualized capital/ startup costs $ 0 b. Total annual costs ( O& M) $ 0 c. Total annualized cost requested $ 0 d. Current OMB inventory $ 0 e. Difference $ 0 f. Explanation of difference 1. Program change 0 2. Adjustment $ 0 15. Purpose of information collection ( Mark Primary With " P" and all others that apply with " X") a. Application for benefits e. Program planning or management b. Program evaluation f. Research c. General purpose statistics g. P Regulatory or compliance d. Audit 16. Frequency of recordkeeping or reporting ( check all that apply) a. X Recordkeeping b. Q Third party disclosure c. X Reporting 1. Q On occasion 2. Q Weekly 3. Q Monthly 4. X Quarterly 5. X Semi annually 6. X Annually 7. Q Biannually 8. X Other ( describe) Initial 17. Statistical methods Does this information collection employ statistical methods?

Q Yes X No 18. Agency contact ( person who can best answer questions regarding the content of this submission) Name: Maria Malave Phone: 202 654 7027 OMB 83 I 10/ 95 19. Certification for Paperwork Reduction Act Submissions On behalf of this Federal agency, I certify that the collection of information encompassed by this request complies with' 5 CFR 1320.9.

NOTE: The text of 5 CFR 1320.9, and the related provisions of 5 CFR 1320.8( b)( 3), appear at the end of the instructions. The certification is to be made with reference to those regulatory provisions as set forth in the instructions.

The following is a summary of the topics, regarding the proposed collection of information, that the certification covers:

( a) It is necessary for the proper performance of agency functions;

( b) It avoids unnecessary duplication;

( c) It reduces burden on small entities;

( d) It uses plain, coherent, and unambiguous terminology that is understandable to respondents;

( e) Its implementation will be consistent and compatible with current reporting and recordkeeping practices;

( f) It indicates the retention periods for recordkeeping requirements;

( g) It informs respondents of the information called for under 5 CFR 1320.8( b)( 3):

( i) Why the information is being collected; ( ii) Use of information; ( iii) Burden estimate; ( iv) Nature of response ( voluntary, required for a benefit, or mandatory); ( v) Nature and extent of confidentiality; and ( vi) Need to display currently valid OMB control number;

( h) It was developed by an office that has planned and allocated resources for the efficient and effective management and use of the information to be collected ( see note in Item 19 of the instructions);

( i) It uses effective and efficient statistical survey methodology; and ( j) It makes appropriate use of information technology.

If you are unable to certify compliance with any of these provisions, identify the item below and explain the reason in Item 18 of the Supporting Statement.

Signature of Program Official Michael S. Alushin, Director Compliance Assessment and Media Programs Division Office of Compliance Office of Enforcement and Compliance Assurance Date Signature of Senior Official or designee Oscar Morales, Director Collection Strategies Division Office of Environmental Information Date OMB 83 I 10/ 95 Certification Requirement for Paperwork Reduction Act Submissions 5 CFR 1320.9 reads " As part of the agency submission to OMB of a proposed collection of information, the agency ( through the head of the agency, the Senior Official or their designee) shall certify ( and provide a record supporting such certification) that the proposed collection of information

"( a) is necessary for the proper performance of the functions of the agency, including that the information to be collected will have practical utility;

"( b) is not unnecessarily duplicative of information otherwise reasonably accessible to the agency;

"( c) reduces to the extent practicable and appropriate the burden on persons who shall provide information to or for the agency, including with respect to small entities, as defined in the Regulatory Flexibility Act 5 U. S. C. § 601( 6)), the use of such techniques as:

"( 1) establishing differing compliance or reporting requirements or timetables that take into account the resources available to those who are to respond; "( 2) the clarification, consolidation, or simplification of compliance and reporting requirements; or collection of information , or any part thereof; "( 3) an exemption from coverage of the collection of information, or any part thereof;

"( d) is written using plain, coherent, and unambiguous terminology and is understandable to those who are to respond;

