ML20216K132

PNO-78-189:on 781103,while Reactor Was in Cold Shutdown condition,1100 Gallons of Reactor Coolant Water Was Sprayed Into Containment Through Css.Reactor Shutdown Since 781127 for SG Insp & Maint Activities

ML20216K132
Person / Time
Site:	Saint Lucie
Issue date:	11/06/1978
From:	Klingler G, Nolan F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
References
PNO-78-189, NUDOCS 9804220103
Download: ML20216K132 (1)

Text

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PD 9 ad M PRELIMINARY NOT!FICAT10N GP November 6, 1978 l

) PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-78-189 '

This preliminary notification constitutes EARLY notice of an event of POSSIBLE safety or public interest sionificance. The information l i

presented is as initially received without verification or evaluntion l and is basically all that is known by IE staff on this date.

FACILITY: Florida Power and Light Company l St. Lucie, Unit No. 1 Docket No. 50-335 Hutchinson Island Florida ,

SUBJECT:

INADVERTANT ACTUATION OF CONTAI'NMENT SPRAY .

l On November 3 at 2:50 p.m., while the reactor was in a cold shutdown l condition,1,100 gallons of reactor coolant water was sprayed into the containment through the containment spray system (CS).

The reactor has been shut down since November 27 for steam generator inspection and other maintenance activities. During return of the CS system to service following valve maintenance, air was applied to the system air operated valves prior to electrical operation of the value solenoid air controller. The valves functioned as designed and opened. ings Thirty workers in containment received some low level contamination and grg were decontaminated by taking showers.  :

s.  :

k Licensee estimates the gaseous release to be 0.001 percent of Technical Specification limits. The radioactive liquid was drained to the waste system.

The licensee is considering a news release. A news release is not i planned by the NRC. The State of Florida has been informed. l Region II (Atlanta) received notification of this occurrence by telephone from the plant manager at 4:30 p.m., on November 3. This information is current as of 8:45 p.m. on November 6.

Contact:

GKlingler, IE x28019 FNolan, IE x28019 Distribution: TransmittedHSt_L/.TO Chairman Hendrie CommissEi~r Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Commissioner Gilinsky (For Distribution)

Transmitted: MNBB T.IO P. B1dg&6 It L. V. Gossick, EDO H. R. Dinton, NRR J. G. Davis,t/.'/

Region TL V S. H. Hanauer, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. M it.tson , iGR N. M. Haller, MPA V. Stello, Nr'R (MAIL.)

-s R. G. Ryan, OSP ,,, , , d 3 R. 0. G. Abston, 0IA l '

H. K. Shapar, ELD SSS. Beyp Bldg 1 ljRR R. Minogue, SD g ;

! C. V. V,r u , fiMSS

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PRELu:!dARY INT!;%ATION 9804220103 781106 PDR I&E bf O PNG-78-189 PDR