ML20091E475
| ML20091E475 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 05/17/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-29529-TDS, DER-84-22, NUDOCS 8406010259 | |
| Download: ML20091E475 (3) | |
Text
.g
,w.
6. - v i.o... ;
- L.i 4'
s Arizona Public Service Company En !"
23 Tl: p-l May 17, 1984r.,
A NPP-29529-TDS /TRB "
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
Subject:
Interim Report - DER 84-22 A 50.55(e) Potentially Reportable Deficiency Relating to The Unit 1 CEA Shroud Support Was Found Contaminated With Oil.
File: 84-019-026; D.4.33.2 Re ference : Telephone Conversation between T. Young and J. Cook on April 20, 1984
Dear Sir:
The NRC was notified of a potentially reportable deficiency in the referenced telephone conversation. At that time, it was estimated that a determinstion of reportabilit vould be made within thirty (30) days.
Due to the extcasive investigation and evaluation required, an Interim Report is attached. It is now expected that this infornation will be finalized by August 3,1984, at which ti.ne a complete report will be cubmitted.
Very truly yours, i
'~ ] -
cum
%( -
E. E. Van Brunt, Jr.
APS Vice President, Nuclear ANPP Project Director EEVB/TRB:db Attachment cc:
See Page Two 8406010259 840517 PDR ADOCK 05000529
/[-17 j
S PDR
.* n Mr. T. W. Bishop DER 84-22
-Page Two ec:
Richard DeYoung, Director Office of Inspection and Enforcement
- U. S. Nuclear Regulatory Conunission Washington, D. C. 20555 T. G. Woods, Jr.
D. B. Karner W. E. Ide
.D. B. Fasnacht A. C. Rogers B. S. Kaplan L. A. Souza D. E. Fowler J. Vorees J. R. Bynum J. M. Allen P. P. Klute A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson L. E. Vorderbrueggen G. A. Fiore111 S. R. Frost J. Self D. Canady Records Center Institute of Nuclear Power Operatiens 1100 Circle 75 Parkway, Suite 1500 Atlanta, CA 30339
---.N..-..-
---x w
i
~
u.
c p l*,.
INTERIM REPORT' DER 84-22
'POIENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY-(APS)
PVNGS UNIT.1 I.
Potential-Problem During the day. shif t of March 10, 1984 it was determined that the Unit I upper' guide. structure had some unknown contamination on the
. top surface of the CEA Shroud support-plate.
Initial investigation into the nature of the contamination revealed.that the substance was most likely. oil that had leaked from any of several candidate devices. Depending on the chemical nature of the oil, coupled with the susceptibility of stainless steel to stress corrosion cracking,
- C-E was concerned that contamination of this type could pose a
. serious problem.'
C-E obtained swipes of the contaminated areas and samples of the various suspect oils from the nearby devices and-returned to Windsor for analysis.
?
Since tNe oil spill was in the direct vicinity of two of the CEA.
Shroud tie rods, the contaminant was removed as quickly as possible to mitigate the consequences of any further contaminaton by seepage into inaccessible areas. The areas were cleaned with clean towels using DR-60, an acceptable solvent. Swipes _were again taken of the
}
clean area and returned to Windsor for analysis.
4 p
The initial analysis of the swipes taken from the_ contaminated' areas depicted an oil high in both chlorides and sulphur.' The detailed 4
d analysis of the swipes taken from the surface of the shroud showed a chloride level of 440 ppa, and a sulphur level of 6180 ppm, well natside the acceptable ranges for these_ elements.
j The_ detailed results of the oil analysis produced on1'y one positive match, that of the polar crane scissors jack, and confirmed that no-C-E equipment could have been the source of the contamination.
II.
Approach To and Status of Proposed Resolution Bechtel Engineering is currently ' investigating' this problem to-determine the reportability and corrective action.
III. Projected' Completion of Corrective Action and Submittal of the Final.
I Report Evaluation of this condition and _ submittal of the Final Report is
{
forecast to be completed by August 3,1984.
--.a
,-----,1-w-
1._---_---_-a,---_-
---a--. - - - - - - -, - - -
_u:--,-m-----,--u---------
a----.-a w-