ML072260428

Inservice Inspection Program - Owners Activity Report for Refueling Outage 11

ML072260428
Person / Time
Site:	Millstone
Issue date:	08/03/2007
From:	Price J Dominion, Dominion Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
07-0530
Download: ML072260428 (13)

Text

FDominion Dominion Nuclear Connecticut, Inc.

Millstone Power Station Rope Ferry Road, Waterford, CT 06385 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 AUG 0 3 2007 Serial No.

NSSL/RWM Docket No.

License No.

07-0530 R1 50-423 NPF-49 DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION UNIT 3 INSERVICE INSPECTION PROGRAM - OWNER'S ACTIVITY REPORT Dominion Nuclear Connecticut, Inc. (DNC), hereby submits the American Society of Mechanical Engineers (ASME),Section XI, Form OAR-i, Owner's Activity Report for Refueling Outage 11 for Millstone Power Station Unit 3.

The enclosure is in accordance with the requirements of Code Case N-532.

If you have any questions or require additional information, please contact Mr. David W. Dodson at (860) 447-1791, extension 2346.

Very truly yours, J.

Si i Price ice President - Millstone Enclosure(s):

1. Millstone Power Station Unit 3, Owner's Activity Report for Refueling Outage 11 Commitments made in this letter: None.

17-h PILO-

Serial No. 07-0530 Owner's Activity Report Page 2 of 2 cc:

U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Mr. J. D. Hughey NRC Project Manager - Millstone Power Station U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 8 B3 Rockville, MD 20852-2738 Mr. R. I. Treadway NRC Senior Resident Inspector Millstone Power Station

Serial No.

07-0530 Docket No.

50-423 ENCLOSURE 1 INSERVICE INSPECTION PROGRAM - OWNER'S ACTIVITY REPORT REFUELING OUTAGE 11 DOMINION NUCLEAR CONNECTICUT, INC. (DNC)

MILLSTONE POWER STATION UNIT 3

Page 1 of 10

• MILLSTONE POWER STATION UNIT NO. 3 OWNER'S ACTIVITY REPORT REFUELING OUTAGE 11 Revision 0 Contents:

OAR-I Report Number: MP-3, 3RO1 1 Table 1:

Abstract of Examinations and Tests Table 2:

Items With Flaws or Relevant Conditions That Required Evaluation for Continued Service.

Table 3:

Abstract of Repairs, Replacements, or Corrective Measures Required for Continued Service Prepared By:

Reviewed By:

IISI Program Coor *tor A

orizedluclear Inserv'ice Inspector Date:

1 Date:

Page 2 of 10 FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number MP3-3R01 1 Owner Dominion Nuclear Connecticut, Rope Ferry Road Waterford Connecticut 06385 (Name and Aggress el Owner)

Plant Millstone Nuclear Power Station, Rope Ferry Road Waterford Connecticut (Name and A ddress ol C-cuant)

Unit Number 3

Commercial Service Date April 23, 1986 Refueling Outage Number 11 (it appircable)

Current Inspection Interval 2nd (lst. 2nd, 3rd,)

Current Inspection Period 3rd (0st. 2nd. 3rd. 4th, otler)

Edition and Addenda of Section XI Applicable to the Inspection Plan 1989 Edition, No Addenda Subsection IWE/IWL - 1998 Edition, No Addenda Date and Revision of Inspection Plan January 15, 2005, Revision 01, Change 6.

Subsection IWE/IWL - May 23, 2006, Revision 2 Edition and Addenda of Section Xl Applicable to Repairs and replacements, if Different 1998 Edition, No Addenda CERTIFICATE OF CONFORMANCE I certify that the statements made in this Owner's Activity Report are correct, and that the examinations, tests, repairs, replacements, evaluations and corrective measures represented by this report conform to the requirements of Section XI.

Certificate of Au orization No.

N/A Expiration Date N/A Sind*

u r*

(IT applicaDle)

Signed rR'***

"P*

,.**,oorel;feq~agor-*r Date

-7/1924/Q 7 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 Connecticut and employed by HSB CT of Hartford, Connecticut have inspected the items described in this Owner's Activity Report, during the' eriod October 27, 2005 to May 19, 2007, and state to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations, tests, repairs, replacements, evaluations and corrective measures described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

CCommissions "O/r..ai" A"t¢

,,,*.tMl I%;n'W-.

/

-17

Page 3 of 10 Table 1 ABSTRACT OF EXAMINATIONS AND TESTS (See Note 1)

Total Total Examinations Examinations Total Examinations Total Examinations Examination Required for Credited for Credited (%)

Credited (%) To Date Category The Interval This Period For The Period for The Interval Remarks (Note 8)

B-A 24 19 79 100 Note 2 B-B 3

1 33 100 B-D 44 22 50 91 Item numbers B3.90 and B3.100 utilize Code Case N-521 which allows deferral to the end of the Interval.

