ML20128P306

Interim Deficiency Rept DER 85-24 Re Fractured Bolting on Diesel Generator Turbocharger.Initially Reported on 850610. Cooper Energy Preparing Response,Including Root Cause.Final Rept Will Be Submitted by 850814

ML20128P306
Person / Time
Site:	Palo Verde
Issue date:	07/10/1985
From:	Van Brunt E, Vanbrunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
ANPP-32974-TDS, DER-85-24, NUDOCS 8507260374
Download: ML20128P306 (3)

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Arizona Nuclear Tbwer Project R

P.O. BOX 52034 e PHOENIX, ARIZONA 85072-2034 1985 JUI. I5 PH I: 2tf July 10, 1985 REGl0flVlf.F ANPP-32974-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 85-24 A 50.55(e) Potentially Reportable Deficiency Relating To Fractured Bolting On Diesel Generator Turbocharger File: 85-019-026; D.4.33.2

Reference:

Telephone conversation between R. Sorensen and T. Siegfried on June 10, 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.

Due to the extensive investigation and evaluation required by Cooper Energy, an Interim Report is attached. It is now expected that this information will be finalized by August 14, 1985, at which time a complete report will be submitted.

Very truly yours, EE L L A/rgg E. E. Van Brunt, Jr.

Executive Vice President Project Director EEVB/TPS/nj Attachment cc: See Page Two 8507260374 850710 PDR ADOCK 05000528 S PDR h "l

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Mr.' D. F. Kirsch DER 85-24 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.lD. 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

4 - 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

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. INTERIM REPORT - DER 85-24' POTENTIAL REPORTABLE DEFICIENCY ARIZONA NUCLEAR POWER PROJECT PVNGS' UNITS 1, 2, 3 I. Potential Problem

- Fractured bolting was observed on the vertical' bolts which hold the turbocharger to the diesel (Unit 1, Cooper Energy Diesel Generator). This has 'been . repaired' per EER 85-DG-028.

ANPP evaluation has determined that bolt replacement is required

, for Units 2 and 3. Refer to Plant Change Request 85-13-DG-026.

II.. Approach To and Status Of Proposed Resolution Bechtel Engineering is currently corresponding with Cooper Energy to determine reportability and technical-justification for corrective

^ 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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