"( e) is to be implemented in ways consistent and compatible, to the maximum extent practicable, with the existing reporting and recordkeeping practices of those who are to respond;

"( f) indicates for each recordkeeping requirement the length of time persons are required to maintain the records specified;

"( g) informs potential respondents of the information called for under § 1320.8( b)( 3); [ see below]

"( h) has been developed by an office that has planned and allocated resources for the efficient and effective management and use of the information to be collected, including the processing of the information in a manner which shall enhance, where appropriate, the utility of the information to agencies and the public;

"( i) uses effective and efficient statistical survey methodology appropriate to the purpose for which the information is to be collected; and "( j) to the maximum extent practicable, uses appropriate information technology to reduce burden and improve data quality, agency efficiency and responsiveness to the public."

NOTE: 5 CFR 1320.8( b)( 3) requires that each collection of information:

"( 3) informs and provides reasonable notice to the potential persons to whom the collection of information is addressed of:

"( i) the reasons the information is planned to be and/ or has been used to further the proper performance of the functions of the agency; "( ii) the way such information is planned to be and/ or has been used to further the proper performance of the functions of the agency; "( iii) an estimate, to the extent practicable, of the average burden of the collection ( together with a request that the public direct to the agency any comments concerning the accuracy of this burden estimate and any suggestions for reducing this burden); "( iv) whether responses to the collection of information are voluntary, required to obtain or retain a benefit ( citing authority), or mandatory ( citing authority); "( v) the nature and extent of confidentiality to be provided, if any ( citing authority); and "( vi) the fact that any agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number." OMB 83 I ( Instructions) 10/ 95


[Federal Register Volume 78, Number 26 (Thursday, February 7, 2013)]
[Proposed Rules]
[Pages 9009-9010]
[FR Doc No: 2013-02736]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Docket No. FAA-2012-1004; Airspace Docket No. 12-ANM-21]
RIN 2120-AA66

Proposed Amendment of VOR Federal Airway V-595; OR

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (SNPRM); reopening
of comment period.

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

SUMMARY: This SNPRM amends the notice of proposed rulemaking (NPRM)
published on October 22, 2012 which proposed to amend VHF
omnidirectional range (VOR) Federal airway V-595 in Oregon. This SNPRM
proposes to remove an additional segment of the airway due to high
terrain and navigation aid coverage issues.

DATES: Comments must be received on or before March 25, 2013.

ADDRESSES: Send comments on this proposal to the U.S. Department of
Transportation, Docket Operations, M-30, 1200 New Jersey Avenue SE.,
West Building Ground Floor, Room W12-140, Washington, DC 20590-0001;
telephone:<PHONE_NUMBER>. You must identify FAA Docket No. FAA-2012-
1004 and Airspace Docket No. 12-ANM-21 at the beginning of your
comments. You may also submit comments through the Internet at http://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: Paul Gallant, Airspace Policy and ATC
Procedures Group, Office of Airspace Services, Federal Aviation
Administration, 800 Independence Avenue SW., Washington, DC 20591;
telephone:<PHONE_NUMBER>.

SUPPLEMENTARY INFORMATION:

Comments Invited

    Interested parties are invited to participate in this proposed
rulemaking by submitting such written data, views, or arguments as they
may desire. Comments that provide the factual basis supporting the
views and suggestions presented are particularly helpful in developing
reasoned regulatory decisions on the proposal. Comments are
specifically invited on the overall regulatory, aeronautical, economic,
environmental, and energy-related aspects of the proposal.
    Communications should identify both docket numbers (FAA Docket No.
FAA-2012-1004 and Airspace Docket No. 12-ANM-21) and be submitted in
triplicate to the Docket Management Facility (see ADDRESSES section for
address and phone number). You may also submit comments through the
Internet at http://www.regulations.gov.
    Commenters wishing the FAA to acknowledge receipt of their comments
on this action must submit with those comments a self-addressed,
stamped postcard on which the following statement is made: ``Comments
to FAA Docket No. FAA-2012-1004 and Airspace Docket No. 12-ANM-21.''
The postcard will be date/time stamped and returned to the commenter.
    All communications received on or before the specified comment
closing date will be considered before taking action on the proposed
rule. The proposal contained in this action may be changed in light of
comments received. All comments submitted will be available for
examination in the public docket both before and after the comment
closing date. A report summarizing each substantive public contact with
FAA personnel concerned with this rulemaking will be filed in the
docket.

