IR 05000133/1979004
| ML19290D039 | |
| Person / Time | |
|---|---|
| Site: | Humboldt Bay |
| Issue date: | 01/11/1980 |
| From: | Carlson J, Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML19290D035 | List: |
| References | |
| 50-133-79-04, 50-133-79-4, NUDOCS 8002150530 | |
| Download: ML19290D039 (5) | |
Text
U. S. NUCLEAR REGULSTORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION V
.
50-133/79-04 Report No.
50-133 DPR-7 Docket No.
License No.
Safeguards Group Licensee:
Pacific Gas and Electric Company 77 Beale Street San Francisco, California 94106 m
Facility Name:
Humboldt Bay Unit 3 Eureka, California Inspection at:
December 18-20, 1979 Inspection conducted:
Inspecto ([
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J. D. Carlson, Reactor Inspector Date signed Date Signed b__.
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k f II D />AO'#1 Approved By: &
D. Sternberg, Chief, Pseactor Project Section 1 Date Signed
'
Reactor Operations-and Nuclear Support Branch Su:::: nary :
Inspection on December 18-20, 1979 (Report No. 50-133/79-04)
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Areas Inspected:
Routine unannounced inspection of operations; Design, Design Changes, and Modifications; Onsite Review Committee; Requalification Training; flaintenance; Followup on LER's, Bulletins and Circulars; and independent inspection.
The inspection involved 16 inspector-hours onsite by one NRC inspector.
Results: No items of noncompliance or deviations were identified.
.I RV Forta 219 (_2)
,
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DETAILS 1.
Persons Contacted E. Weeks, Plant Superintendent
- W. Rapp, Power Plant Engineer
- R. Twiddy, Quality Control Engineer
- R. Nelson, Training Coordinator The inspector also interviewed other licensee employees during the course of the inspection including control operators, shift foremen, and office personnel.
- Denotes those present at the exit interview on December 20, 1979.
2.
Plant Operations The major items remaining to be completed during the outage have been deferred until resolution of the geologic / seismic issues at the plant.
No major work was observed to be in progress during this inspection.
The inspector walked through areas of the plant to observe activities in progress, to inspect the general state of housekeeping, and to check that monitoring instrumentation was reading or recording as required.
Temp-erature and nuclear monitoring indications appeared normal.
The inspec-tor observed that neutron monitoring was being performed in accordance with Technical Specification requirements.
Normal radiation control prac-tices were in effect including the establishment of barrier controls.
No unusual fluid leaks or piping vibrations were observed. The ventila-tion systems, nuclear instrumentation, component cooling system, and re-actor protection systems were in operation during this tour.
Representative samples of the following logs and records from August -
November,1979 were examined and discussed with licensee personnel:
Control Operator's Log Shift Foremen's Log Jumper Log Clearance Logs Plant Staff Review Comnittee Minutes No items of noncompliance or deviations were identified.
3.
Onsite Review Committee The inspector reviewed the Plant Staff Review Committee (PSRC) minutes to verify that technical specification changes, proposed faciltiy modi-fications, procedure changes, and nonconformance reports were being re.iewed as required.
.
2-No items of noncompliance or deviations were identified.
4.
Design, Design Changes, and Modifications The inspector reviewed the design change packages for eight safety related items.
Items verified included:
a.
Proper review by the PSRC for 10 CFR 50.59 criteria.
b.
Adequate written procedures detailing steps for accomplishing the changes.
c.
Acceptance test records were reviewed by the PSRC.
d.
Operating procedures and as-built drawings if applicable were revised after the design changes are completed.
No items of noncompliance or deviations were identified.
5.
Requalification Training The inspector verified no changes to the program had occurred since the last time this item had been inspected. Additionally, the inspector ver-ified that regularly scheduled training lectures were being conducted using lesson plans that covered weak areas identified on the annual examinations.
