ML16216A149

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Nine Mile Point, Unit 2, Third Inservice Inspection Interval, Second Inservice Inspection Period 2016 Owner'S Activity Report for RFO-15 Inservice Examinations
ML16216A149
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 07/25/2016
From: Sterio A D
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NMP2L 2630
Download: ML16216A149 (13)
v • d • e


Text

NMP2L 2630 July 25, 2016 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Nine Mile Point Nuclear Station, Unit 2 Renewed Facility Operating License No. NPF-69 Docket No. 50-41 O 1 O CFR 50.55a

Subject:

Third lnservice Inspection

Interval, Second lnservice Inspection Period 2016 Owner's Activity Report for RF0-15 lnservice Examinations Pursuant to 1 O CFR 50.55a, Nine Mile Point Nuclear Station, LLC (NMPNS) hereby submits the attached Third lnservice Inspection
Interval, Third lnservice Inspection Period, 2016 Owner's Activity Report for RF0-15 lnservice Examinations, for Nine Mile Point Unit 2 (NMP2). The report is contained in Attachment 1 to this letter, and summarizes the results of examinations performed during the second refueling outage (RF0-15) of the Third lnservice Inspection Period of the Third Ten-Year Inspection Interval (April 5, 2015 through June 15, 2018). This activity report meets the requirements of the American Society of Mechanical Engineers (ASME), Code Case N-532-4, "Alternative Requirements to Repair and Replacement Documentation Requirements and lnservice Summary Report Preparation and Submission as Required by IWA-4000 and IWA-6000,Section XI, Division 1," as approved for use by Regulatory Guide 1.147, "lnservice Inspection Code Case Acceptability, ASME Section XI, Division 1 ." There are no regulatory commitments contained in this letter. Should you have any questions regarding the information in this submittal, please contact Dennis Moore, Regulatory Assurance
Manager, at (315) 349-5219.

Sincerely, Alexander D. Sterio Engineering

Director, Nine Mile Point Nuclear Station Exelon Generation
Company, LLC ADS/KJK

Attachment:

Third lnservice Inspection

Interval, Third lnservice Inspection Period 2016 Owner's Activity Report for RF0-15 lnservice Examinations NMP2 Owner's Activity Report for RF0-15 July 25, 2016 Page 2 cc: Regional Administrator, Region I, USNRC Project Manager, USNRC Resident Inspector, USNRC Attachment Third lnservice Inspection
Interval, Third lnservice Inspection Period 2016 Owner's Activity Report for RF0-15 lnservice Examinations THIRD INSERVICE INSPECTION INTERVAL THIRD INSERVICE INSPECTION PERIOD 2016 OWNER'S ACTIVITY REPORT FOR RF015 INSERVICE EXAMINATIONS Prepared For Nine Mile Point Nuclear Station Unit 2 P.O. Box 63, Lake Road Lycoming, New York 13093 Commercial Service Date: April 5, 1988 NRG Docket Number: 50-410 Document Number: NMP2-0AR-003-016 Date: July 15, 2016 Reviewed by: t(2.__ '7 /t q (lt) Todd L. Davis -NMPNS Site Back Up ISi & GISI Program Owner Reviewedby:

7/;r/i6 . Carlo McClay -NMPNSRf)air&

Replacement Program Owner Approvedby:

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  • Faivus. -Manager Site Engineering Programs

.

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

-.. ** ExelonG1::inerntion THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 2 of 10 TABLE OF CONTENTS Table of Contents

......................................................................................................................................................

2 Record of Revision

.....................................................................................................................................................

3 Abstract

......................................................................................................................................................................

4 Form OAR-1 Owner's Activity Report for ASME Section XI Inspection

& Testing Plans ........................................

6 Table 1 Items with Flaws or Relevant Conditions that Required Evaluation for Continued Service ........................

7 Table 2 Abstract of Repairs, Replacements, or Corrective Measures Required for Continued Service ..................

8

-*____, ,,.;::;.**

Exelon Generation.

00 Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16 THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 3 of 10 Entire Document Initial issue of Owner's Activity Report for ASME Section XI lnservice Inspection, Containment lnservice Examinations, and Pressure Tests and Alternate Inspection in accordance with the requirements of ASME Code Case N-532-4.

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

-..:=:.

