ML20074A643
| ML20074A643 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/21/1983 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Sternberg D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-23560-RQT, DER-83-17, NUDOCS 8305130239 | |
| Download: ML20074A643 (3) | |
Text
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i CEP@c vsn Arizona Public Service Company bd] f~3 P.O. Box 21666 + PHOENIX. ARIZONA 85036 2.'
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April 21, 1983 ANPP-23560-RQT/BSKJCf;.y.,.
i U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention: Mr. D. M. Sternberg, Chief Reactor Projects Branch 1
Subject:
Interim Report - DER 83-17 A 50.55(e) Potentially Reportable Deficiency Relating to Fire Protection Switches By ITE Gould Failed To Meet The Requirements Of TMI Task 18A File: 83-019-026; D.4.33.2
Reference:
Telephone Conversation between P. Narbut and R. Tucker on March 4, 1983
Dear Sir:
The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. At that time, it was estimated that a determination of reportability would be made within thirty (30) days.
.Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by May 19, 1983, at which time a complete report will be submitted.
Very truly yours,
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E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects Management ANPP Project Director
'EEVB/RQT:db Attachment cc: See Attached Page 2 8305130239 830421
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i U. S. Nuclear-Regulatory Commission ANPP-23560-RQT/BSK April 21, 1983 i:
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Richard DeYoung, Director
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Office of Inspection and Enforcement c
- U. S. Nuclear Regulatory Commission Washington, D. C. 20555 i
T. G. Woods, Jr.
G. C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. R. Bynum P. P. Klute/D. D. Green A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher l
R.'M. Grant D. R. Hawkinson f
L. E. Vorderbrueggen I
G. A. Fiorelli i
' Records Center i
Institute of Nuclear Power Operations
-1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 1
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INTERIM REPORT - DER 83-17 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 2 I.
POTENTIAL PROBLEM The Main Control Board (MCB) System provides support for controls and displays which comprise the primary interface between the operator and the power plant. Design Change Packages (DCP's)
ISE-ZJ-045, 2CE-ZJ-045 were issued to establish compliance with TMI Task 18A (Ref. SER 7.4.2 and 10CFR50 Ap. R).
The DCP's incorporate disconnect switches to disconnect devices on the MCB from the second point of control and to provide local controls at the load centers to accomplish a hot shutdown due to a postulated fire in the control room.
During QC walkdown of DCP 2CE-ZJ-045 (Unit 2), safety-related switches were found to be cracked, plastic pieces were broken or missing and one switch had two (2) terminal points detached. These deficiencies were detected in the following equipment:
(a) 2E-PGB-L32C2 - Load Center (b) 2E-PGB-L32B2 - Load Center (c) 2E-PGB-L32C4 - Charging Pump (d) 2E-PGB-L34B2 - Load Center - Main Feeder Breaker (e) 2E-PGB-L32C2 - 480V MCC (f) 2E-PGB-L36D4 - Main Essential Lighting Panel The subject switches, installed by ITE Gould and Bechtel Construction, were purchased from Brown Boveri Electric, Inc., and manufactured by ITE Gould.
II.
APPROACH TO AND STATUS OF PROPOSED RESOLUTION Bechtel Engineering is currently corresponding with Brown Boveri Electric to disposition this condition.
III. PROJECTED COMPLETION OF CORRECTIVE ACTION AND SUBMITTAL OF THE FINAL REPORT Evaluation of this condition and submittal of the Final Report is forecast to be completed by July 19, 1983.