ML20093F699
| ML20093F699 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/29/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Biship T, Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-29867-TDS, DER-84-40, NUDOCS 8407230086 | |
| Download: ML20093F699 (3) | |
Text
_
- Y s.
~
liECElVED HRC Arizona Public Service Company
.336 E - 5 al 1: pr:
i June 29,19849EGIONvgp ANPP-29867-TDS/TRB i
I U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop, Director-Division of Resident Reactor Projects and Engineering Programs r
Subject:
Interim Report - DER 84-40 A 50.55(e) Potentially Reportable Deficiency Relating To Unit 2 Auxiliary Feedwater Pump Has Corrosion.
File: 84-019-026; D.4.33.2
Reference:
Telephone Conversation between J. Ball and T. Bradish on June 5, 1984 i
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.
4 Due to *.he extensive investigation and evaluation required, an Interim Report is attached. It is now expected that this information will be finalized by September 21, 1984, at which time a coep1ete report will be submitted.
Very truly
- urs, CLLL.
/\\
E. E. Van Brunt, Jr.
1 APS Vice President Nuclear Production ANPP Project Director EEVB/TRB:db Attachment cc: See Page Dro i
0407230086 840629 PDR ADOCK 05000529 8
PM I)
ZE-J 7
Mr. T. W. Bishop DER 84-40 Page-Two cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washingtnn, D. C. 20555 T. G. Woods, Jr.
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. Vorees J. R. Bynum J. M. Allen J. A. Brand A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson L. E. Vorderbrueggen R. P. Zimmerman S. R. Frost J. Self D. Canady T. J. Bloom Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, GA 30339 I
i
/
e
~
v
~
,-w ve,-
- ~ -
o.
r-
+e e
q~
.~,
w
~ - ~ - -
.w*
. +
INTERIM REPORT - DER 84-40 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 2 I.
Potential Problem The impeller assemblies for Auxiliary Feedwater pumps 2-M-AFA-P01 and 2-M-AFB-P01 were observed to be corroded. Analysis of the corrosion deposits show the presence of bacteria associated with
" Microbiological 1y Influenced Corrosion", or MIC. Examination of the pump case for;the most. corroded impeller assembly, 2-M-AFA-P01 j
shows corrosion and evidence of MIC. The extent of damage and the extent of MIC in the auxiliary feedwater system is presently unknown.
j II.
Approach To and Status of Proposed Resolution Examination by dye penetrant, grinding, and x-ray of the pump case and x-ray of nearby pipe welds shows no damage from MIC.
Bechtel engineering is currently corresponding with the vendor on this problem to determine reportability and technical justification for corrective action.
III. Projected Completion of Corrective Action and Submittal of the Final f
Report i
Evaluation of this condition and submittal of the Final Report is Forecast to be completed by September 21, 1984.
i i
i 1
1 l
l
.A
'l
.