ML20236J840
| ML20236J840 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/06/1998 |
| From: | Rainsberry J SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AL-98-03, AL-98-3, NUDOCS 9807090032 | |
| Download: ML20236J840 (3) | |
Text
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V EDISON
'"". *lant Licensing m
Manager P An CDISD% $YlERNAllo\\AL" Company i
July 6, 1998 l
U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Gentlemen:
Subject:
Docket Numbers 50-206, 50-361, and 50-362 Response to NRC Administrative Letter 98-03: Operating Reactor Licensing Action Estimates j
San Onofre Nuclear Generating Station, Units 1, 2, and 3 l
i I
References:
1.
NRC Administrative Letter 98-03: Operating Reactor Licensing Action Estimates, dated May 6, 1998.
l i:
2.
June 6,1990 NRC Memorandum from Thomas E. Murley to NRR Staff,
Subject:
Priority Determination for NRR Review
- Efforts, f
As requested in NRC Administrative Letter 98-03 (Reference 1), this letter provides estimates of the number of new licensing action requests Southern California Edison (SCE) plans to submit for San Onofre Units 1, 2, and 3 in the remainder of NRC fiscal year 1998 and during fiscal year 1999.
Licensing actions include requests for license amendments, exemptions, and reliefs.
SCE p?ans to submit seven (7) new licensing actions during the remainder of fiscal year 1998 (before October 1, 1998), including the following highest priority license amendment requests, Proposed Change Notices (PCNs), which are t
listed in SCE's priority order:
i Planned Requested PCN Subject NRC Priority
- Submit Date Approval Date 497 Diesel. Generator 2
07/31/98 09/01/98 I g l
Cross-Tie g
493 Pressurizer Safety 3
08/01/98 02/01/98 Valve Tolerances
- Based on Reference 2 San Onofre Nuclear Generating Station P.O.Ikn 128 San Clemente, CA 926744)l28 714-308-7420 9907090032 990706 PDR ADOCK 05000206
(
P PDR.
I Document Control Desk l l
NRC approval of PCN.493, along with PCN 470 identified below, is requested to
. support the San Onofre Unit 2 Cycle 10 refueling outage, which is currently scheduled to'begin on January 2, 1999. Approval of PCN 497, along with PCN 453 identified below, will be requested by September 1,1998 to support overhaul of the diesel generators prior to the Unit 2 Cycle 10 refueling-outage. Other high priority PCNs, and one relief request (RR) which were previously submitted for NRC approval are.the following:
Requested NRC Date(s)
Approval PCN Subject Priority
- Submitted Date
.491 T(Cold) Reduction 2
06/19/98 01/26/99 494 Turbine Missile Analysis 1
06/12/98 12/01/98 468 10CFR50 Appendix J Update 1
05/30/96 11/01/98 Integrated Leak Rate Testing 05/11/98 487 ABB Combustion Engineering 1
09/16/97 07/17/98 Steam Generator Sleeving 02/23/98 490 Shutdown Cooling Inverter 2
03/06/98 12/01/98 Replacement 453 Diesel Generator Allowed 3
11/02/95 09/01/98 Outage Time Increase 01/09/98 06/12/98 470 Pressurizer Level 3
12/19/97 02/01/99 06/01/98 RR Mechanical Nozzle Seal 1
07/11/97 09/30/98 Assembly (MNSA) 12/12/97 01/05/98 04/30/98
- Based on reference 2 In this list, PCNs 491, 494, 468, 487, 490, 453, and 470 will affect the operation of the units and the upcoming Cycle 10 refueling outages. Approval
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of PCNs 491 and 494 will support the Cycle 10 refueling outage and the future operation of the units. ApprovalofPCN468by11/01/98 will avoid a plant shutdown on 11/15/98 for local leakrate testing. Approval of PCN 487 by 07/17/98 will support steam generator sleeving activity that will be needed
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Document Control Desk i during the Cycle 10 refueling outage and allow startup from the outage.
ApprovalofPCN453by09/01/98, as indicated above, will-support overhaul of the diesel generators prior to the Cycle 10 refueling outage. Approval of PCN 470 is required due to the reduction in operator action time for the
. increase.in Reactor Coolant System inventory events and to support PCN 493 identified above. ' Approval of the MNSA relief request by 09/30/98 will allow
- use of the MNSAs permanently on the pressurizer instrument nozzles and the steam generator channel head instrument nozzles.
In addition, for Fiscal Year 1999, approximately 20 additional licensing
. actions are planned for submittal. Among these licensing actions will be PCN495,.scheduledtobesubmittedby.10/01/98, which is to remove the credit for the charging system flow from the Emergency Core Cooling System (ECCS).
Approval for this PCN will be requested prior to startup from the Unit 2 Cycle 10 refueling outage. SCE is also planning to submit by 11/30/98aPCN which will address the use of other sleeves, in addition to the ABB Combustion Engineering sleeves, in the San Onofre Units 2 and 3 steam generators. 'There will also be licensing-actions associated with the decommissioning of Unit 1, and an anticipated request for a Site Specific Integrated Spent Fuel Storage Installation License Application to support the decommissioning.
Should you have any questions or..need additional information, please let rae
' know.
Sincerely, cc:-
~E. W. Merschoff, Regional Administrator, NRC Region IV K. E. Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV L. L. Wheeler,- NRC Project Manager, San Onofre Unit 1 1
J. W. Clifford, NRC Project Manager, San Onofre Units-2 and 3 l
D. B. Spitzberg, Regional Project Inspector, San Onofre Unit 1 J. A. Sloan, NRC Senior Resident Inspector, San Onofre Units 2 & 3 M. L. Boyle, NRC, NRR/DRPE, Mail Stop 0-14 E4 i
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