BVY-90-085, Informs That Sys Testing & Operator Training Successfully Completed & SPDS Declared Operable on 900813.Util Intends to Operate SPDS in Parallel W/Original Honeywell Gepac Plant Computer Until mid-Nov 1990

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Informs That Sys Testing & Operator Training Successfully Completed & SPDS Declared Operable on 900813.Util Intends to Operate SPDS in Parallel W/Original Honeywell Gepac Plant Computer Until mid-Nov 1990
ML20058P799
Person / Time
Site: Vermont Yankee Entergy icon.png
Issue date: 08/15/1990
From: Murphy W
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BVY-90-085, BVY-90-85, NUDOCS 9008200087
Download: ML20058P799 (1)


Text

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l r nVERMONT: YANKEE' NUCLEAR POWER CORPORATION- ,

BVY 90-085 3

Fer/ Read, Brattleboro, VT 0530?4002 y ,,,

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p[ ENGINEERING OFFICE

' A' 0 k8AIN STREET e/-

DodoN MA01740

-(TAB) T/9 6711 August 15, 1990 U.S. Nuclear Regulatory Commission.

Washington, D.C. 20555 '

Attention: Document Control Desk '

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References:

a) License No. DPR-28 (Docket No. 50-271) b) Letter, USNRC to VYNPC, NVY 89-356, " Revision of an Intermediate Date in the Implementation of Safety Parameter Display System (TAC No. 71953), dated 3/29/90 c) Letter, VYNPC to USNRC, BVY 90-082, " Implementation of.

Revision 4 of the Procedure Generation Package, dated 7/24/90

Dear Sir:

%bject:

Implementation of Vermont Yankee Safety Parameter Display System (SPDS)

By letter dated March 29, 1909 [ Reference.b)], USNRC approved the implemen-tation schedule for operability of the Vermont Yankee SPDS as " prior to the end of Cycle 14."_.The purpose of thic letter is to. inform you that. system testing and operator-training has been successfully completed snd the Vermont Yankee.

SPDS was declared operableLon August 13, 1990. The SPOS supports the Emergency

' Operating Proceoure'(EOP's) implemented on July 23, 1990 (Reference c)] and

' includes display terminals'in the station control room and the Technical Support Center, and available to the Emergency Operations Center.

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'We intend to operate the SPOS in parallel with the original Honeywell GEPAC plant computer until approximately mid-November 1990. At that time, the.

SPDS'will~have demenstrated its operation during periods of power operation and ,1

. refueling. The Honeywell computer will then be permanently retired from service

-during a' computer systems aui. age of approximately two weeks dJration.

L We trust that the above informati'n is satisfactory; however, should you have any questions or desire any add' onal information on ' his subject, please do not hesitate to contact Mr. Rota .. Sojka, Operations Support Manager.

( Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION da~ M Warren P. M rphy Senior Vic Preside. O erations R /df cc: tlSNRC Regional. Administrator, Region I

USNRC-Resident Inspector,'VYNFS USNRC Project Manager, VYNPS 4009200087 900815

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