Availability of NPRM's

    An electronic copy of this document may be downloaded through the
Internet at http://www.regulations.gov.
    You may review the public docket containing the proposal, any
comments received and any final disposition in person in the Dockets
Office (see ADDRESSES section for address and phone number) between
9:00 a.m. and 5:00 p.m., Monday through Friday, except Federal
holidays. An informal docket may also be examined during normal
business hours at the office of the Western Service Center, Operations
Support Group, Federal Aviation Administration, 1601 Lind Ave. SW.,
Renton, WA 98057.
    Persons interested in being placed on a mailing list for future
NPRM's should contact the FAA's Office of Rulemaking,<PHONE_NUMBER>,
for a copy of Advisory Circular No. 11-2A, Notice of Proposed
Rulemaking Distribution System, which describes the application
procedure.

Background

    On October 22, 2012, the FAA published in the Federal Register a
NPRM to remove a segment of VOR Federal airway V-595 due to the planned
decommissioning of the Portland, OR, VOR/DME (77 FR 64444). No comments
were received.
    The NPRM would have terminated V-595 at the HARZL navigation fix,
which is approximately 29 NM southeast of the Portland VOR/DME.
Subsequent to the publication, further study showed that mountainous
terrain in the area would limit the service volume of the Deschutes,
OR, VORTAC to a degree that the Deschutes VORTAC could not be used to
identify the entire length of the proposed segment between Deschutes
and the HARZL fix. In addition, the decommissioning of the Portland
VOR/DME would require raising the IFR minimum enroute altitude (MEA)
along that segment to an unusable height.

The Proposal

    The FAA is proposing an amendment to Title 14, Code of Federal
Regulations (14 CFR) part 71 to further modify the description of VOR
Federal airway V-595. Instead of removing that segment of V-595 between
the Portland, OR, VOR/DME and the HARZL fix, as originally proposed,
the FAA is now proposing to remove the entire V-595 segment between the
Deschutes VORTAC and the Portland VOR/DME. Consequently, the amended V-
595 would extend only between the Rogue Valley, OR, VORTAC and the
Deschutes VORTAC. This action is necessary because the Portland, OR,
VOR/DME, which currently serves as the northern end point of the route,
is scheduled to be decommissioned. Further, due to high terrain issues,
the Deschutes VORTAC service volume is not adequate to support the
originally proposed segment between Deschutes and the HARZL fix. By
separate rulemaking action, the FAA is proposing to establish new area
navigation routes (T-routes) in the area.
    Since this change expands the scope of the originally proposed
rule, the FAA has determined that it is necessary to reopen the comment
period to provide additional opportunity for public comment.
    VOR Federal airways are published in paragraph 6010, of FAA Order
7400.9W dated August 8, 2012, and effective September 15, 2012, which
is incorporated by reference in 14 CFR 71.1. The VOR Federal airway
listed in this document would be subsequently published in the Order.
    The FAA has determined that this proposed regulation only involves
an established body of technical regulations for which frequent and
routine amendments are necessary to keep them operationally current.
Therefore, this proposed regulation: (1) Is not a ``significant
regulatory action'' under Executive Order 12866; (2) is not a
``significant rule'' under Department of Transportation (DOT)
Regulatory Policies and Procedures (44 FR 11034; February 26, 1979);
and (3) does not warrant preparation of a regulatory evaluation as the
anticipated impact is so minimal. Since this is a routine matter that
will only affect air traffic procedures and air navigation, it is
certified that this proposed rule, when promulgated, will not have a
significant economic impact on a substantial number of small entities
under the criteria of the Regulatory Flexibility Act.
    The FAA's authority to issue rules regarding aviation safety is
found in Title 49 of the United States Code. 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.
    This rulemaking is promulgated under the authority described in
Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the
FAA is charged with prescribing regulations to assign the use of the
airspace necessary to ensure the safety of aircraft and the efficient
use of airspace. This regulation is within the scope of that authority
as it modifies an Oregon route structure as required to preserve the
safe and efficient flow of air traffic.

