ML20081G890
| ML20081G890 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/26/1983 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-28096-BSK, DER-83-64, NUDOCS 8311070224 | |
| Download: ML20081G890 (3) | |
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Arizona Public Service Company
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O p/ h P o Box 21606
- PHOENIX ARIZONA 85036
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October 26, 1983 ANPP-28096-BSK/RQT U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop, Director, Division of Resident, Reactor Projects and Engineering Programs
Subject:
Interim Report - DER 83-64 A 50.55(e) Potentially Reportable Deficiency Relating to Pressure Relief Safety Valves By Target Rock Failed To Meet Pre-Requisite Tests.
File: 83-019-026; D.4.33.2
Reference:
Telephone Conversation between P. Johnson and R. Tucker on September 28, 1983.
Dear Sir:
The NRC was notified of a potentially reportable deficiency in the ref erenced 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 fit.alized by February 3,1984, at which time a complete report will be submitted.
Very truly yours, CQL O LLk E. E. Van Brunt, Jr.
APS Vice President,
Nuclear Projects Management ANPP Project Director EEVB/RQT:ru Attachment ec: See Page Two 8311070224 831026 PDR ADOCK 05000529 i
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Oe Mr. T. W. Bishop DER 83-64 Page 2 cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, Jr.
G. C. Andognini J. A. Roedel D. B. Fasnacht A. C. Rogers B. S. Kaplan W. E. Ide J. Vorces J. R. Bynum D. D. Green /P. P. Klute A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen G. A. Fiore111 S. R. Frost J. Self D. Canady Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway - Suite 1500 Atlanta, Georgia 30339 i
es INTERIM REPORT - DER 83-64 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNCS UNIT 2 & 3 1.
Potential Problem During prerequisite testing a total of twenty-nine (29) of thirty (30) Safety Relief Valvea failed to meet the requirements of APS station test 73ST-92Z01. The reported condition was that the subject valves failed to reseat after set point was achieved and consequently provided excessive seat leakage. The tag numbers of the faulty valves will be included in the final report.
The Safety Relief Valves were supplied by Target Rock Corporation under purchase order 13-JM-691.
II.
Approach To and Status of Proposed Resolution Bechtel engineering has requested the services of a Target Rock field representative to inspect the subject valves.
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 Febrcary 3,1984.
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