ML20112D101

Ro:On 850114,fire Detection Sys Inoperable Due to Malfunction of Security Computer.Continuous Fire Watch Already Established at Time of Sys Inoperability,Per Tech Spec

ML20112D101
Person / Time
Site:	Palo Verde
Issue date:	03/19/1985
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
ANPP-32180-EEVB, NUDOCS 8503220230
Download: ML20112D101 (1)

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3 Arizona Nuclear Fower Prnject P.o. box 52034 e PHOENIX. ARuvreA 8%Ct . 04 ANPP-32180-EEVB/WFQ March 19, 1985 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 1 Docket No. STN 50-528; License No. NPF-34 10 CFR 50.72 Potentially Reportable Item File: 85-056-026: G.I.01.10

Dear Sirs:

The NRC Operations Center was notified at approximately 13:13 MST on January 14, 1985 via the Emergency Notification System of a potentially reportable occurrence related to the inoperability of the fire detection system resulting from a malfunction of the security computer.

As a result of further investigation and evaluation of the occurrence, we have deter-mined that the event was not reportable within the requirements of either 10 CFR 50.72 or 10 CFR 50.73 because at the time of the fire detection system in-operability, a continuous fire watch had already been established in accordance with the PVNGS Technical Specifications. This response is provided to close the record on this occurrence.

If you have any questions or concerns, please contact me.

Very truly yours, A

QL' .

CL L.L A E. E. Van Brunt, Jr.

Executive Vice President Project Director l

EEVB/GEC/mb cc: J. B. Martin R. P. Zimmerman E. A. Licitra A. C. Gehr V

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