ACCELERATED DIS7 A1UTION, DEMONSTRA*)N SYSTEM

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8803230006 DOC.DATE: 88/02/29 NOTARIZED: NO DOCKET # FACIL:50-361 San Onofre Nuclear Station, Unit 2, Southern Californ 05000361

50-362 San Onofre Nuclear Station, Unit 3, Southern Californ 05000362 AUTH.NAME AUTHOR AFFILIATION SIACOR,E.R. Southern California Edison Co. MORGAN,H.E. Southern California Edison Co. RECIP.NAME RECIPIENT AFFILIATION

R SUBJECT: Monthly operating repts for Feb 1988.W/880311 ltr.

DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR I ENCL f SIZE: TITLE: Monthly Operating Report (per Tech Specs)

NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL

PD5 LA 1 0 PD5 PD 5 5 HICKMAN,D 1 0

INTERNAL: ACRS 10 10 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 ARM TECH ADV 2 2 NRR/DLPQ/PEB11B 1 1 NRR/DOEA/EAB11E 1 1 NRR/ DRE/ RPB10A 1 1 NRR/PMAS/ILRB12 1 1

G FIL 01 1 1 RGN5 1 1

EXTERNAL: EG&G GROH,M 1 1 LPDR 1 1 NRC PDR 1 1 NSIC 1 1

R

D

S

D

D

S

TOTAL NUMBER OF COPIES REQUIRED: LTTR 31 ENCL 29

NRC MONTHLY OPERATING REPORT

DOCKET NO. 50-361 UNIT SONGS - 2 DATE Mnrrh,11, 1988

COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

OPERATING STATUS

1. Unit Name: San Onofre Nuclear Generating Station, Unit 2 2. Reporting Period: February 1988 3. Licensed Thermal Power (MWt): 3390 4. Nameplate Rating (Gross MWe): 1127 5. Design Electrical Rating (Net MWe): 1070 6. Maximum Dependable Capacity (Gross MWe): 1127 7. Maximum Dependable Capacity (Net MWe): 1070 8. If Changes Occur In Capacity Ratings (Items Number 3 Through 7)

Since Last Report, Give Reasons: NA

9. Power Level To Which Restricted, If Any (Net MWe): NA 10. Reasons For Restrictions, If Any: NA

This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 696.00 1,440.00 39,769.00 12. Number Of Hours Reactor Was Critical 696.00 1,440.00 26,993.68 13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 14. Hours Generator On-Line 696.00 1,426.55 26,372.40 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 16. Gross Thermal Energy Generated (MWH) 2,508,516.86 4,718,013.31 84,879,138.58 17. Gross Electrical Energy Generated (MWH) 811,449.50 1,629,072.50 28,615,534.00 18. Net Electrical Energy Generated (MWH) 775,524.00 1,554,759.00 27,073,505.34 19. Unit Service Factor 100.00% 99.07% 66.31% 20. Unit Availability Factor 100.00% 99.07% 66.31% 21. Unit Capacity Factor (Using MDC Net) 104.14% 100.91% 63.62% 22. Unit Capacity Factor (Using DER Net) 104.14% 100.91% 63.62% 23. Unit Forced Outage Rate 0.00% 0.00% 4.39% 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

NA

25. If Shut Down At End Of Report Period, Estimated Date of Startup: NA 26. Units In Test Status (Prior To Commercial Operation): Forecast Achieved

INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA

7435u. rpt/3

PDR 0CIK 880o&0.00229 0.00

PDR~~00 0.000603AI 4,78,03.3 84,879,138.58

AVERAGE DAILY UNIT POWER LEVEL

DOCKET NO. 50-361 UNIT SONGS - 2 DATE March, 11, 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

MONTH February 1988

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1 1121.42 17 1122.46

2 1124.52 18 1121.79

3 1124.15 19 1120.94

4 1122.85 20 934.42

5 1119.73 21 1122.60

6 1114.75 22 1121.38

7 1131.25 23 1126.96

8 1114.60 24 1125.54

9 1115.40 25 1121.10

10 1121.04 26 1119.73

11 1127.50 27 1130.69

12 1126.88 28 1119.90

13 1125.63 29 1124.38

14 1115.42 30 NA

15 1120.83 31 NA

16 1131.88

7435u.rpt/4

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-361 UNIT NAME SONGS - 2

REPORT MONTH FEBRUARY 1988 DATE March 11, 1988 COMPLETED BY E. R. Si-acor

TELEPHONE (714) 368-6223

Method of Shutting

Duration Down LER Systep Compongnt Cause & Corrective No. Date Typel (Hours) Reason 2 Reactor3 No. Code Codeo Action to

