ML20126B193
| ML20126B193 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 12/17/1992 |
| From: | Tuckman M DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9212220005 | |
| Download: ML20126B193 (7) | |
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i Duke kwr Company AfS. n rw<v
. Caraba Nuclear Generation Department nee Pressdenl U00 Concord Road (803)MIJ205 O!! ice s
1brk, SC 29745 (bO3)MIJ426 hx DUKEPOWER December 17,1992 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555
Subject:
Catawba Nuclear Station Docket Nos. 50-413 and 50 414 Request For Commitment Date Extensions A self-initiated audit of violation response commitments was conducted by Catawba Nuclear Station Regulatory Compliance.
.This audit identified one (1) Violation commitment and two (2) Inspector Follow-up Item commitments which will not be completed prior to the committed due date.
Further investigation determined the current status of these commitments and the reasons for exceeding the committed-due dates.- Please find the results of this investigation and the requests for extension on Attachment A.
Very truly yours, h
- h. W W %
M.S. Tuckman Attachment 21".124 y
9212220005 921217 t.
PDR-ADOCK 05000413 G
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3 U.S. Nuclear Regulatory Commission December 17,1992 Page 2 xc:
S.D. Ebneter Regional Administrator, Region ll i
R.E. Martin, ONRR W.T. Orders 1'
Senior Resident inspector i
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4-g U.S. Nuclear Regulatory Commission December 17,1992 Page 3
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R.L. Gill J
R.O. Sharpe M.E. Patrick A.V. Carr NCMPA-1 NCEMC SREC PMPA Group File: CN 815.01 Document Control: 815.01 J
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CATAWBA NUCLEAR STATION j
VIOLATION 50-413/414, 90-201-A3 (CNS #8056)
Mr. Tuckman's letter, dated August 22,1991 (Reply to Notice of Violation, page 7),
4 stated that the Power Delivery Group's Priority 2 procedure upgrade involved thirty-five (35) procedure upgrades and the development of five (5) new procedures.-The estimated completion date was December 31,1992.
Current Status:
Twenty-five (25) of the original thirty-five (35) procedure i
upgrades and the development of all five (5) new procedures have been completed, leaving ten (10) procedureupgradesremaining. An additionalnew procedure j
has been identified for development since the submittal of the August 22,1991 reply.
Reason For Extension:
The Catawba - Nuclear Station reorganization included provisions to merge the Power Delivery group into the j
existing Instrumentation & Electrical (IAE) group, tharc' ore the former Power Delivery group procedures _ have been enhanced beyond what was originally planned to improve these procedures to IAE standards. These additional enhancements include field validation prior to procedure approval, -meeting the requirements of the Procedure Writer's Guide and the Administrative Policy Manual.
j Requested Extension:
We request an extension to complete the thirty-five (35) procedure upgrades anri the six (6) new procedures by January 31,1993.
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CATAWBA NUCLEAR STATION INSPECTOR FOLLOW-UP ITEM 50-413/414,92-01-07 1
i FINDING NUMBERS 6 & 7 (CNS # 8886 & 8887)
Mr. Tuckman's letter, dated May 14,1992 (Reply to an Inspector Follow-up Item, Findings 6 & 7), stated that a comprehensive study to evaluate voltage concerns associated with the 120VAC and 125VDC Vital Instrumentation and Control Power Systems (Finding #6), and that a comprehensive study of the 125VDC Vital l
Instrumentation and Control Battery Charger capacity (Finding #7) will be completed by December 18,1992.
Current Status:
An administrative restriction has been established to restrict placing the plant in a configuration where an 825 AH Vital instru' mentation and Control Battery feeding the two load channels would be declared inoperable and the LCO time 4
period for this configuration would be seventy-two (72) hours in stead of ten (10) days as stated in the Catawba Technical Specifications.
1 A study by Instrumentation and Electrical Engineering to eliminate unnecessary conservatism in the 125VDC Vital l
Instrumentation and Control (l&C) Battery loading database is underway at this time. During refueling outage 1EOC6, l
additional testing was conducted to measure Vital I&C Battery load under simulated worst-case design basis l
conditions. Component Engineering is currently compiling and formatting the test data so that it may be used in the battery sizing, battery charger sizing, and voltage drop analytical models. in addition, Systems Engineering is currently compiling information which documents the configuration of plant systems and equipment during the tests.
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CATAWBA NUCLEAR STATION j
l INSPECTOR FOLLOW-UP ITEM 50-413/414,92-01-07 i
FINDING NUMBERS 6 & 7 l
(CNS # 8886 & 8887)
Reason For Extension:
Several events have occurred which have delayed progress toward resolving the subject finding. First, a substantial amount of effort and resources wore expended to provide 1
a response to EDSFI Deviation 50-413/414, 92-01-06. This involved extensive research and meetings with personnel representing various divisions throughout the company to develop a resolution that was consistent among the nuclear stations and adequately addressed the concerns in the deviation. Second, unforeseeable complications developed with the 125VDC Diesel Auxiliary Power Battery Chargers which required immediate attention by instrumentation and 3
Electrical, Systems, and Component Engineerin0. Finally, a 10CFR Part 21 Notice was issued-by Nuclear Logistics incorporated to alert users of GNB Industrial Battery Company's NCX-series of flooded, stationary cells that they fail to meet the published one-minute rates (load and end voltage profiles). It will be necessary to obtain additional information concerning this issue in order to accurately and i
completely revise the voltage drop and battery sizing analytical models.
Requested Extension:
We request an extension to complete the above analytical models by March 15,1993.
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