ML19241A661

Discusses Significant Deficiency on 790425:security Access Computer Program Would Not Operate Sys,Thereby Permiting Unauthorized Personnel Access to Area.Deployed Security Personnel & Revised Computer Program

ML19241A661
Person / Time
Site:	North Anna
Issue date:	05/01/1979
From:	Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-79-114-002 NUDOCS 7907090248
Download: ML19241A661 (3)

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Mr. Jares P. O'Reilly, Director Serial No. 310 Office of Inspection and Enfercement PO/MIT:scj U. S. Nuclear Regulatory Commission Docket No. 50-338 Region II License No. NPP-4 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Under tFe provisions of 10CFR21, NR gion II was notified on 4/25/79 that a potential significant deficiency or substantini safety hazard exis'.ed at North Anna Power Station, Unit 1.

In ac. ordance with the reporting requirements of the above regu-lations, che following information is submitted:

A. Nate and address of reporting individual:

C. M. Stallings Vi rginia Electric & Power Company P. O. Box 26666 Richmond, Vtrginia 23261 B. Facility, activity, and/or component affected: Vepco Security Access Co=puter Program C. Name of firm supplying the compw et, activity or service: Pyrotronics Sentracon, 80 Wilson Way, Westwooo, Maine 02090 D. Description of defect, deficiency, or failure to comply: The computer program will not correctly operate the system thereby allowing vital area access to unauthorized personnel under certain circunstances.

E. Date of determination of reportability: April 25, 1979

' P. Similar components, activities, or services: None G. Corrective Action which has been, or is being or will be taken', the individual responsible and the length of time to complete the action:

Deploye_d security personnel to guard unoccupied vital area doors. The systen was then restored to operability by Technicians. The computer program is currently being revised by the vendor under the cognizance of station personnel.

99 005907090/2N

'OLTICL4L COPY 99/)2O/

vi.osutA ELactuic amo Powra Courant to Mr. James P. O'Reilly 2 H. Other infomation: A sof tware program failure caused the co=puter

- 87 stem to enter a "degt:aded mode" .in which the key card system operates independent of the coc:puter allowing unrestricted access to any card holder. This is the third occurrence of this type.

The previous dates of determination of reportability were April 9, 1979 and April 19, 1979.

Any additional information regarding the above topic will be sub-mitted as a follow-up reporc.

Should you require further information, please contact this office.

8 Very truly yours,

b. h. h/ZSS- f C. M. Stallings Vice President-Power Supply and Production Operations c:c Mr. John G. Davis, Acting Director (3 copies)

Office of Inspection and Enforcement 1 /

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4 ATTACPED IS A PART 21 REPORT FRM I? f%IL UNIT - ROOM 359E/W m ... _ .

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fl . -~ PART 21 IDBRIFICATION f6.21'779-dv -o a s COPANY MVE DATE OF LETTER 9 / 7 7- ~

10CET NO. So-a r DATE DISTRIRHED [/7/7 9 ORIGINALREPORT SUPPLBEHARY Z DISTRIBlHION:

REACTOR (R)g FLEL CYCLE & SAEGUARDS(S) f%TERIALS(M)

NRP/ITJR (STB.LD) AD/FFBEI AD/SS-IE iRR/DR1 G0YD) NSS/FGS AD/RDI AD/ROI ( 2 ) REGIONS PEGIONS AD/RCI IE FILES NRR/DDR ( STELLO)

REGIONS PDR NMSS/SG SS-881 IE FIES (2) ' LPDR PDR CENTPAL FIES CBERAL FIES-SS-395 LPDR CBHPAL FIES (CHPHO CBITFAL FIES(CHR0O TEPA 016)

PDR IE FIES O LPDR CB4TPAL FIES 016 B03DB;41G,MPA TEPA CENTPAL FIES (CHR3N) 333 DSC'IG, 'PA CERPAL FIES - SS-395 303 DBrilG, IPA ACTION:

PRELIMINARY ENTION CF THE ATTACHED REP 0itT INDICATES LEAD RESPONSIBILITY FOR FOLLO,f-UP AS SH0hN BELOW:

JE LLPa K'SS OTHER[

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