Prevent Recurrence

NA NA NA NA NA NA NA NA NA NA

1F-Forced 2Reason: 3Method: 4IEEE Std 805-1984 S-Scheduled A-Equipment Failure (Explain) 1-Manual

B-Maintenance or Test 2-Manual Scram. C-Refueling 3-Automatic Scram. D-Regulatory Restriction 4-Continuation from E-Operator Training & License Examination Previous Month F-Administrative 5-Reduction of 20% SIEEE Std 803A-1983 G-Operational Error (Explain) or greater in the H-Other (Explain) past 24 hours

6-Other (Explain)

7435u.rpt/5

SUMMARY OF OPERATING EXPERIENCE FOR THE MONTH

DOCKET NO. 50-361 UNIT SONGS - 2 DATE March 11, 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

Date Time Event

February 1 0001 Unit is in Mode 1 at 100% reactor power. Turbine load at 1163 MWe gross.

February 20 0300 Commenced power reduction to 80% reactor power in preparation for heat treating the circulating water intake structure.

0506 Reactor at 80% power.

1810 Commenced power increase to 100% reactor power following completion of heat treating operations.

February 22 2200 Reactor at 100% power.

February 29 2400 Unit is in Mode 1 at 100% reactor power. Turbine load at 1160 MWe gross.

7435u.rpt/6

REFUELING INFORMATION

DOCKET NO. 50-361 UNIT SONGS - 2 DATE March 11, 1988

MONTH: February 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

1. Scheduled date for next refueling shutdown.

August 1989

2. Scheduled date for restart following refueling.

October 1989

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

Not yet determined

What will these be?

Not yet determined

4. Scheduled date for submitting proposed licensing action and supporting information.

Not yet determined

5. Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

Not yet determined

6. The number of fuel assemblies.

a) In the core. 217

b) In the spent fuel storage pool. 268

7. Licensed spent fuel storage capacity. 800

Intended change in spent fuel storage capacity. Under Review

8. Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

Approximately 1997 (refueling only)

Approximately 1993 (full off load capability)

7435u.rpt/7

NRC MONTHLY OPERATING REPORT

DOCKET NO. 50-362 UNIT SONGS - 3 DATE March 11, 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

OPERATING STATUS

1. Unit Name: San Onofre Nuclear Generating Station, Unit 3 2. Reporting Period: February 1988 3. Licensed Thermal Power (MWt): 3390 4. Nameplate Rating (Gross MWe): 1127 5. Design Electrical Rating (Net MWe): 1080 6. Maximum Dependable Capacity (Gross MWe): 1127 7. Maximum Dependable Capacity (Net MWe): 1080 8. If Changes Occur In Capacity Ratings (Items Number 3 Through 7)

Since Last Report, Give Reasons: NA

9. Power Level To Which Restricted;' If Any (Net MWe): NA 10. Reasons For Restrictions, If Any: NA

This Month Yr. -to-Date Cumulative

11. Hours In Reporting Period '696-.00. 1,440.00 34,320.00 12. Number Of Hours Reactor Was Critical 637.38 1,191.65 24,939.62 13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00 14. Hours Generator On-Line 631.83 1,140.25 24,014.45 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00 16. Gross Thermal Energy Generated (MWH) 2,121,876.70 3,764,803.88 73,366,199.70 17. Gross Electrical Energy Generated (MWH) 734,934.00 1,292,687.50 24,770,588.50 18. Net Electrical Energy Generated (MWH) 696,914.00 1,217,328.00 23,286,992.47 19. Unit Service Factor 90.78% 79.18% 69.97% 20. Unit Availability Factor 90.78% 79.18% 69.97% 21. Unit Capacity Factor (Using MDC Net) 92.71% 78.27% 62.83% 22. Unit Capacity Factor (Using DER Net) 92.71% 78.27% 62.83% 23. Unit Forced Outage Rate 9.22% 5.33% 9.34% 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Cycle 4 Refueling Outage, April 23, 1988, 80-day duration

25. If Shut Down At End Of Report Period, Estimated Date of Startup: NA 26. Units In Test Status (Prior To Commercial Operation): Forecast Achieved

INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA

7435u.rpt/8

AVERAGE DAILY UNIT POWER LEVEL

DOCKET NO. 50-362 UNIT SONGS - 3 DATE March 11, 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