  • Exelon Generation THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 4 of 10 ABSTRACT ASME Section XI Code Case N-532-4 requires submission of the Owner's Activity Report to the regulatory and enforcement authorities having jurisdiction at the plant site within 90 calendar days of the completion of each refueling outage. This Owner's Activity Report summarizes the results of the Nine Mile Point Nuclear Station (NMPNS),

Unit 2, American Society of Mechanical Engineers (ASME)Section XI In-service Inspection, Risk-Informed Inspection, Containment In-service Examinations, and Pressure Tests performed since the last report dated May 31, 2014 through Refueling Outage Fifteen (RF015) ending May 5, 2016. RF015 is the first of two outages scheduled during the Third In-service Inspection Period that started on April 5, 2015 and is scheduled to end on June 15, 2018. The attached Table 1 and 2 include flaws and conditions (those meeting the requirements of Code Case N-532-4) identified since the last Owner's Activity Report following Refueling Outage RF0-14. As an alternate to the requirements of the ASME, Boiler and Pressure Vessel Code (B&PVC),

Section XI, Article IWA-6000, NMPNS is implementing ASME Code Case N-532-4, Alternative Requirements to Repair and Replacement Documentation Requirements and In-service Summary Report Preparation and Submission as Required by IWA-4000 and IWA-6000,Section XI, Division 1". Regulatory Guide 1.147, Revision 15, approved ASME Code Case N-532-4 for use. This Report complies with the requirements of Code Case N-532-4 and the conditions identified in RG 1.147. OWNER'S ACTIVITY REPORTS -FORM OAR-1 Owner Activity Report Form OAR-1 was prepared and certified upon completion of the Nine Mile Point Unit 2, 2016 refueling outage (RF015) examination activity in accordance with the following NMPNS inspection plans and schedules:

  • NMP2-ISl-003, Third Ten-Year In-service Inspection Plan and Implementing
Schedule, (includes the Alternate Risk-Informed Inspection Program)
  • NMP2-CISl-002, Second Containment In-service Inspection Plan and Implementing Schedule.
  • NMP2-PT-008, lnservice Pressure Testing Program Plan In addition to the Owner's Activity Report, Form OAR-1, the following Tables are also included:
a. Items with Flaws or Relevant Conditions that Require Evaluation for Continued
Service, Table 1, provides a listing of item(s) with flaws or relevant conditions that required evaluation to determine acceptability for continued
service, whether or not the flaw or relevant condition was discovered during a scheduled examination or test, and provides such information as Examination
Category, Examination Item Number, Item Description, Flaw Characterization (as required by IWA-3300).

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

-* Exelon Gi:neration THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 5 of 10 b. Abstract of Repairs, Replacements or Corrective Measures Required for Continued

Service, Table 2, identifies those items containing flaws or relevant conditions that exceeded Division 1 acceptance criteria.

This information is required even if the discovery of the flaw or relevant condition that necessitated the repair/replacement activity did not result from an examination or test required by Division

1. If the acceptance criterion for a particular item is not specified in Division 1, the provisions of IWA-3100(b) shall be used to determine which repair/replacement activities are required to be included in the abstract.

In accordance with ASME Section XI, IWB-2412(a),

IWC-2412, IWD-2412 IWE-2412(a),

and IWF-2410(b) and with the exception of the examinations that may be deferred until the end of the inspection interval as specified in Table IWB-2500-1, IWC-2500-1*,

IWD-2500-1, IWF-2500-1 and IWE-2500-1, including those examinations which NMPNS has requested and received approval in the form of proposed alternatives in accordance with 1 OCFR50.55a(a)(3),

the required examinations in each examination category have been completed for the First In-service Inspection Period in accordance with Tables IWB-2412-1, IWC-2412-1, IWD-2412-1, IWE-2412-1, and IWF-2410-2.

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16 Exelon GenETEH ion THIRD INSERVICE INSPECTION INTERVAL Rev. 2016 OWNER'S ACTIVITY REPORT FOR INSERVICE EXAMINATIONS FORM OAR-1 OWNER'S ACTIVITY REPORT Date: Page As required by the provisions of the ASME Code Case N-532-4 Report Number'-:

__

____ _ 00 July 15, 2016 6 of 10 Plant (Name and Address of Plant) Plant Unit __ 2 __ _ Commercial Service Date April 5. 1988 Refueling Outage Number RF015 Current Inspection Interval 3rd Interval for ISi & PT. 2nd Interval for GISI (1st, 2nd, 3rd, 4th, Other) April 5. 2008 to June 15, 2018 Current Inspection Period __ __,_T_,_,h'-'-i rd=--'-'-1