Environmental Review

    This proposal will be subject to an environmental analysis in
accordance with FAA Order 1050.1E, ``Environmental Impacts: Policies
and Procedures'' prior to any FAA final regulatory action.

List of Subjects in 14 CFR Part 71

    Airspace, Incorporation by reference, Navigation (air).

The Proposed Amendment

    In consideration of the foregoing, the Federal Aviation
Administration proposes to amend 14 CFR part 71 as follows:

PART 71--DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR
TRAFFIC SERVICE ROUTES; AND REPORTING POINTS

0
1. The authority citation for part 71 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40103, 40113, 40120; E.O. 10854,
24 FR 9565, 3 CFR, 1959-1963 Comp., p. 389.

Sec.  71.1  [Amended]

0
2. The incorporation by reference in 14 CFR 71.1 of FAA Order 7400.9W,
Airspace Designations and Reporting Points, Dated August 8, 2012 and
effective September 15, 2012, is amended as follows:
* * * * *

Paragraph 6010 Domestic VOR Federal airways.

V-595 [Amended]

From Rogue Valley, OR, to Deschutes, OR.

    Issued in Washington, DC, on January 31, 2013.
Alan Wilkes,
Acting Manager, Airspace Policy and ATC Procedures Group.
[FR Doc. 2013-02736 Filed 2-6-13; 8:45 am]
BILLING CODE 4910-13-P


[Federal Register Volume 86, Number 108 (Tuesday, June 8, 2021)]
[Rules and Regulations]
[Pages 30380-30383]
[FR Doc No: 2021-11960]

=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0129; Project Identifier AD-2020-01597-E;
Amendment 39-21577; AD 2021-11-15]
RIN 2120-AA64

Airworthiness Directives; International Aero Engines AG Turbofan
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain International Aero Engines AG (IAE) V2500 model turbofan
engines. This AD was prompted by an analysis performed by the
manufacturer after an event involving an uncontained failure of a high-
pressure turbine (HPT) 1st-stage disk that resulted in high-energy
debris penetrating the engine cowling. This AD requires the performance
of an ultrasonic inspection (USI) of the HPT 1st-stage disk and HPT
2nd-stage disk and, depending on the results of the inspections,
replacement of the HPT 1st-stage disk or HPT 2nd-stage disk. The FAA is
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective July 13, 2021.
    The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of July 13,
2021.