The inspector reviewed training records for selected control room oper-ators, shift foremen, and plant management for copies of annual exams, per-formance evaluations and lecture series attendance.
No items of noncompliance or deviations were identified.
6.
Maintenance The inspector attempted to review the preventative maintenance program for this facility; however, no formal preventative maintenance program exists.
Current plant administrative procedures require formulation of a progran but due to the seismic question being unresolved, plant manage-ment has deferred developing a program until startup.
Currently vital equipment needed to maintain cold shutdown conditions is maintained by the surveillance program. The inspector reviewed the recent disassembly /
maintenance package for the diesel driven fire pump to verify adequate procedural controls exist.
Items checked were provisions for fire protec-tion, cleanliness, proper administrative approvals, O. C. " hold" points, functional testing, and proper record keepin.
-3-No items of noncompliance or deviations were identified.
7.
Reportable Event Followup The circumstances and corrective action described in the License Event Reports (LER) listed below were verified by the inspector through exami-nation of records, interviews with personnel, and examination of equipment.
The events have been reviewed by the licensee and reporting requirements were met.
79-03, Fire Water System Low Pressure Setpoint Drift:
Due to setpoint drift (low) the fire pumps automatically started at 41 psig versus no less than 45 psig as specified by the technical specifications.
The setpoint was adjusted and reset point moved so it could not affect the setpoint.
The switch will be replaced when a new part is available.
(open)
79-04, Refueling Building Ventilation Supply Valve Failed Closed:
Poor attachment of pivot arm to butterfly valve stem resulted in the valve failing closed degrading the building containment system.
The cause of the problem was determined to be the design of the lock-ing mechanism of the pivot arm to the valve stem. The licensee inspected similar units and found the Gas Treatment System Flow Control Valve had the same problem. The licensee has repaired the ventilation supply valve.
The flow control valve repair remains outstanding.
(open)
8.
Follovuo on IE Circulars and Bulletins The inspector verified that the plant staff had received the IE Circulars and Bulletins listed below. An examination of records and discussions with licensee representatives verified that appropriate corrective action was identified or taken as follows:
a.
Circulars The following Circulars are not applicable to Humboldt Bay and are closed:
79-16, Excessive Radiation Exposures to Members of the General Public and a Radiographer.
79-18, Proper Installation of Target Rock Safety-Relief: Humboldt Bay does not have Target Rock Valves installe.-
,
-4-79-23, Motor Starters and Contactors Failed to Operate: There are no Gould Breakers installed at Humboldt Bay #3.
79-24, Proper Installation and Calibration of Core Spray Pipe Break Detection Equipment on BWR's: Although Humboldt Bay #3 is a BWR, it's product line did not install Ccre Spray Pipe Break Detection Equipment.
The following Circulars are open pending review by the licensee for appropriate corrective action or have been deferred until startup:
78-06, 78-16, 78-17, 78-18, 78-19, 79-02, 79-04, 79-05, 79-10, 79-13, 79-17, '9-19, 79-20, 79-21, 79-22 79-09 and 79-15 are open pending inspection by a materials inspector.
b.
Bulletins The following Bulletins are either not applicable or are answered satisfactorily and are closed:
79-15, 79-20, 79-22, 79-24, 79-25, 79-28 The following Bulletins are open pending review by the licensee for appropriate corrective actions or have been deferred until startup:
76-01, 76-04, 78-03, 78-09, 78-12, 12A, 12B, 78-14, 79-01, 79-02, 79-03, 79-07, 79-08, 79-12, 79-14, 79-16, 79-18, 79-23, 79-26, 79-27 79-19 is pending inspection by a materials inspector.
No items of noncompliance or deviations were identified.
9.
Exit Interview The inspector met with licensee representatives (denoted in paragraph 1)
at the conclusion of the inspection on December 20, 1979. The purpose and scope of the inspection was summarized.
The licensee ns advised that no items of noncompliance or deviations were identified.