ML20149E333
| ML20149E333 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/30/1997 |
| From: | Gibson G, Williams C SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9707180170 | |
| Download: ML20149E333 (9) | |
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5001111 RN CAIIIORNIA EDISON An unson ixiiassriorat came.ny.
t July 11,'1997 F
U. S. Nuclear Regulatory Commission
' Document Control Desk-Washington, D.C. 20555
' Gentlemen:
-i
Subject:
Docket Nos. 50-361 and 50-362 Monthly Operating Reports for June 1997 San Onofre Nuclear Generating Station, Units 2 and 3 Technical Specification 5.7.1.4 of Facility Operating Licenses NPF-10 and NPF-15 for the San Onofre Nuclear Generating Station, Units 2 and 3, respectively, requires
. Edison to provide a Monthly Operating Report (MOR) of operating statistics and shutdown experience, including documentation of all challenges to pressurizer safety valves, for each unit. Enclosures 1 and 2 provide the June 1997 Monthly Operating Reports for Units 2 and 3, respectively. There were no challenges to pressurizer safety valves for either Unit 2 or 3.
If you have any' questions, please contact Mr. C. E. Williams at (714) 368-6707.
Sincerely, l
~@[ Gregory T. Gibson Manager, Compliance
. Enclosures cc:
E. W.- Merschoff, Regional Administrator, NRC Region IV K. E. Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV J. A. Sloan, NRC Senior Resident inspector, San Onofre Units 2 & 3 M. B. Fields, NRC Project Manager, San Onofre Units 2 & 3
'9707190170 970630 PDR. ADOCK : 05000361 :
PDR.'1 R
h, P. O,ihn 128 San Cimvyae, CA 92674 0128 '
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NRC Monthly Operating Report, June 1997 San Onofre Nuclear Generating Station, Unit 2 i-i' i
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USNRC MONTHLY OPERATING REPORT Docket No:
50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name:
SONGS-2 UNIT 2 Date:
July 111997 June 1997 Completed by:
C. E. Williams Telephone:
(714) 368-6707 Page 1 of 3 l
OPERATING DATA REPORT L11
- Design Electrical Rating (Not MWe))!
By
[1070s 2
Maximum Dependable Capacity (Gross MWe) 1127 11070?
73i
-Maximum Dependable _Capaciti (Not MWe)n This Month Yr-to-Date Cumulative f4/
. Number of Hours Reactor Was Critical; 16881<
s2,205),
- iS3,6103 5
Hours Generator On-line 688 2,150 91,997
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- 6$ Unit Reserve Shutdown Hours (
, y10 0)
(0,03 10.0ji ~
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Net Electrical Energy Generated (MWh) 740,346 2,275,375 96,866,45 1
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USNRC MONTHLY OPERATING REPORT Docket No:
50-361 E AN ONOFRE NUCLEAR GENERATING STATION Unit Name:
SONGS-2 UNIT 2 Date:
July 11 1997 June 1997 Completed by:
C. E Williams Telephone:
(714) 368-6707 Page 2 of 3 SHUTDOWNS AND POWER REDUCTIONS 5,
' M02i
!W Numbere 96
- de Date June 29,1997 WF?(Escsd)i[
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Type ~(1);.; tE M
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s Duration (1) 32.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Reason (2)1 s
- 2A(Equip? Failure)1 Method of shutting down reactor (3) 2 g2;97p0103
.LER No#
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- X" System Code (4)
CB 4
Component Code'(5)) i M,
Charging check valve MUO21 was stuck e
closed due to design defect. Valve Cause and corrective action to prevent recurrence replaced with a valve without design j
defect.
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(1)
F-Forced S-Sches, led (2) Reason:
A Equipment Failure (Explain)
B-Meintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & Ucense Examination F-Administrative G-Operational Error (Explain)
H-Other (Explah)
(3) Method.
1-Manual 2 Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction in the Average Daily Power Level of more than 20% from the previous day 6-Other (Explain)
(4)IEEE Std 805-1984 (5)IEEE Std 803A 1983
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USNRC MONTHLY OPERATING REPORT Docket No:
50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name:
SONGS-2 UNIT 2 Date:
July 111997 June 1997 Completed by:
C. E. Williams Telephone:
(714) 368-6707 Page 3 of 3
SUMMARY
OF OPERATING EXPERIENCE FOR THE MONTH Date Time Event 6/1/9?j
'000 { Msd.e)1[99.8(Psast6f power /d158 MWi[60l0 EFPDi Unit entered 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Technical Specification shutdown action per 3.5.2.A.
6/26/97 1413 ECCS charging line loop 2A check valve S21201MUO21 will not pass required flow.