ADDRESSES: For service information identified in this final rule,
contact International Aero Engines AG, 400 Main Street, East Hartford,
CT 06118; phone:<PHONE_NUMBER>; email<EMAIL_ADDRESS>website:
http://fleetcare.pw.utc.com. You may view this service information at
the FAA, Airworthiness Products Section, Operational Safety Branch,
1200 District Avenue, Burlington, MA 01803. For information on the
availability of this material at the FAA, call<PHONE_NUMBER>. It is
also available at https://www.regulations.gov by searching for and
locating Docket No. FAA-2021-0129.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by
searching for and locating Docket No. FAA-2021-0129; 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, any
comments received, and other information. The address for Docket
Operations 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: Nicholas Paine, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
phone:<PHONE_NUMBER>; fax:<PHONE_NUMBER>; email:
<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to certain IAE V2522-A5,
V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5,
V2531-E5, and V2533-A5 model turbofan engines. The NPRM published in
the Federal Register on March 8, 2021 (86 FR 13225). The NPRM was
prompted by an event involving an uncontained failure of an HPT 1st-
stage disk that resulted in high-energy debris penetrating the engine
cowling. On March 18, 2020, an Airbus Model A321-231 airplane, powered
by IAE V2533-A5 model turbofan engines, experienced an uncontained HPT
1st-stage disk failure that resulted in an aborted takeoff. The
uncontained failure of the HPT 1st-stage disk resulted in high-energy
debris penetrating the engine cowling. The FAA published Emergency AD
2020-07-51 on March 21, 2020 (followed by publication in the Federal
Register on April 13, 2020, as a Final Rule, Request for Comments (85
FR 20402)) and AD 2021-01-03 on January 6, 2021 (86 FR 458), to remove
from service HPT 1st-stage and HPT 2nd-stage disks identified as having
the highest risk of failure. Based on the root cause analysis performed
since that event, the manufacturer identified a population of HPT 1st-
stage disks and HPT 2nd-stage disks that require inspection and
possible removal from service. In the NPRM, the FAA proposed to require
the performance of a USI of the HPT 1st-stage disk and HPT 2nd-stage
disk and, depending on the results of the inspections, replacement of
the HPT 1st-stage disk or HPT 2nd-stage disk. The FAA is issuing this
AD to address the unsafe condition on these products.

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from three commenters. The commenters
were Cathay Pacific Airways (Cathay), IAE, and an individual commenter.
One commenter requested clarification on the compliance time for
inspection. Another commenter requested clarification regarding
additional inspections that are needed when parts are removed for piece
part inspections. One commenter requested clarification regarding the
definition of a part eligible for installation as well as the
installation prohibition. An individual commenter supported the
proposal without change. The following presents the comments received
on the NPRM and the FAA's response to each comment.

Request To Clarify USI Interval for Different Thrust Ratings

    Cathay asked for clarification of the interval for performing the
USI for any HPT 1st-stage disk or HPT 2nd-stage disk that has operated
in different thrust ratings, such as from 27K to 33K, or 33K to 27K.
Cathay reasoned that during the IAE V2500 Customer Council Call in
December 2020, IAE used thrust ratings to indicate when to perform the
inspections of the HPT 1st-stage disk or HPT 2nd-stage disk.
    The FAA reviewed IAE Non-Modification Service Bulletin (NMSB) No.
V2500-ENG-72-0713, Revision 1, dated January 26, 2021 (IAE NMSB V2500-
ENG-72-0713, Revision 1). This revised NMSB was published after the IAE
V2500 Customer Council Call in December 2020. The revised NMSB removed
references to thrust ratings in the Compliance section. Therefore, this
AD does not distinguish inspection intervals based on thrust ratings.

Request To Clarify Piece-Part Opportunity Inspection Requirements

    IAE requested clarification on whether an HPT 1st-stage disk and
HPT 2nd-stage disk with fewer than 100 flight cycles (FCs) since the
last piece-part fluorescent penetrant inspection (FPI) need to undergo
another FPI if the same parts were removed for the piece-part
opportunity USI in accordance with IAE NMSB V2500-ENG-72-0713, Revision
1. IAE reasoned that the V2500 Maintenance Scheduling section of the
Airworthiness Limitations Section (ALS) requires an FPI at each piece-
part opportunity.
    The FAA clarifies that when an HPT 1st-stage disk or an HPT 2nd-
stage disk is removed for piece-part inspection, the ALS of the
manufacturer's Instructions for Continued Airworthiness may require
additional inspections not required by this AD. The FAA refers the
commenter to the ALS, which indicates that additional inspections are
not required unless the part has more than

100 FCs since the last piece-part opportunity inspection, is damaged,
or is the cause for the removal of the engine. Engine removal for the
purposes of complying with this AD is not ``cause'' for engine removal
as stated in the ALS. The FAA added a note to paragraph (g)(1) of this
AD to clarify piece-part inspection requirements.

