ML20148E700
| ML20148E700 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/27/1997 |
| From: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20148E704 | List: |
| References | |
| REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR 97-246, GL-87-02, GL-87-2, NUDOCS 9706030226 | |
| Download: ML20148E700 (3) | |
Text
.
m_
.___.-m
)
4 e
YlRGINIA Eircraic AND POWER CONH%NY Ricinuos >, Vino Nir 2326i May 27, 1997 United States Nuclear Regulatory Commission Serial No.97-246 Attention: Document Control Desk NES/NLOS/ETS Washington, D.C. 20555 Docket Nos. 50-338,339 License Nos. NPF-4,7 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2
SUMMARY
REPORT FOR RESOLUTION OF UNRESOLVED SAFETY ISSUE (USI) A-46 In Generic Letter (GL) 87-02, the NRC staff set forth the process for resolution of USI A-46 and encouraged the affected nuclear power plant licensees to participate in a generic program. In Supplement 1 to GL 87-02, the NRC staff requested a commitment to the Generic implementation Procedure for Seismic Verification of M.echanical and Electrical Equipment for Nuclear Plants, Revision 2, (GIP-2) prepared by Seismic Qualification Utility Group (SOUG) for resolution of USl A-46. The NRC also requested a schedule for implementation of GIP-2 and submission of a report summarizing the results of the USI A-46 program. In our letter dated September 18,1992 (Serial No.92-384), Virginia Electric and Power Company committed to implement GIP-2, including the clarifications, interpretations, and exceptions indicated in the Supplemental Safety Evaluation Report No. 2 (SSER-2) and included a schedule for submittal of a summary report of the program. No significant deviations / exceptions to the GlP/ SSER-2 were used in our implementation of the USI A-46 seismic review process.
This letter forwards the results of the USI A-46 evaluation for North Anna Power Station Units 1 and 2.
i The GIP-2 requires that a plant-specific summary report be submitted to the NRC staff, including a proposed schedule for modifications and/or replacement of those outliers which are yet to be resolved. The Sumrnary Report also required submittal of the Safe Shutdown Equipment List (SSEL), Seismic Evaluation, Relay Evaluation, and a Completion Report. The attachment to this letter constitutes the Summary Report.
Outliers, as defined by GIP-2, were identified during the seismic review. The outliers that have been resolved and those that have not yet been resolved are discussed in Sections 11.1 and 11.2, respectively, of the attached Summary Report. The outliers that t
970603 I
?" ^0226 970527Su8. IlllllllllllBl}!ll! 111111!!!1lll!
5
I remain open are not considered to be significant and will not render any structure, system or component inoperable during or following a design basis earthquake.
Virginia Electric and Power Company plans to disposition the outliers that have not yet been resolved by the end of the North Anna Unit 1 refueling outage currently scheduled to commence in April 2000.
The NRC will be notified when the planned actions for resolution of USl A-46 have been completed including disposition of the remaining outliers. The commitments made in this letter are summarized below. If you have any questions, please contact us.
Very truly yours, J. P. O'Hanlon Senior Vice President - Nuclear Attachment Commitments made in this letter:
1.
Disposition of the outliers defined in Section 11.2 of the attached Summary Report by the end of the North Anna Unit 1 refueling outage currently scheduled to commence in April of 2000.
l 2.
Notify the NRC when the planned actions for resolution of USI A-46 have been completed including disposition of the remaining outliers.
cc:
U. S. Nuclear Regulatory Commission Region 11 Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 NRC Senior Resident inspector North Anna Power Station
~.
___ ~.--. _. _.
-t i
i i
COMMONWEALTH OF VIRGINIA
)
)
COUNTY OF HENRICO
)
i The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by J. P. O'Hanlon, who is Senior Vice President - Nuclear, of Virg!nia Electric and Power Company. He has affirmed before me that he is duly authorized to execute and file the foregoing document in behalf of that Company, and that the statements in the document are true to the best of his knowledge and belief.
Acknowledged before me thisMday of Alle
.19 N.
O My Commission Expires: March 31,2000.
'0($[b_
blbtL) i Notary Public (SEAL)