IR 05000206/1990004
| ML20012E706 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 03/14/1990 |
| From: | Caldwell C, Gee F, Johnson P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML20012E705 | List: |
| References | |
| 50-206-90-04, 50-206-90-4, 50-361-90-04, 50-361-90-4, 50-362-90-04, 50-362-90-4, NUDOCS 9004060152 | |
| Download: ML20012E706 (7) | |
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V.S. NUCLEAR REGULATORY COMM15$10N f.
REGION V
i 14 port Nos.
50 206/90 04, 50 361/90 04, 50 362/90-04
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Docket Nos.
00 206, 50 301, 50-362 (
License Nos.
Licensee:
Southern California Edison Company
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Irvine Operations Center
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23 Parker Street
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Irvine, California 9?718
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facility Name:
San Onofre Units 1, 2 and 3 Inspection at:
San Onofre, San Clemente, California
Inspection conducted: January 7 - February 10 and February 15,1990
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Inspectors:
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C. W. Caldwell, 5enior tesident inspector Date 51gned
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f A. L. Hon. Resident Inspector
C. D. Townsend, Resident Inspector Accompanying
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I'b I )t inspector:
F. Gee, Reactor Inspector Date Signed (February 6-9,1990)
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Approved By:
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P. H. Q6hnson, Chief Pate Signed Reactor! Projects Section 3 Inspection Summary inspection on January 7 - February 10 and February 15, 1990 (Report Nos.
i 50-206/90 04, 50-361/90-04, and 50-362/90-04)
Areas inspected:
Routine resident inspection of Units 1, 2 and 3 Operations Program including the following areas:
operational safety verification, i
i radiological protection, security, evaluation of plant trips and events, i
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monthly surveillance activities, monthly maintenance activities, engineered safety feature walkdown, independent inspection, licensee event report review, and followup of previously identified items.
Inspection procedures 30703, 61726, 62703, 71707, 71710, 90712, 92700, 92701, and 93702 were utilized.
Safety issues Management System (SIMS) Items:
None
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Results:
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General Conclusions and Specific findings:-
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None.
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$1enificant $afety Matters:
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None.
i Summary of Violations:
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i None, i
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,0 pen items Sumary:
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During this report period, no new followup items were opened; two were closed.
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OETAILS t
1.
Persons Contacted Southern California Edison Company E
'R. Bridenbecker..Vice President and Site Meneger
- H. Morgan, Station Manager B. Katz, Nuclear Oversight Manager, Nuclear Engineering, Safety, and Licensing (NES&L)
'R. Krieger, Operations Manager L. Cash, Maintenance Manager J. Reilly, Technical Manager M. Merlo, Nuclear Design Engineering Manager, NEST.L P. Knapp, Health Physics Manager D. Peacor, Emergency Preparedness Manager D. Herbst, Quality Assurance Manager NES&L C. Chiu, Quality Oversight Engineering Manager J. Schramm, Operations Superintendent Unit 1 Y. Fisher Operations Superintendent, Units 2/3
- R. Plappert, Compliance Manager K. Slagle, Deputy Station Manager
- L. Brevig, Supervisor, Onsite Nuclear Licensing San Diego Gas and Electric Company
- R. Erickson, Site Representative
- Denotes those attending the exit meeting on February 15, 1990.
The inspectors also contacted other licensee employees during the course of the inspection, including operations shift superintendents, control room supervisors, control room operators, QA and QC engineers, compli-ance engineers, maintenance craftsmen, and health physics engineers and technicians.
2.
plant Status Unit 1 The Unit operated at full (91%) power until January 24, 1990 when a steam leak developed from a main turbine manway cover. As a result, reactor power was reduced to 22% in order to repair two broken manway bolts.
Full power operation resumed the next day and continued for the I,
remainder of this inspection period.
Unit 2 The Unit operated at power throughout this inspection period.
Unit 3 The Unit operated at power throughout this inspection period.
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3.
Operational Safety Verification,(71707)
The inspectors performed several plant tours and verified the operabi-lity of selected emergency systems, reviewed the tag out log and
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verified proper return to service of affected components. Particular
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attention was given to housekeeping, examination for potential fire hazards, fluid leals, excessive vibration, and verification that l
maintenance reouests had been initiated for equipment in need of
maintenance. The inspectors elso observed selected activities by
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licensee radiological protection and security personnel to confirm l
proper implementation of and conformance with facility policies and procedures in these areas.
l No violations or deviations were identified.
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4, Monthly Surveillance Activities (61726)
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During this report period, the inspectors observed or conducted inspection of the following surveillance activities:
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a.
Observation of Routine Surveillance Activities (Unit 1)
501-12.1-4 Control Room Shift and Daily Log Readings 501-II 1.76 Surveillance Requirement, Auxiliary l
Feedwater System Test i
501-12.3-15 Turbine Stop Valve Testing
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Observation of Routine Surveillance Activities (Unit 2)
S023-11-1.12 Surveillance Requirement Containment Post-l LOCA Hydrogen Concentration Monitoring System
Channel B Channel Calibration j
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S023-3-2,3 Diesel Generator Monthly Surveillance l
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Observation.of Routine Surveillance Activities (Unit 3)
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o 5023-11-1.11 Surveillance Requirement. Containment Post
LOCA Hydrogen Concentration Monitoring System
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Channel A Channel Calibration l
5023-3-3.25 OnceAShiftSurveillance(Modes 1-4)
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d.
