ML20135G062
| ML20135G062 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 09/03/1985 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-33392-TDS, DER-85-25, NUDOCS 8509180098 | |
| Download: ML20135G062 (3) | |
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.fU Arizona Nuclear Power Project 065 ggp,,g !((h P O BOX 52034 e PHOENIX. ARIZONA 85072-2034 Septonber 3,1985 SEGlo,y yf' -
ANPP-33392-TDS/TPS U. S. Nuclear Regulatory Cocmission Region V 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention: Mr. D. F. Kirsch, Acting Director Division of Reactor Safety & Projects
Subject:
Interim Report - DER 85-25 A 50.55(e) Potentially Reportable Deficiency Relating To Auxiliary Feedwater Pump Trip on AFAS-2 Signal In 4
Cold Condition File: 85-019-026; D.4.33.2
Reference:
Telephone Conversation between A. Hon and T. Siegfried on August 6, 1985
Dear Sir:
The NRC was notified of a potentially re mrtable deficiency in the referenced telephone conversation. At tut time, it was estimated that a determination of reportability would be unde within thirty (30) days, September 5, 1985.
Due to the extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by September 26, 1985, at which time a cmplete report will be sulxnitted.
Very truly yours,
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A O
E. E. Van Brunt, Jr.
Executive Vice President Project Director EEVB/TPS/nj Attachment cc: See Page Two i
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ANPP-33392-TDS/TPS September 3, 1985 Mr. D. F. Kirsch DER 85-25 Page Two cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Camtission Washington, D. C.
20555 D. B. Karner W. E. Ide D. B. Fasnacht A. C. Rogers L. A. Souza D. E. Fowler T. D. Shriver C. N. Russo J. R. Byntun J. M. Allen D. Canady A. C. Gehr G. A. Hierzer W. G. Bingham R. L. Patterson H. D. Foster R. W. Welcher D. R. Hawkinson R. P. Zinmerman M. L. Clyde B. T. Parker T. J. Bloom D. N. Stover J. D. Houchen J. E. Kirby Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339
INTERIM REPORT - DER 85-25 POIENTIAL REPORTABLE DEFICIENCY ARIZONA NUCLEAR POWER PROJECT PVNGS UNIT 2 I.
Potential Problem Unit 2 Auxiliary Feedwater Pump AFA-P01 trips on overspeed whcn starting from a cold condition after receiving an AFAS-2 signal. 'Ihis failure was not repeated on subsequent AFAS-2 starts when the syst s was hot nor was it expericnced when starting on AFAS 1 either hot or cold. 'Ihe fact that Unit 1 has tested satisfactorily, this condition is isolated to Unit 2.
Unit 3 has not been tested at this time.
II. Approach To and Status Of Proposed Resolution Bechtel Engineering is studying this proble to determine the root cause of the failure, reportability, and technical justification for corrective action.
III. Projected Completion of Corrective Action and Submittal of the Final Report The complete evaluation and final report are forecast to be ccrupleted by Septmber 26, 1985.
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