ML20080D792

Interim Deficiency Rept DER 83-49 Re Diffuser Bolts Broken/ Loose in Reactor Coolant Pump.Initially Reported on 830715. Bechtel Engineering Corresponding w/C-E to Provide Technical Justification for Corrective Action.Final Rept by 831129

ML20080D792
Person / Time
Site:	Palo Verde
Issue date:	08/10/1983
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-27593, DER-83-49, NUDOCS 8308300587
Download: ML20080D792 (3)

Text

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HEcan~n

-),7.c Arizona Public Service Company Po BOX 21666

• PHOENIX, ARIZONA 85036 f] s f ,,

• 28, r y p. , *,

August 19, 1983 s ANPP-27593-RQT/BSK 1.T3;m .

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 83-49 A 50.55(e) Potentially Reportable Deficiency Relating to Diffuser Bolts Broken / Loose In Reactor Coolant Pump File: 83-019-026 D.4.33.2

Reference:

Telephone Conversation between P. Narbut and R. Tucker on July 15, 1983

Dear Sir:

The NBC 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 November 29, 1983, at which time a complete report will be submitted.

Very truly yours,

\

9.9. d E. E. Van Brunt, Jr.

ni APS Vice President Nuclear Projects Management ANPP Project Director 1

EEVBJr/RQT:skc l Attachment cc: See Attached Page 2 l

8308300587 830819 PDR ADOCK 05000528 S PDR

$f97

U. S. Nuclear Regulatory Commission Attention: Mr. D. M. Sternberg, Chief ANPP-27593-RQT/BSK August 19, 1983 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. 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 R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen G. A. Florelli Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway - Suite 1500 Atlanta, Georgia 30339 J. G. Self S. R. Frost l

e 4 .

INTERIM REPORT - DER 83-49 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT #1 I. Potential Problem Post inspection of Unit #1 Reactor Coolant Pump. Tag Number IMRCEP01A, revealed the following damage occurred during hot functional testing:

A. Fifty percent (50%) of all diffuser bolts were loose.

B. Three (3) diffuser bolts were broken and the pieces are missing.

C. The diffuser and suction pipe areas were damaged.

II. Approach To and Status Of Proposed Resolution Bechtel Engineering is corresponding with CE to provide reportability disposition and technical justification for corrective action.

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 November 29, 1983.