B-E 2

0 0

0 See Note 2 B-F 4

0 0

100 See Note 3 B-G-1 221 92 42 100 B-G-2 61 28 46 100 B-H 9

0 0

100 Relief Request IR-2-4 granted to perform all (9) examinations in one period.

B-J 60 0

0 100 See Note 3 B-K-1 9

4 44 100 B-L-1 N/A N/A N/A N/A There are no components under this Category at Millstone Unit 3.

B-L-2 0

0 0

0 Required only if disassembled during maintenance activity.

B-M-1 N/A N/A N/A N/A There are no components under this Category at Millstone Unit 3.

B-M-2 5

1 20 100 Required only if disassembled during maintenance activity.

B-N-1 3

1 33 100 100% are examined each Inspection period.

(i/Period)

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B-N-2 7

7 100 100 See Note 2

Page 4 of 10 Table 1 ABSTRACT OF EXAMINATIONS AND TESTS (see Note 1)

Total Total Examinations Examinations Total Examinations Total Examinations Examination Required for Credited for Credited (%)

Credited (%) To Date Category The Interval This Period For The Period for The Interval Remarks (Note 8)

B-N-3 2

2 100 100 See Note 2 B-O 4

0 0

100 See Note 2 B-P 37 12 32 97 Required for examination each refueling outage. Number and percentage are based on the number of refueling outages anticipated during the Interval.

C-A 6

3 50 100 C-B 13 3

23 85 See Note 6 C-C 39 16 41 97 C-D 2

1 50 100 See Note 4 C-F-1 156 61 39 99 C-F-2 37 12 32 95 C-G 11 3

27 82 C-H 86 23 27 90 See Note 6 D-A 30 8

27 90 See Note 6 D-B 123 42 34 91 See Note 6 D-C 4

0 0

75 See Note 6 E-A 105 35 33 100 100% of the items are examined each (35/Period)

Inspection Period. The Total Examinations Required reflects the total for all (3) Periods.

E-C 45 23 51 100 See Note 7 (22/2nd Period)

(23/ 3r Period)

L-A 34 0

0 100 See Note 5

Page 5 of 10 Table 1 ABSTRACT OF EXAMINATIONS AND TESTS (see Note 1)

Total Total Examinations Examinations Total Examinations Total Examinations Examination Required for Credited for Credited (%)

Credited (%) To Date Category The Interval This Period For The Period for The Interval Remarks (Note 8)

L-B N/A N/A N/A N/A There are no components under this Category at Millstone Unit 3.

F-A 262 99 37 99 R-A 91 35 38 93 See Note 9 Notes:

1. This report represents a summary of the Inservice Inspection activities performed at Dominion Nuclear Connecticut's Millstone Unit 3 power station during the Spring of 2007 refueling outage (RFO1 1). This is the second refueling outage of the third inspection period of the second inspection interval.

2.

For this Examination Category, deferral of examinations to later in the interval is permissible, in accordance with ASME Section XI, IWB-2500-1

3.

Examination Category B-F and B-J have been replaced with the implementation of the Risk Informed inspection program for Class 1 piping Examination Category R-A. The number of examinations listed under the Total Examinations Required for the Interval for these categories reflect the number of examinations completed meeting the percentage requirements for the first inspection period.

4.

Percentage requirements in this category cannot be met for each period due to only 2 items in the category.

5.

Examination frequency for this Category is once every five years.

6.

This examination Category includes VT-2 (Pressure Test) inspection items required to be completed once each period.

7.

This Category reflects locations identified during the 1st and 2nd periods that are required for examination during the 2nd and 3rd periods.

8.

Relief requests shall be submitted for those examinations in which limitations exist such that at least 90% examination coverage could not be obtained.

9.

Category increased by an additional (8) welds based on the Class 1 Risk Informed Program period review.

Page 6 of 10 Table 2 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Flaw Characterization Flaw or relevant Examination Item Component Item Description (IWA-3300)

Condition Found Category Number ID During Scheduled Section XI Examination or Test (Yes or No)

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SFC*V982 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve body to bonnet bolting Leakage at bolted connection. Evaluated using the YES 3RSS*V026 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve body to bonnet bolting Leakage at bolted connection. Evaluated using the YES 3SIL*AV8872A criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SIL*V006 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SIL*V012 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SIL*VO17 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SIL*VO15 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3SIL*V987 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*AV8036D criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS *AV8037A criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*AV8037B criteria of Code Case N-566-1.

Page 7 of 10 Table 2 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Flaw Characterization Flaw or relevant Examination Item Component Item Description (IWA-3300)

Condition Found Category Number ID During Scheduled Section XI Examination or Test (Yes or No)

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*AV8037C criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*AV8037D criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*MV8003A criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*MV8003C criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*MV8003D criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*LCV459 criteria of Code Case N-566-1.

