ML20080D929
| ML20080D929 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 08/19/1983 |
| 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-27594-RQT, DER-83-50, NUDOCS 8308300647 | |
| Download: ML20080D929 (3) | |
Text
r L(,, s A. Y 12CSVED M'C Arizona Public Service Company PO. BOX 21666 o PHOENIX, ARIZONA 85036 August 1,19y 24 m 12: 3 ;
ANPP-27594-RQT/BSK IE3:Uti V 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 83-50 A 50.55(e) Potentially Reportable Deficiency Relating to Reactor Coolant Pump Has Broken Impeller Blade File: 83-019-026 D.4.33.2
Reference:
Telephone Conversation between T. Young and R. Tucker on July 18, 1983
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, 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, C4 AA._
A L A.A jN l
E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects Management ANPP Project Director 1
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Attachment cc: See Attached Page 2 8308300647 830819 gDRADOCK 05000528 PDR Xf')
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I U. S. Nuclear Regulatory Commission j
Region V I
. August 19, 1983 Page 2 cc:
Richard DeYoung.. Director Office of. Inspection and Fnforcement 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 I
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P. P. Klute/D. D. Green j
A..C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. 3. Vorderbrueggen t
G. A. Fiorelli j
Records Center i
Institute of Nuclear Power Operations 1100 Circle 75 Parkway - Suite 1500 Atlanta, Georgia 30339 J. G. Self i
S. R. Frost i
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INTERIM REPORT - DER 83-50 POTENTIAL REPORTABLE. DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT #1 I.
Potential Problem A.
Two (2) blades had large pieces (6x4 and 8x10) missing. Missing pieces are believed to be in the RCP System.
B.
There was a crack approximately ten inches (10")
long on one impeller in the vicinity of the upper root area.
C.
Damage to the diffuser wear ring.
D.
Evidence of cavitation damage to five (5) blades of the diffuser.
I 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 l
Evaluation of this condition and submittal of the Final Report is forecast to be completed by November 29, 1983.
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