ML20095G941
| ML20095G941 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 08/16/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-30260-TDS, DER-84-45, NUDOCS 8408280263 | |
| Download: ML20095G941 (3) | |
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RECEIVED
?:r.c Arizona Public Service Company August 16, 1984 SEGION ygp ANPP-30260-TDS/TRB I
l-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 n
Subject:
Interim Report - DER 84-45 A 50.55(e) Potentially Reportable Deficiency Relating To Spot Welding On Skid Mounted Indication And Control.
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File: 84-019-026; D.4.33.2
Reference:
. Telephone Conversation between D. Hollenbach and T. Bradish on July 17, 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 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 September 28, 1984, at which time a complete report will be submitted.
Very ;'tly yours g
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VCtLL Ad 4.
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,in Brunt, Jr.
APS Vice esident Nuclear Pt 'uc tion ANPP Project Director EEVB/TRB:nj Attachment cc: See Page Two 8408200263 840816 PD9 ADOCK 05000528 S
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l Mr. T. W. Bishop DER'84-45 Page Two cc:
Richard DeYoung, Director Office of. Inspection' and Enforcement U. S. Nuclear Regulatory Commission Washington, 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 M. Woods T. J. Bloom t
Records Center l
Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, GA 30339 9
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4 INTERIM REPORT - DER 84-45 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY-(APS)-
PVNGS UNITS 1, 2 1
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Potential Problem During static seismic testing of radiation monitors at the suppliers facility, Kaman Instrumentation, a mechanical failure was noted on the Skid Mounted Indication and Control
_SMIC) units revealing defective' welds on the retaining bolt
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studs. Failure of the bolt stud welds may allow the SMICs to become a missile hazard during a seismic event. The affected radiation monitors identified by Kaman having the attached SMIC units are:
1JSQBRE145 1JSQNRE141 2JSQNRE141 1JSQBRE146 1JSQNRE142 2JSQNRE142 2JSQBRE145 1JSQNRE143 2JSQNRE143 2JSQBRE146 1JSQNRE144 2JSQNRE144 II.
Problem Resolution Plan Kaman Instrumentatf or is preparing a torque test for site testing of stud welcs on the SMIC units. This test is to ensure the stud weld integrity of the SMIC units attached to the radiation monitors. An Investigation Request (IR) will be developed to use Kaman's test procedure to check the noted radiation monitors.
The results of this test will provide the information necessary to disposition this potential problem.
The following radiation monitors noted by Kaman Instrumentation are not safety related and do not present themselves as a reportable condition.
1JSQNRE141 2JSQNRE141 1JSQNRE142 2JSQNRE142 1JSQNRE143 2JSQNRE143 1JSQNRE144 2JSQNRE144 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 September 28, 1984.
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