B-P B 15.70 Valve Flange bolted connection Leakage at bolted connection. Evaluated using the YES 3RCS*V086 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3CHS*CV8152 criteria of Code Case N-566-1.

B-P B 15.70 Valve Valve bolted connection Leakage at bolted connection. Evaluated using the YES 3RHS*MV8701A criteria of Code Case N-566-1.

Page 8 of 10 Table 3 ABSTRACT OF REPAIRS, REPLACEMENTS, OR CORRECTIVE REQUIRED FOR CONTINUED SERVICE MEASURES Flaw or relevant Condition Found

Repair, During Replacement, Description Scheduled Repair/

Code or Corrective Item Description of Work Section XI Date Replacement Plan Class Measure Examination or Completed Number Test (Yes/No) 2 Repair Mainsteam piping Blend out Yes 05/08/07 M3-07-05800 Line Number 3MSS-unacceptable base 008-22-2 metal indication found during surface examination of weld MSS-30-FW-6 3

Replacement Service Water Line Replace portion of line No 01/25/2006 M3-06-01083 3SWP-1 50-105-3 3

Replacement Service Water Line Replace portion of line No 02/16/2006 M3-06-02088 3SWP-1 50-105-3 3

Replacement Heat Exchanger Weld repair channel No 03/15/2006 M3-06-02978 3CCP*E1C head flange 2

Replacement Feedwater Line Replace portion of line No 05/29/2007 M3-05-15316 3FWS-016-127-2 2

Replacement Feedwater Line Replace portion of line No 05/29/2007 M3-05-09903 3FWS-016-124-2 2

Replacement Feedwater Line Replace portion of line No 05/29/2007 M3-05-14115 3FWS-016-126-2 3

Replacement Service Water Line Replace portion of line No 06/22/2006 M3-06-06588 3SWP-003-247-3 3

Repair Service Water line Repair Flange leak No 05/29/2006 M3-06-06133 I

3SWP-003-247-3 I

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Page 9 of 10 Flaw or relevant Condition Found

Repair, During Scheduled Replacement, or Description Section XI Repair/

Code Corrective Item Description of Work Examination or Date Replacement Plan Class Measure Test (Yes/No)

Completed Number

3.

Replacement Service Water Line Replace portion of line No 08/05/2006 M3-06-08717 3SWP-1 50-106-3 3

Replacement Service Water Line Replace portion of line No 07/18/2006 M3-06-07456 3SWP-003-86-3 3

Replacement Service Water Line Replace portion of line No 04/20/2007 M3-06-06512 3SWP-003-324-3 3

Replacement Auxiliary Feedwater Replace restricting No 10/19/2006 M3-06-11331 3FWA*RO24A orifice 3

Replacement Service Water Line Replace pipe piece No 12/05/2006 M3-06-12770 3SWP-1 50-71-3 3

Replacement Service Water Line Replace portion of line No 01/12/2007 M3-03-13265 3SWP-002-400-3 3

Replacement Service Water Line Replace portion of line No 02/21/2007 M3-07-00574 3SWP-002-402-3 at valve 3SWP*V697 3

Replacement Service Water Line Replace portion of line No 05/23/2007 M3-07-00573 3SWP-1 50-71-3 at valve 3SWP*V698 1

Repair Pressurizer surge Machine and perform No 04/30/2007 M3-06-12833 nozzle to safe-end, weld overlay per dissimilar metal weld approved Relief 03-X-5551-X-T Request IR-2-47 1

Repair Pressurizer safety "A" Machine and perform No 04/30/2007 M3-06-12834 nozzle to safe-end, weld overlay per dissimilar metal weld approved Relief 03-X-5644-A-T Request IR-2-47 1

Repair Pressurizer safety "B" Machine and perform No 04/30/2007 M3-06-12835 nozzle to safe-end, weld overlay per dissimilar metal weld approved Relief 03-X-5648-B-T Request IR-2-47

Page 10 of 10 Flaw or relevant Condition Found

Repair, During Scheduled Replacement, or Description Section XI Repair/

Code Corrective Item Description of Work Examination or Date Replacement Plan Class Measure Test (Yes/No)

Completed Number 1

Repair Pressurizer safety "C" Machine and perform No 04/30/2007 M3-06-12836 nozzle to safe-end, weld overlay per dissimilar metal weld approved Relief 03-X-5649-C-T Request IR-2-47 1

Repair Pressurizer relief Machine and perform No 04/30/2007 M3-06-12837 nozzle to safe-end, weld overlay per dissimilar metal weld approved Relief 03-X-5650-D-T Request IR-2-47 2

Replacement RSS Valve Replace encapsulating No 04/23/2007 M3-07-03295 3RSS*MOV23C flange cap screws 2

Replacement RSS Valve Replace encapsulating No 04/23/2007 M3-07-03293 3RSS*MOV23D flange cap screws