ML20132B922
| ML20132B922 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 07/10/1985 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-32999-TDS, DER-85-23, DER-85023, NUDOCS 8507290075 | |
| Download: ML20132B922 (3) | |
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Arizona Nuclear Power Project 15 fig g. 3 P.O. BOX 52034 e PHOENIX. ARIZONA 85072-2034 g g ygt July 10, 1985 E Gi0ll W 'E ANPP-32999-TDS/TPS U. S. Nuclear Regulatory Commission Region V 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention:
Mr. D. F. Kirsch, Acting Director Division of Reactor Safety and Projects
Subject:
Interim Report - DER 85-23 A 50.55(e) Potentially Reportable Deficiency Relating To Diesel Generator Start Failure Due To Mechanical Valve Failure File: 85-019-026; D.4.33.2
Reference:
Telephone conversation between Jo Bianchi, Office of D. F. Kirsch, and P. Coffin on June 7, 1985
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.
Disc to the current corresponsdence with Cooper Energy and the evalua-tion required, an Interim Report is attached. It is now expected that this information will be finalized by August 14, 1985, at which time a report will be submitted.
Very truly yours, N
E. E. Van Brunt, Jr.
Executive Vice President Project Director EEVB/TPS/nj Attachment cc:
See Page Two 8507290075 850710 PDR ADOCK 05000528 I\\
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-a Mr. D. F. Kirsch DER 85-23 Page Two-cc:
Richard DeYoung, Director Office of Inspection and Enforcement.
U.~ S. Nuclear Regulatory Commission 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-B. S. Kaplan J. R. Bynum J. M. Allen D. Canady A. C. Gehr W. J. Stubblefield W. G. Bingham
-R.
L. Patterson R. W.' Welcher H. D. Foster D. R. Hawkinson R..P. Zimmerman 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, GA 30339
e.
s INTERIM REPORT - DER 85-23 POTENTIALLY REPORTABLE DEFICIENCY ARIZONA NUCLEAR POWER PROJECT PVNGS UNITS 1, 2, 3 I.
Potential Problem Diesel generators (Unit 1) supplied by Cooper Energy failed to attain required voltage, frequency, and speed within 10 seconds during testing using a single air start receiver.
Cause of the condition is attributed to slow actuation of the manifold tem-perature control valves.
The mechanical valve failure may be a generic design problem which affects Units 2 and 3 diesel generators.
Actions taken/to be taken for the Unit I diesel generator have'been addressed in our special' report, ANPP-32809 dated June' 10, 1985, to the NRC.
II.
Approach To and Status Of Proposed Resolution Bechtel Engineering is currently corresponding with Cooper Energy to determine reportability and technical justification for cor-rective action.
Cooper has been requested to prepare a response which also includes root cause.
III. Projected Completion of Corrective Action and Submittal of the Final Report The complete evaluation and final report are forecast to be completed by August 14, 1985.
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