ML20108C105
| ML20108C105 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/29/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANP-31008-TDS, ANPP-31008-TDS, DER-84-74, NUDOCS 8411160377 | |
| Download: ML20108C105 (3) | |
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/ECEJVED 1:nc' Arizona Public Service Company i92%1gy-g /N O 07 October 29; 1954 ANPP-31008-TDS/ N IIVisC U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek; California 94596-5368 Attention: Mr. T. W. Bishop; Director Division of Reactor Safety and Projects
Subject:
Interim Report - DER 84-74 A 50.55(e) Potentially Reportable Deficiency Relating To Class 1E Inverters Supplied By Elgar.
File: 84-019-026; D.4.33.2
Reference:
Telephone Conversation between C. Sorenson and T. Bradish on September 28; 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 November 15, 1984; at which time a complete report vill be submitted.
Very truly yours, CJLJL.L_
NL E. E. Van Brunt, Jr.
APS Vice President Nuclear Production ANPP Project Director EEVB/TRB/nj Attachment cc: See Page Two a
8411160377 841029 PDR ADOCK 05000528 S
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' Mr. T. W. Bishop DER-84-74 Page Two ec:
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 A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Patterson 5
R. W. Welcher H. D. Foster j
D. R. Hawkinson 4
R. P. Zimmerman L. Clyde M. Woods T. J. Bloom
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B. S. Kaplan Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, CA 30339
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. INTERIM REPORT - DER 84-74'
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POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC. SERVICE COMPANY ( APS)
PVNGS UNIT.l' 4
I.
Potential-Problem' 7.
.During startup testing of Class 1E, 120V AC inverters furnished by Elgar Corporation;-the inverters IEPNAN11 and 1EPNBN12 blew bridge fuses (A50P200) during loading. Also, the alarm logic board failed during starting of the inverter 1EPNDN14..The inspection and testing of inverter panels IEPNAN11; _1EPNBN12, IEPNCN13; 1EPNDN14 by APS Startiup Engineering is in progress.
.II.
Approach To and Status Of Proposed-Resolution 4
The results of. inspection and testing of all Class 1E'120V AC inverters panels in Unit 1 shall be evaluated to determine the a
reportability and corrective action required.
III.
Projected Completion of' Corrective Action and Submittal of the Final Report The complete evaluation and-final report are forecast to be 4
completed by November 15;.1984.
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