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(1st, 2nd, 3rd) Edition and Addenda of Section XI applicable to the Inspection Plans Date and Revision of Inspection Plans NMP2-ISl-003, Revision 04, May 30, 2016 (ISi), NMP2-CISl-002, Revision 03, May 30, 2016 (Containment ISi), NMP2-PT-008 Revision 06, July 2, 2014 (Pressure Test) Edition and Addenda of ASME Section XI applicable to Repair/Replacement activities, if different than the Inspection Plan N/A (same Code Edition/Addenda)

(if applicable)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of RF015 conform to the requirements of Section XI. (refueling outage number) Date CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of PA and employed by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut have inspected the items described in this Owner's Activity Report and state that to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of XI. By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any mann for any personal injury or property damage or a loss of any kind arising from or connnted with this rsp tioi;i. /) Ll '1 :;> l? tL

,J J 9 'f' J-f A ,II/ :i:;:-,g rn Cl'-<J r Inspector's Si ture National Board, State, Province, and Endorsements Date Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

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THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 7 of 10 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE As required by the provisions of the ASME Code Case N-532-4 EVALUATION DESCRIPTION EXAMINATION ITEM ITEM CATEGORY NUMBER DESCRIPTION B-P 815.10 Pressure Retaining The ASME Class 1 end of refueling outage Components (Bolted vessel leakage test identified leakage Mechanical exceeding the level that requires a Design Connections)

Engineering Evaluation in accordance with station procedures.

Station procedures require Design Engineering Evaluation for fil1Y leakage originating from a bolted connection.

Condition Report AR-02664007 documents an undesirable condition associated with 88 drops per minute leakage from the ASME Class 1 valve 2RCS*V1758 bolted flange connection.

A Design Engineering Evaluation concludes that the identified leakage is acceptable as-is for continued service.

Work Order C92721531 has been generated to address this condition.

Condition Report AR-02664000 documents an undesirable condition associated with 60 drops per minute leakage from the ASME Class 1 valve 2RCS*V177 A bolted flange connection.

A Design Engineering Evaluation concludes that the identified leakage is acceptable as-is for continued service.

Valve was tightened and leakage was reduced to 3.75 dpm. Work Order C92721531 has been generated to address this condition.

Condition Report AR-02664062 documents an undesirable condition associated with leakage from Control Rod Drive bolted flange connections.

The as-found leakage ranged from 20 drops per minute to 360 drops per minute. The as-left leakage was reduced significantly following scramming of control rod drives. A Design Engineering Evaluation concludes that the identified leakage is acceptable as-is for continued service.

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

-,,,::.c Exelon Ion THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 8 of 10 EXAMINATION ITEM ITEM EVALUATION DESCRIPTION CATEGORY NUMBER DESCRIPTION F-A F1 .10A Sway Strut Condition Report IR 02656786 documents a Lisega strut 21CS-PSST263A 1 which had a loose jam nut. Work Order C93397358 has been generated to address this condition.

D-A 01.20 Integrally Welded Condition Report AR-02658592 documents an Attachment undesirable condition associated with heavy pitting of 2SWQ-21-21-FW304.

A Design Engineering Evaluation concludes that the identified pitting is acceptable as-is for continued service.

Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

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THIRD INSERVICE INSPECTION INTERVAL Rev. 00 CODE CLASS 2 3 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 9 of 10 TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE As required by the provisions of the ASME Code Case N-532-4 REPAIR/REPLACE DESCRIPTION MENT ITEM OF DATE PLAN NUMBER DESCRIPTION WORK COMPLETED 2CSL*P1 Replace 1 2-1/4 IN. -8N-2A 4/30/2016 C93398303 10"LG. Stud Replace 6" SA 105 Sch. 40 4/30/2016 2-SWP-006-107-3 Elbow and 6" SA 106 GR B C93399550 Sch. 40.pipe Nine Mile Point Nuclear Station Unit 2 NMP2-0AR-003-16

-... ExelonGeneraUon.

THIRD INSERVICE INSPECTION INTERVAL Rev. 00 2016 OWNER'S ACTIVITY REPORT FOR Date: July 15, 2016 INSERVICE EXAMINATIONS Page 10 of 10 END OF INSERVICE INSPECTION OWNER'S ACTIVITY REPORT FOR REFUELING OUTAGE FIFTEEN (RF015)

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