Request To Define Part Eligible for Installation

    Cathay requested that the FAA define ``part eligible for
installation'' in this AD.
    The FAA agrees and added a definition of a ``part eligible for
installation'' in this AD.

Request To Clarify Prohibition on Installation of Parts

    Cathay asked if there is a prohibition on the installation of parts
in this AD.
    The FAA notes that if a HPT 1st-stage disk or HPT 2nd-stage disk
does not pass the inspection required by paragraphs (g)(1) through (6)
of this AD, the HPT 1st-stage disk or 2nd-stage disk, as applicable,
must be removed from service. Any HPT 1st-stage disk or 2nd-stage disk
that passes the inspection is eligible for installation. As noted in an
earlier comment response, the FAA added the definition of a ``part
eligible for installation'' in this AD, which includes this
clarification.

Support for the AD

    An individual commenter expressed support for the AD as written.

Conclusion

    The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes and any
other changes described previously, this AD is adopted as proposed in
the NPRM. None of the changes will increase the economic burden on any
operator.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed IAE NMSB No. V2500-ENG-72-0713, Revision 1, dated
January 26, 2021. The NMSB identifies the affected HPT 1st-stage disks
and HPT 2nd-stage disks on IAE V2522-A5, V2524-A5, V2525-D5, V2527-A5,
V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, and V2533-A5 model turbofan
engines and specifies procedures for a USI of the HPT 1st-stage disk
and HPT 2nd-stage disk.
    The FAA also reviewed IAE NMSB No. V2500-E5-72-0015, dated December
15, 2020. The NMSB identifies the affected HPT 1st-stage disks and HPT
2nd-stage disks on IAE V2531-E5 model turbofan engines and specifies
procedures for a USI of the HPT 1st-stage disk and HPT 2nd-stage disk.
    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 ADDRESSES.

Costs of Compliance

    The FAA estimates that this AD affects 1,100 engines installed on
airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
USI the HPT 1st-stage disk and HPT 2nd- 20 work-hours x $85 per               $0          $1,700      $1,870,000
 stage disk.                             hour = $1,700.
----------------------------------------------------------------------------------------------------------------

    The FAA estimates the following costs to do any necessary
replacement that would be required based on the results of the
inspection. The agency has 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 the HPT 1st-stage disk or HPT 2nd-      0 work-hours x $85 per hour = $0        $300,000        $300,000
 stage disk.
----------------------------------------------------------------------------------------------------------------

    The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some of the costs of this AD
may be covered under warranty, thereby reducing the cost impact on
affected individuals.

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.
    The FAA is issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: General requirements.
Under that section, Congress charges the FAA with promoting safe flight
of civil aircraft in air commerce by prescribing regulations for
practices, methods, and procedures the Administrator finds necessary
for safety in air commerce. This regulation is within the scope of that
authority because it addresses an unsafe condition that is likely to
exist or develop on products identified in this rulemaking action.

Regulatory Findings

    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) Will not affect intrastate aviation in Alaska, and

    (3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

The 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:

2021-11-15 International Aero Engines AG: Amendment 39-21577; Docket
No. FAA-2021-0129; Project Identifier AD-2020-01597-E.

