ML20108C210
| ML20108C210 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 12/31/1995 |
| From: | NEBRASKA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20108C197 | List: |
| References | |
| NUDOCS 9605060232 | |
| Download: ML20108C210 (7) | |
Text
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l COOPER NUCLEAR STATION l
IlROWNVILLE, NEllRASKA l
ANNUAL OPERATING REPORT 1
.IANUARY 1,1995, TIIROUGil DECEMBER 31,1995 USNRC DOCKET 50-298 i
i 9605060232 960430 PDR ADOCK 05000299 R
[
l TAllLE OF CONTENTS l
SECTION PAGE 1
1.
PERFORMANCE Cil ARACTERISTICS....
1 Fuel Perfom1ance.
2 MSV and MSRV Failures and Challenges.
3 II.
PERSONNEL AND MAN-REM EXPOSURE..
4 Ily Work and Job Function....
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e I.
PERFOllMANCE CII AllACTERISTICS 1
l FilEL PEltFORMANCE l
Cycle 16 operation continued with the plant remaining shutdown until February 9,1995. The plant started up and achieved full power on February 27,1995. Normal full power operation continued until the plant shutdown fbr the 1995 Refueling and Maintenance Outage on October 14.1995. The Refueling and Maintenance Outage ended on December 27,1995, with reactor startup and the generator returning to service on December 30,1995.
The remainder of Cycle 16 and the beginning of Cycle 17 off-gas activity continued at essentially steady state levels with reactor coolant dose equivalent I-131 equilibrium values and off-gas release rates maintained well within the limits specified by the Cooper Nuclear Station Technical Specifications.
Comparisons of actual control rod densitites predicted by computer program calculations at various core exposures indicated no reactivity anomalies of 1% or greater.
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1 MSV AND MSRV FAIL,URES AND CIIALLENGES (Ref.: NUREG-0737, Action item II.k.3.3)
There were no challenges to the Safety Valves during 1995.
There was one Safety Valve failure during the 1995 refueling outage. MS-RV-70ARV failed as-foui..i testing requirements. The failure was attributed to valve seat leakage which leads to elevated temperatures, spring relaxation, and setpoint drift on the low side.
There were no challenges to the Safety Relief Valves during 1995.
During plant startup in February 1995, there were three Safety Relief Valve failures. MS-RV-71 ERV, MS-RV-71 GRV, and MS-RV-71IIRV failed to open during the performance of surveillance procedures. The failures were attributed to manufacturing process problems that led to moisture induced corrosion inside the Safety Relief Valve's associated pilot valve.
During the plant refueling outage in October 1995, there were four failures of Safety Relief Valves.
MS-RV-7111RV, MS-RV-71 ARV, MS-RV-71BRV, and MS-RV-71FRV failed as-found testing requirements. The failures were attributed to corrosion bonding of the pilot disc to the pilot seat resulting in setpoint drift.
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1 11.
PERSONNEL AND MAN-REM EXPOSURE 1
4
PERSONNEL AND MAN-REM BY WORK AND JOB FUNCTION Number of Personnel
(> 100 mrem)
Total Man-rem Station Utility Contractor &
Station Utility Contractor &
Work and Job Punction Employees Employees Others Employees Employees Others REACTOR OPERATIONS & SUPV.
Maintenance Personnel 54 2
65 1.266 0.056 0.897 Operating Personnel 41 0
0 8.407 0.000 0.000 Bealth Physics Personnel 30 0
33 7.385 0.000 7.422 Supervisory Personnel 6
0 2
0.305 0.000 0.379 Engineering Personnel 19 2
17 1.380 0.063 0.545 ROUTINE MAINTENANCE Maintenance Personnel 76 2
323 34.616 0.581 63.922 Operating Personnel 42 0
0 7.701 0.000
.0.000 Health Physics Personnel 33 0
33 11.834 0.000 6.788 Supervisory Personnel 7
0 4
1.278 0.000 0.358 Engineering Personnel 20 3
19 2.852 0.708 2.819 SPECI AL MAINTENANCE Maintenance Personnel 18 1
80 0.960 0.021 3.568 Operating Personnel 2
0 0
P.134 0.000 0.000 Health Physics Personnel 9
0 10 0.117 0.000 0.094 Supervisory Personnel 1
0 0
0.005 0.000 0.000 Engineering Personnel 1
2 3
0.061 0.089 0.019 WASTE PROCESSING Maintenance Personnel 17 0
5 0.044 0.000 0.007 Operating Personnel 26 0
0 0.774 0.000 0.000 Health Physics Personnel 14 0
6 0.540 0.000 0.062 Supervisory Personnel 1
0 0
0.001 0.000 0.000 Engineering Personnel 0
0 0
0.000 0.000 0.000 BEf.ViklH2 Maintenance Personnel 1
0 16 0.001 0.000 0.880 Operating Personnel 5
0 0
0.253 0.000 0.000 Health Physics Personnel 2
0 0
0.004 0.000 0.000 Supervisory Personnel 1
0 0
0.002 0.000 0.000 Engineering Personnel 1
0 1
0.067 0.000 0.002 INSERVICE INSPECTION 4
Maintenance Personnel 8
0 137 0.218 0.000 36.160 Operating Personnel 6
0 0
0.038 0.000 0.000
)
Health Physics Personnel 12 0
6 0.254 0.000 0.519 Supervisory Personnel 1
0 1
0.148 0.000 0.001 Engineering Personnel 5
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0.329 0.006 0.032 IQIAL Maintenance Personnel 76 2
351 36.805 0.658 105.434 Operating Personnel 42 0
0 17.307 0.000 0.000 Bealth Physics Personnel 33 0
41 20.134 0.000 14.885 Supervisory Personnel 7
0 4
1.738 0.000 0.738 Engineering Personnel 20 3
20 4.689 0.866 3.417 CRAND TOTALS 178 5
416 80.673 1.524 124.474 5
l LIST OF NRC COMMITMENTS l ATTACHMENT 3 l Correspondence No: NLS960074 The following table identifies those actions committed to by the District in this document.
Any other actions discussed in the submittal represent intended or l
planned actions by the District.
They are described to the NRC for the NRC's information and are not regulatory commitments.
Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.
COMMITTED DATE COMMITMENT OR OUTAGE l
None N/A l
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PROCEDURE NUMBER 0.42 l
REVISION NUMBER 1.1 l
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