Calibration Procedure Weakness (Unit 1)
While observing the performance of Section 6.2.3 of the Calibration
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of Auxiliary feedwater Train A Lag Actuation Switches surveillance
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procedure, the inspector noted that three steps which the instru-ment technician performed were not clearly stated in the procedure.
These were the following:
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(1) Step 6.2.3.2 required venting the low side of the flow i
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switches.
The technician performed a vent and a drain of the
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low side of each of the four flow switches.
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I (2) Step 6.2.3.3 required the connection of the flow switch test manifold and pressure test gauge to the flow switches.
The instrument technician performed a vent and drain of the
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high side of the flow switches before Step 6.2.3.3 was performed.
Venting and draining the high side of the flow
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i switches was not stated in the procedure.
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(3)' Step 6.2.3.3 did not clearly state that the connections were
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to be made to the high side of the flow switches.
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The inspector considered that these steps, if required, should have been clearly stated in the procedure and not have been left open to interpretation by the instrument technician during performance of the procedure.
The inspector discussed this finding with licensee management who indicated that these activities were within the skill of the craft.
However, licensee management also indicated at the exit meeting that the adequacy of the procedure would be reviewed for possible enhancement.
No violations or deviations were identified.
5.
Monthly Maintenance Activities (62703)
During this report period, the inspectors observed or conducted
' inspection of the following maintenance activities:
a.
Observation of Routine Maintenance Activities (Unit 1)
M089090795 Clean the Tsunami Pit and Apply Protective Coating M090021324 Troubleshooting CV-517
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Observation of Routine Maintenance Activities (Units 283)
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M089070770 New Fuel Receipt and Storage l
M090021376 Troubleshooting Plant Protection System I.-
No violations or deviations were identified.
6.
Engineered Safety Feature Walkdown (71710)
On February 7 - 8, 1990, the inspector walked down the following areas in Unit 1:
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4KV Switchgear Room
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l 400 Y Switchgears 1, 2, and 3 i
Diesel Generator Rooms 1 and 2, Control panels
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Battery Charger Sets C and D
Inverters 1, 2 and 3 l
Battery Room 1
Battery Charger Sets A and B t
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Drawing 5146828, * Main One Line Diagram". Procedure 501-12.3 17
" Electrical Transfer Switches Alignment Check," and Procedure $01 9 3,
"480V Systems Operations" were utilized as references for the walkdown.
The inspector found that breakers and switches appeared to be properly i
aligned.
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No violations or deviations were identified.
7.
ReviewofLicenseeEventReports(90712,92700)
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Through direct observations, discussion with licensee personnel, or review of the records, the following Licensee Event Reports (LERs) were
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closed:
Unit 1 89-24 Potential Containment Spray Reduction on
Loss of Instrument Air i
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89 32 Failure to Perform Technical Specifications Surveillance Unit 2
89-23 Delinquent Hourly Firewatch No violations or deviations were identified.
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Followup of Previously identified Items (92701)
a.
(Closed) Followup item (361/89-07 01), "MOV Inspection"
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During a previous inspection, a safety related motor operated valve (MOV) failed to operate properly. The licensee inspected the Limitorque valve actuator and discovered that the key which locked i
the motor shaft and pinion gear had moved, allowing the motor to spin freely.
In addition, the setscrew securing the key was found to be loose and was not staked.:s required by the maintenance
procedure. As a result, the licensee committed to inspect and
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stake the setscrews of those MOVs that had not been previously inspected, at a rate of 15% per year.
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For followup, the licensee identified all safety related MOVs and defined the inspection schedule per their comitment.
In addition, the inspection was included in tne routine motor operated valve I
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analysis and testing (POYATS) activity. During the Unit 2 refueling outage in 1909, the licensee inspected the scheduled MOVs and did not identify similar deficiencies. As a result, this item
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is closed.
b.
(Closed) Y1olation (361/89-09 01). * Housekeeping Deficiency" i
During a previous inspection, the inspector found debris in a number of safety related control room cabinets.
For corrective action, the licensee cleaned the cabinets and installed locks on the cabinet doors to control access to these cabinets.
The inspector considered these actions appropriate.
Therefore, this item is closed.
No violations or deviations were identified.
9.
ExitMeeting(30703)
On February 15, 1990, an exit meeting was conducted with the licensee representatives identified in Paragraph 1.
The inspectors summarized
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the inspection scope and findings as described in the Results section of
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this report.
The licensee acknowledged the inspection findings and noted that appropriate corrective actions would be implemented where warranted.
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The licensee did not identify as proprietary any of the inferination provided to or reviewed by the inspectors during this inspection, s