(a) Effective Date

    This airworthiness directive (AD) is effective July 13, 2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to International Aero Engines AG (IAE) V2522-A5,
V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-
A5, V2531-E5, and V2533-A5 model turbofan engines with an installed:
    (1) High-pressure turbine (HPT) 1st-stage disk, part number (P/
N) 2A5001, with a serial number (S/N) listed in Appendix A, Table 1,
of IAE Non-Modification Service Bulletin (NMSB) No. V2500-ENG-72-
0713, Revision 1, dated January 26, 2021 (IAE NMSB V2500-ENG-72-
0713, Revision 1) or IAE NMSB No. V2500-E5-72-0015, dated December
15, 2020 (IAE NMSB V2500-E5-72-0015); and/or
    (2) HPT 2nd-stage disk, P/N 2A4802, with an S/N listed in
Appendix A, Table 2, of IAE NMSB V2500-ENG-72-0713, Revision 1, or
IAE NMSB V2500-E5-72-0015.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by an analysis performed by the
manufacturer after an event involving an uncontained failure of a
HPT 1st-stage disk that resulted in high-energy debris penetrating
the engine cowling. The FAA is issuing this AD to prevent failure of
the HPT 1st-stage disk and HPT 2nd-stage disk. The unsafe condition,
if not addressed, could result in uncontained HPT disk failure,
damage to the engine, damage to the airplane, and loss of the
airplane.

(f) Compliance

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

(g) Required Actions

    (1) For IAE V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, and V2533-
A5 model turbofan engines with an HPT 1st-stage disk, P/N 2A5001,
with an S/N listed in Appendix A, Table 1, of IAE NMSB V2500-ENG-72-
0713, Revision 1, at the next engine shop visit after the effective
date of this AD or before the HPT 1st-stage disk has accumulated
3,200 flight cycles (FCs) since the effective date of this AD,
whichever occurs first, perform an ultrasonic inspection (USI) of
the HPT 1st-stage disk using the Accomplishment Instructions,
paragraph 6, of IAE NMSB V2500-ENG-72-0713, Revision 1.

    Note 1 to paragraph (g)(1): The USI required by paragraphs
(g)(1) through (6) of this AD requires the HPT 1st-stage disk and
HPT 2nd-stage disks to be removed from the engine allowing piece-
part opportunity inspections. Per the Airworthiness Limitations
Section of the manufacturer's Instructions for Continued
Airworthiness (ICAs), the additional inspections are not required
unless the part has more than 100 FCs since the last piece-part
opportunity inspection, is damaged, or is the cause for the removal
of the engine. Engine removal for the purposes of complying with
this AD is not ``cause'' for removal as stated in the ALS.

    (2) For IAE V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, and V2533-
A5 model turbofan engines with an HPT 2nd-stage disk, P/N 2A4802,
with an S/N listed in Appendix A, Table 2, of IAE NMSB V2500-ENG-72-
0713, Revision 1, at the next engine shop visit after the effective
date of this AD or before the HPT 2nd-stage disk has accumulated
3,200 FCs since the effective date of this AD, whichever occurs
first, perform a USI of the HPT 2nd-stage disk using the
Accomplishment Instructions, paragraph 7, of IAE NMSB V2500-ENG-72-
0713, Revision 1.
    (3) For IAE V2522-A5, V2524-A5, V2525-D5, and V2527-A5 model
turbofan engines with an HPT 1st-stage disk, P/N 2A5001, with an S/N
listed in Appendix A, Table 1, of IAE NMSB V2500-ENG-72-0713,
Revision 1, at the next HPT rotor and stator assembly (HPT module)
removal or before the HPT 1st-stage disk has accumulated 6,700 FCs
since the effective date of this AD, whichever occurs first, perform
a USI of the HPT 1st-stage disk using the Accomplishment
Instructions, paragraph 6, of IAE NMSB V2500-ENG-72-0713, Revision
1.
    (4) For IAE V2522-A5, V2524-A5, V2525-D5, and V2527-A5 model
turbofan engines with an HPT 2nd-stage disk, P/N 2A4802, with an S/N
listed in Appendix A, Table 2, of IAE NMSB V2500-ENG-72-0713,
Revision 1, at the next HPT module removal or before the HPT 2nd-
stage disk has accumulated 6,700 FCs since the effective date of
this AD, whichever occurs first, perform a USI of the HPT 2nd-stage
disk using the Accomplishment Instructions, paragraph 7, of IAE NMSB
V2500-ENG-72-0713, Revision 1.
    (5) For IAE V2531-E5 model turbofan engines with an HPT 1st-
stage disk, P/N 2A5001, with an S/N listed in Appendix A, Table 1,
of IAE NMSB V2500-E5-72-0015, at the next engine shop visit or
before the HPT 1st-stage disk has accumulated 3,200 FCs since the
effective date of this AD, whichever occurs first, perform a USI of
the HPT 1st-stage disk using the Accomplishment Instructions,
paragraph 6, of IAE NMSB V2500-E5-72-0015.
    (6) For IAE V2531-E5 model turbofan engines with an HPT 2nd-
stage disk, P/N 2A4802, with an S/N listed in Appendix A, Table 2,
of IAE NMSB V2500-E5-72-0015, at the next engine shop visit or
before the HPT 2nd-stage disk has accumulated 3,200 FCs since the
effective date of this AD, whichever occurs first, perform a USI of
the HPT 2nd-stage disk using the Accomplishment Instructions,
paragraph 7, of IAE NMSB V2500-E5-72-0015.
    (7) If, during the USI required by paragraphs (g)(1) through (6)
of this AD, a HPT 1st-stage disk or HPT 2nd-stage disk does not pass
the inspection as specified in the Accomplishment Instructions,
paragraph 8., of IAE NMSB V2500-ENG-72-0713, Revision 1, or IAE NMSB
V2500-E5-72-0015, as applicable, before further flight, remove the
HPT 1st-stage disk or 2nd-stage disk, as applicable, from service
and replace with a part eligible for installation.