MONTH February 1988

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1 1124.35 17 1120.19

2 1129.38 18 1107.77

3 1123.71 19 583.23

4 1122.13 20 13.75

5 1106.52 21 0.00

6 1117.60 22 559.42

7 1132.60 23 1129.25

8 1126.15 24 1131.42

9 1124.58 25 1131.85

10 1128.13 26 1070.31

11 1139.17 27 1126.90

12 1105.00 28 1130.04

13 1115.63 29 1130.21

14 1131.67 30 NA

15 1116.67 31 NA

16 1140.83

7435u.rpt/9

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-362 UNIT NAME SONGS - 3

REPORT MONTH FEBRUARY 1988 DATE Marrh 11 19R COMPLETED BY E. R. Siacor

TELEPHONE (714) 368-6223

Method of Shutting

Duration Down LER Syste Compongnt Cause & Corrective No. Date Typel (Hours) Reason2 Reactor3 No. Code" Code Action to

Prevent Recurrence

40 880219 F 64.17 F 2 88-003 BQ/BK NA The reactor was manually tripped from 100% power as required by procedure following spurious actuation of Trains "A" and "B" of both Safety Injection Actuation System (SIAS) and the Containment Cooling Actuation System (CCAS). The actuations occurred during performance of the 31-day Plant Protection System (PPS) matrix testing. Examination and extensive testing which could be performed without placing the unit in cold shutdown had been unable to determine the cause of the actuation. Additional testing will be performed during the Cycle 4 refueling outage scheduled for A 1988.

1F-Forced 2Reason: 3Method: 4 1EEE Std 805-1984 S-Scheduled A-Equipment Failure (Explain) 1-Manual

B-Maintenance or Test 2-Manual Scram. C-Refueling 3-Automatic Scram. D-Regulatory Restriction 4-Continuation from E-Operator Training & License Examination Previous Month F-Administrative 5-Reduction of 20% 51EEE Std 803A-1983 G-Operational Error (Explain) or greater in the H-Other (Explain) past 24 hours

6-Other (Explain) 7435u. rpt/10

SUMMARY OF OPERATING EXPERIENCE FOR THE MONTH

DOCKET NO. 50-362 UNIT SONGS - 3 DATE March 11, 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

Date Time Event

February 1 0001 Unit is in Mode 1 at 100% reactor power. Turbine load at 1165 MWe gross.

February 19 1304 Reactor was manually tripped from 100% power in accordance with procedures following spurious SIAS and CCAS actuation during PPS matrix testing. Entered Mode 3.

February 21 2258 Entered Mode 2.

2341 Reactor made critical.

February 22 0230 Entered Mode 1.

0514 Unit synchronized to the grid. Continuing increase to 100% reactor power.

2325 Reactor at 100% power.

February 29 2400 Unit is in Mode 1 at 100% reactor power. Turbine load at 1170 MWe gross.

7435.rpt/11

REFUELING INFORMATION DOCKET NO. 50-362 UNIT SONGS - 3 DATE March 11, 1988

MONTH: February 1988 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223

1. Scheduled date for next refueling shutdown.

April 23, 1988

2. Scheduled date for restart following refueling.

July 11, 1988

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

No

What will these be?

Not applicable

4. Scheduled date for submitting proposed licensing action and supporting information.

Not applicable

5. Important Licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

Not applicable

6. The number of fuel assemblies.

a) In the core. 217

b) In the spent fuel storage pool. 160

7. Licensed spent fuel storage capacity. 800

Intended change in spent fuel storage capacity. Under Review

8. Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

Approximately 1997 (refueling only)

Approximately 1993 (full off load capability)

7435u.rpt/12

Southem California Edison Company SAN ONOFRE NUCLEAR GENERATING STATION

P. 0. BOX 128

SAN CLEMENTE, CALIFORNIA 92672

H.E.MORGAN TELEPHONE STATION MANAGER March 11, 1988 (714) 368-6241

U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject: Docket Nos. 50-361/50-362 Monthly Operating Reports for February 1988 San Onofre Nuclear Generating Station, Units 2 and 3

Enclosed are!the Monthly Operating Reports as required by Section 6.9.1.10 of Appendix A, Technical Specifications to Facility Operating Licenses NPF-10 and NPF-15 for San Onofre Nuclear Generating Station, Units 2 and 3, respectively.

Please contact us if we can be of further assistance.

Sincerely,

Enclosures

cc: J. B. Martin (Regional Administrator, USNRC Region V)

F. R. Huey (USNRC Senior Resident Inspector, Units 1, 2 and 3)

Institute of Nuclear Power Operations (INPO)

i