ML20083P928
| ML20083P928 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 04/06/1984 |
| From: | Van Brunt E, Van Vrunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-2923-BSK, ANPP-29239-BSK, DER-84-16, NUDOCS 8404200268 | |
| Download: ML20083P928 (3) | |
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s Arizona Public Service Company 90-53T 523 330 April 6, 1984 ANPP-29239-BSK/TRB y
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M Region V 3
Creekside Oaks Office Park
[U 1450 Maria Lane - Suite 210
~T Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop, Director Division of Resident Reactor Projects and Engineering Programs
Subject:
Interim Report - DER 84-16 A 50.55(e) Potentially Reportable Deficiency Relating to ESFAS Relay Cabinets Base Plates File: 84-019-026; D.4.33.2 Re ference: Telephone Conversation between P. Narbut and T. Bradish on March 21, 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 June 29, 1984, at which time a complete report will be submitted.
Very truly yours, QM 4tLL E. E. Van Brunt, Jr.
APS Vice President, Nuclear ANPP Project Director EEVB/TRB:ru At tachment ec: See Page Two K0
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i o-Mr. T. W. Bishop DER 84-16 Page Two cc:
Richard.DeYoung, Director Of fice of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 T. G. Woods, 'Jr.
W. E. Ide D. B. Fasnacht A. C. Rogers B. S. Kaplan L. A. Souza J. Vorees J. R. Bynum 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. Fiore11i S. R. Frost J. Self D. Canady Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, CA 30339 i
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INTERIM REPORT - DER 84-16 POIENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1, 2, & 3 I. Potential Problem During a review of the as-installed condition and available vendor data related to the ESFAS Auxiliary Relay Cabinets, installed at el 140'-0" in the control b1dgs. for Units 1, 2 and 3, a deficiency was discovered with the cabinet baseplates used to attach the cabinet to the floor embed plates. The vendor installation drawing E-SYS80-412-800, requires the cabinet baseplates A, B=and C_to be 1/4 inch thick and the plates as-installed do match the drawing.
However, the ESFAS Qualification Document (N001-1.01-350) received in October 1983 after the cabinets were installed requires these plates to b'e 1/2 inch - thick. This. discrepancy;could result in stresses in Plates A, B and C that exceed allowables during a seismic event.
II. Approach To and Status of Proposed Resolution Bechtel' Engineering isi currently corresponding with Combustion Engineering to determine reportability and technical'_ justification for corrective action.
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 June 29, 1984.
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