ML20086E167
| ML20086E167 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 11/04/1991 |
| From: | Withers B WOLF CREEK NUCLEAR OPERATING CORP. |
| To: | Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20086E148 | List: |
| References | |
| WM-91-0155, WM-91-155, NUDOCS 9111270076 | |
| Download: ML20086E167 (2) | |
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' NUCLEAR OPERATING CORPORATION Bart D. W:thers President and CNef Enocut.ve oNer November 4,1991 VM 91-0155 R. D. Martin, Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011
Reference:
Letter VM 91-0124 dated August 29, 1991 from 5
B. D. Withers, WCNOC to the NRC
Subject:
Docket No.
50-482:
Clarification of Response to Violation 9113-01 Deat nr. Martin:
The purpose of this letter is to provide clarification of Wolf Creek Nuclear Operating Corporation's (WCNOC) response to violation 9113-01.
The clarification concerns the weekly inspection of accessible locked valves to verify locking devices are properly installed.
As discussed below, WCNOC intends to perfonn this inspection in plant Modes 4 and above.
This clarification was discussed with the NRC Resident Inspector on October 21, 1991.
On June 6,
- 1991, ar, NRC inspector found that the locking chain for valve AL-V063 for the turbine driven auxiliary feedwater pump discharge header to Steam Generator
'D' could be removed form the handwheel without breaking the green locking tab.
Violation 9113-01 was subsequently issued.
As part of WCNOC's corrective action for this violation, a weekly inspection of accessible locked valves was initiated to verify locking devices are properly installed.
This inspection consists of selecting one or two systems and conducting a walkdown of those system valves listed in procedure ADM 02-102, "Cor.i rol of Locked Component Status" WCNOC has determined that when the plant is in Modes 5, 6,
or with no fuel in the reactor vessel, performance of these weekly inspections places an additional burden on the operating crews, The additional burden results from situations in which the locked valve may be out of position to support clearance orders or other plant conditions and personnel resources to support a refueling outage. Additionally, ADM 02-102 requires that prior to Mode 4 entry, the locked valve, breaker and component lists be completed and independently verified.
9111270076 911122 PDR ADOCK 05000482 G
PDR PO. Box 411 Durhngton, KS 66839 Phone (316) 364 H831 An Equal Oov><tunity E'mployer M F Hc VE T
VM 91-0155 c.
Page 2 of 2 If you have any questions concerning this matter, please contact me or Mr. T. E. Cribbe of my staff.
Very truly yours, e
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- I Bart D. Withers President and Chief Executive Officer BDW/jra cc:
L. L. Gundrum (NRC)
A. T. Howell (NRC)
W. D. Reckley (NRC)
Document Control Desk (NRC)
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