"4 Started reactor down power to.90% to place the unit.;within the licensing 3g fg-basis of the SBl.OCA analysis 3
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' #M m 1630 Unit at 90% reactor power, approximately 1010 MWe.
6/29/97? ';1102;' Testing ofpa@ng de@aye M@cajespalve.is sW g Commenced plant shutdown at>15% per houra Exited 72-hour action statement of Tech. Spec. 3.5.2.A and entered Action B 1413 of Tech. Spec. 3.5.2.
[1534) Trippsd niair{tortine?
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1548 Tripped reactor, Unit entered Mode 3.
?!? L231?i-lEntirsd.M6de karidexitedjhutdown';astisN 3[5(24fA(;shargirigIcheckhl9el 6/30/97 0844 Unit entered Mode 5.
. Unit in. Mode 5g123 degrees Ec350 sta; preparations in progress to drain to; i
mid-looo~to repair'ch'aroirid check Ya vs MUO21?
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NRC Monthly Operating Report, June 1997 San Onofre Nuclear Generating Station, Unit 3 I
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USNRC MONTHLY OPERATING REPORT Docket No:
50-362 SAN ~ONOFRE NUCLEAR GENERATING STATION Unit Name:
SONGS-3 UNIT 3 Date:
July 1997 June 1997 Completed by:
C. E. Williams Telephone:
(714) 368-6707 Page 1 of 3
.f OPERATING DATA REPORT 51;!
Design Electrical Rating (Net MWe)) ~ ^
11080) 2 Maximum Dependable Capacity (Gross MWe) 1127 23?
Maximum Dependable ~ Capacity;(Net MWe)6 61080)
~
This Month Yr-to-Date Cumulative 04
. Number of Hours Reactor Was Critical) 404, -
$2l424P 192l716V 5
Hours Generator On-line 0
2,424 90,958 563 Unit Reserve Shutdown HoursJ
[0,01,
30.0i
?io.0J 7
Net Electrical Energy Generated (MWh)
(12,830) 2,576,729 94,354,740 I
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j USNRC MONTHLY OPERATING REPORT Docket No:
50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name.
SONGS-3 U::JIT 3 Date:
July 1997 Ane 1997 Completed by:
C. E. Williams Telephone:
(714) 368-6707 Page 2 of 3 UNIT SHUTDOWNS AND POWER REDUCTIONS Number je3P 4
^ ^
x Date April 12,1997
}S(Scheduled)j
- Type'(1)!
g; 720 Duration (Hours)
!!C(Refueling));
W iReason (2)P%
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Method of shutting down reactor (3) 4 (Continuation)
LER No.9 j
!#M s
N/A System Code (4)
Componont Code;(5)( > ~
jN/As Cause and corrective action to prevent recurrence N/A l
l (1)
F-Forced S-Scheduled (2) Reason:
A-Equipment Failure (Explain)
B-Maintenance or Test C-Refueling D-Regulatory Restricton E-Operator Training & License Examination F.Administratrve G-Operatonal Error (Explair:)
H-Other (Explain)
(3) Method.
1-Manual 2-Manual Scram 3-Automate Scram
- 4. Continuation from Previous Month 5-Reduction in the Average Daily Power Level of more than 20% from the previous day
&Other (Explain)
(4)lEEE Std 805-1964 (5)IEEE Std 803A-1983 l
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J USNRC MONTHLY OPERATING REPORT Docket No:
50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name:
SONGS-3 UNIT 3 Date:
July 1997 June 1997 Completed by:
C. E. Williams Telephone:
(714) 368-6707 Page 3 of 3
SUMMARY
OF OPERATING EXPERIENCE FOR THE MONTH Date Time Event
- 6/il97*i Mi;. ; Unit 3 in Mode 5; 93 degrees Fr atmospheric pressuregESEtegingjnji,
progress, day ~49 of a planned 75 day outage in progress 3 m
D 6/14/97 0217 Entered Mode 4.
6/15/97j L1820;; LEntersd Mode 37
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6/18/97 2034 Initiated RCS cooldown and depressurization to repair CEA 91.
L235n ; Entered MedsM
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yg;3i 2340 Entered Mode 5.
6/22/97{.l0203) Entered M6de 63
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6/23/97 2343 Removed CEA 91 2
6/24/97} d634!
Nsw CEA91l Installed.i M
6/26/97 0247 Entered Mode 5.
6/27/97} lD2'1'5: :. Commenced. making preparations to drain Unit 3 RCS to mid-loop"for rep"aira 4
sfas' gWadialve S31201MUO21T '
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r Unit in Mode 5,95 degrees F, RCS drained to mid-loop for repair of charging 6/30/97 2400 check valve S31201MUO21.
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