ML20204J440
| ML20204J440 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 07/11/1986 |
| From: | Tucker H DUKE POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8608110091 | |
| Download: ML20204J440 (2) | |
Text
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Cm6 DUKE POWER GOMPANY P.O. BOX 33180 CHARLOTTE, N.C. 28242 HALD. TUCKER nu, PHONE g; } *, 3 (7M) 37Mut
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-mio-July 11, 1986 Dr. J. Nelson Grace, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323
Subject:
Catawba Nuclear Station RII:PKV/THS 50-413/86-17, 50-414/86-18
Dear Dr. Grace:
Please find attached our response to Violation 414/86-18-01 which was identified in the subject Inspection Report.
Very truly yours,
/
h Hal B. Tucker LTP:slb Attachment xc: NRC Resident Inspector Catawba Nuclear Station 8600110091 860711 DR ADOCK 0500 4
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A DUKE POWER COMPANY RESPONSE TO VIOLATION VALVES NOT PROPERLY LOCKED f
414/86 01 Technical Specification 6.8.1 requires written procedures to be established, j
implemented, and maintained covering the applicable procedures recommended 4
in Appendix A to Regulatory Guide 1.33, Revision 2.
Various licensee oper-ating procedures require valves to be in specified positions and locked in that position.
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Contrary to the above, on April 17, 1986, valves identified as 2SM70, 2SM71, 2SM73, 2SM142, 2CF95, 2CF97, 2CA119, 2CA120, 2BW10, 2WE22, 2ND53, 2NV65, and 2NV76 were not locked as specified in applicable operating procedures.
This is a Severity Level IV violation (Supplement I).
Response
i 1.-
Admission or denial of violation Duke Power Company admits the violation.
t 2.
Reasons for violation if admitted The method used to secure these valves in their locked position is to use a chain and lock to secure the operating handwheel.
l Due to the type of operating handle (a straight bar) on most of i
these valves, it is difficult to secure the valve to prevent it j
from being repositioned. A contributing cause is the level of attention to detail of the operator at the time the lock and 8
chain are placed. Valves 2BW10 and 2ND53 are circular type handwheels. Valve 2BW10 was not required to be properly locked at the time the inspector observed.the valve due to it being tagged as part of an equipment isolation, and chain and lock was removed to verify tagged position.
3.
Corrective actions taken and results achieved j
All valves were inspected by sh[ft personnel when the inspector identified these valves. All valves were in their proper position.
1 Some of these identified valves were found to be properly locked and those that were not were relocked.
l l
4.
Corrective actions to be taken to avoid further violations l
A.
A new method of securing the valves with straight bar type handwheels is being investigated.
1 B.
Additional emphasis on properly locking valves is being placeJ l-by discussion of this violation with all shif ts at a Shif t i
Supervisor's meeting. Also, in a requal segment of operator i
training, a topic of the philosophy on locking / locked valves will be included.
5.
Date of full compliance Duke Power will complete corrective actions by November 1, 1986.
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