(h) Definition

    (1) For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance involving the
separation of pairs of major mating engine flanges, H-P, except for
the following situations, which do not constitute an engine shop
visit.
    (i) Separation of engine flanges solely for the purposes of
transportation without subsequent engine maintenance.
    (ii) Engine removal for the purpose of performing field
maintenance activities at a maintenance facility in lieu of
performing them on-wing.
    (2) For the purpose for this AD, a ``part eligible for
installation'' is:
    (i) An HPT 1st-stage disk or HPT 2nd-stage disk listed in
Appendix A, Tables 1 and 2, of IAE NMSB V2500-ENG-72-0713, Revision
1, or Appendix A, Tables 1 and 2, of IAE NMSB V2500-E5-72-0015, that
passed the USI required by paragraphs (g)(1) through (6) of this AD;
or
    (ii) An HPT 1st-stage disk or HPT 2nd-stage disk that is not
listed in Appendix A, Tables 1 and 2, of IAE NMSB V2500-ENG-72-0713,
Revision 1, or Appendix A, Tables 1 and 2, of IAE NMSB V2500-E5-72-
0015.

(i) 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 Related Information. You may
email your request to<EMAIL_ADDRESS>    (2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.

(j) Related Information

    For more information about this AD, contact Nicholas Paine,
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone:<PHONE_NUMBER>; fax:<PHONE_NUMBER>;
email<EMAIL_ADDRESS>
(k) 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) International Aero Engines (IAE) Non-Modification Service
Bulletin (NMSB) No. V2500-ENG-72-0713, Revision 1, dated January 26,
2021.
    (ii) IAE NMSB No. V2500-E5-72-0015, dated December 15, 2020.
    (3) For IAE service information identified in this AD, contact
International Aero Engines AG, 400 Main Street, East Hartford, CT
06118; phone:<PHONE_NUMBER>; email<EMAIL_ADDRESS>website:
http://fleetcare.pw.utc.com.
    (4) You may view this service information at FAA, Airworthiness
Products Section, Operational Safety Branch, 1200 District Avenue,
Burlington, MA 01803. For information on the availability of this
material at the FAA, call<PHONE_NUMBER>.
    (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, email<EMAIL_ADDRESS>or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on May 19, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-11960 Filed 6-7-21; 8:45 am]
BILLING CODE 4910-13-P