ML12207A073

Owners Activity Report (Form OAR-1) for Refueling Outage N1R22

ML12207A073
Person / Time
Site:	North Anna
Issue date:	07/18/2012
From:	Mladen F Virginia Electric & Power Co (VEPCO)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
12-477
Download: ML12207A073 (7)

Text

VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 July 18, 2012 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Serial No.:

NAPS/JHL:

Docket No.:

License No.:

12-477 RO 50-338 NPF-4 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION)

NORTH ANNA POWER STATION UNIT I OWNER'S ACTIVITY REPORT In accordance with the requirements of American Society of Mechanical Engineers (ASME) Code Case N-532-4, enclosed is the Owner's Activity Report (Form OAR-i), for refueling outage N1 R22. This report is for the second refueling outage of the first period of the fourth inspection interval.

Should you have any questions regarding.his submittal, please contact Mr. Donald R.

Taylor at (540) 894-2616.

Very truly yours, F. Mladen Director - Nuclear Station Safety and Licensing Commitments made in this letter: None Attachment

-AD4-

cc:

U.S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Avenue, NE, Suite 1200 Atlanta, Georgia 30303-1257 NRC Senior Resident Inspector North Anna Power Station Mr. J. E. Reasor, Jr.

Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd.

Suite 300 Glen Allen, Virginia 23060 Dr. V. Sreenivas NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 0-8 G9A Rockville, MD 20852-2738 Ms. K. R. Cotton NRC Project Manager U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 0-8 G9A Rockville, MD 20852-2738 Mr. M. M. Grace Authorized Nuclear Inspector North Anna Power Station

Attachment Owner's Activity Reports for North Anna Unit I Refueling Outage N1R22 - First Period of the Fourth ISI Interval North Anna Power Station Virginia Electric and Power Company

Dominion-Form OAR-I, Owner's Activity Report FF7 I _10 TAHEN£ aeIo Report Number: NIR22 (Unit 1, 4th Interval, 14 Period)

Plant: North Anna Power Station Unit No.

1 (if applicable)

Commercial service date: 6/6/1978 Refueling outage no. NIR22 Current inspection interval: t (May 1, 2009 - April 30, 2019)

(I S, 2n, 3m, 4e, other)

Current inspection period: 1 t (May 1. 2009 -April 30,. 2012)

(1 s5, 2nG, Vr, 4u)

Edition and Addenda of Section XI applicable to the inspection plans: 2004 Edition with No Addenda Date and revision of Inspection plans: Revision 3. February 2012 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans KllA Code Cases used: N-432-1. N-460, N-504-4, N-526, N-532-4. N-552, N-566-2. N-586-1. N-597-2, N-613-1.

N-619, N-624, N-638-4. N-641, N-648-1. N-651, N-658, N-661-1. N-663, N-683, N-686-1. N-695, N-696, N-706-1. N-722-1. N-729-1,and N-770-1 (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 NI R22 conform to the requirements of Section XA.

(refueling outage number) e wner or Owners Designee, Title D

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 Viminia and employed by HSB GS of Hartford, CT 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 Section XA.

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 manner for any personal injury or property damage or a loss of any kind arising from or conn~e,$t npeto.

co_____._

..______nn__e_,__

Commissions NB 9531-lS-N-,-C / VA 424-R Inspector's gignature National Board, State, Province and Endorsements Date /Z 2

.Oi z

Form No. 729595 (Aug 2009)

Dominion-Form OAR-1, Owner's Activity Report F-LA-S10 ATAHMN 1

ae2o Table I Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service Examination Item Description Evaluation Description Category and Item Number Snubber 1-RC-HSS-838 Evaluate per CR469820 for F-A / F1.10D loose jam nut - does not Summary # N1.F1.10.219 impact design function.

Snubber, 1-RC-HSS-1 12 Evaluate per CR470000 for F-A / F1.20D little off axis movement due to adjacent 2" CC line. No Summary # N1.F1.10.487 functional issues found.

Snubber, 1-RC-HSS-102 Evaluate per CR470542 for cold piston setting out of F-A / Fl.1OD tolerance. Found excess margin built in, able to Summary #NI.F1.10.505 perform design function.

Spring hanger SH-37 Evaluate per CR443144 for F-A / FI.1OC loose bolt on riser clamp.

Minor deficiency with no Summary #N1.F1.10.455 impact on design function.

Spring hanger A-3.1 Evaluate per CR443359 for F-A / FI.30A out of tolerance spring setting.

Still within working range and Summary #N1.F1.30.118 meeting design function.

Snubber HSS-818 Evaluate per CR470675 for F-A / Fl.1OD misalignment. Drawing change to accept given Summary #N1..F1.10.307 alignment.

Snubber HSS-1 15B Evaluate per CR466039 for F-A / F1.1OD rejectable conditions all found acceptable. Meeting design Summary #N1.F1.10.465 function.

Snubber HSS-1 19A Evaluate per CR466042 for F-A / F1.10D contact with insulation - found Summary #N1.F1.10.467 meeting design function.

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Form No. 729595 (Aug 2009)

Drominion-Form OAR-I, Owner's Activity Report ERA-S-0 ATAHMN

1.

Pag 3f Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Code Wor Date Repair/Replacement Class Item Description Description of Completed Plan Number 1-CE-EH Repair damaged bolt MC ACCESS chairs on equipment 05/03/12 2010-248 hatch.

Replace valve due to 3

1-SW-639 pinhole leak in valve 12/14/10 2010-252 body.

1 1-RC-MOV-1535 Replace bolting due to 12/14/11 2011-089 contact with boric acid.

3 1-HV-E-6B-1 Repair heat exchanger 09/18/11 2011-094 tube leak.

1 1 -RC-HSS-818 Replace snubber due 09/12/11 2011-093 to low fluid.

cc 1-BLD-BLD-RC-Repair containment 09/28/11 2011-097 BLDG concrete.

2 1-MS-HSS-211B Replace snubber due 09/23/11 2011-103 to low fluid.

2 1-MS-HSS-200 Replace snubber due 09/21/11 2011-105 to low fluid.

1 1-CH-HSS-808 Replace snubber due 09/19/11 2011-106 to low fluid.

Install clamp per 3

1-CC-845 Appendix IX to stop 11/09/11 2011-166 leak at socket weld.

3 1-HV-E-6A Repair pinhole leak in 11/16/11 2011-167 tubing.

3 2"-CH-41-153A-Replace piping due to 03/23/12 2011-175 Q3 through wall leak.

1 1-SI-86 Replace bolting due to 04/16/12 2012-081 contact with boric acid.

1 1-RC-HSS-827 Replace snubber.

04/28/12 2012-089 Form No. 72955 (Aug 2009)

4.

i.,

Q-Dominion-Form OAR-I, Owner's Activity Report E-AA-S10 ATTACMN

1.

Page 4f Code Class Item Description Description of Work Date Completed Repair/Replacement Plan Number Repair/Seal of 'B' SIG 1-RC-E-1B Nozzle-to-Safe End 05/31/12 2012-090 DM Weld Repair of "B" S/G 1 -RC-E-1B Nozzle-to-Safe End 04/06/12 2012-095 Weld 1-RC-MOV-1595 Replace bolting due to 05/10/12 2012-112 degraded threads.

Form No. 729595 (Aug 2009)