PNO-II-83-073, on 830912,CP&L Declared Alert in Accordance W/Plant Emergency plan,15 Minutes After All Annunciators Alarmed But Could Not Be Reset.Licensee Continued Plant Operation & Assigned Addl People to Increase Surveillance

PNO-II-83-073:on 830912,CP&L Declared Alert in Accordance W/Plant Emergency plan,15 Minutes After All Annunciators Alarmed But Could Not Be Reset.Licensee Continued Plant Operation & Assigned Addl People to Increase Surveillance

ML20198R426
Person / Time
Site:	Brunswick
Issue date:	09/12/1983
From:	Hardin A, Verrelli D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-II-83-073, PNO-II-83-73, NUDOCS 9711130273
Download: ML20198R426 (1)

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- September 12, 1983

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JARY N'ITTFTCATION OF EVENT OR UNU$UAL OCCURRENCE PNO-II-83-74 This preliminai/ notification constitutes EARLY notice of.cVents of POSSIBLE safety of 1 public interert significance. The Information is as initia11 received without verifi- )  ;

cation or evaluation, and is basically all that is known by t e Region !! staff on  ;  !

this date.  ! I I

FACILITY: Caro 11na power & Light Cwnpany Licensee Emergency Classification: l , ,

Brunswick Unit I Notification of Unusual Event

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i ry. 3 Docket No. 50-325 Southport, North Carolina -

1 x Alert

~~ 7 1te Area Emergency l J ency I'

~~~~Not General Applicab Emele {

_SUBJECit FAILURE OF ANNUNCIATOR SYSTEM REl.AYgi Carolina Power and Light (CPAL) declared an alert--in accordance with the plant .

emerg:ncy plan.-at 6:37 4.ni. (CDT) today.15 minutes after all annunciators alamed * <t I could not be reset. The reactor was at 92 percent power and plant conditions were-  !

verified as being stable.

i The lic';nsee cMtinued the plant in operatlon, assigned additional people to increase surveillance in the control room und plant secured access to the turbine and reactor i buildings, and stopped all testing or mainfenance activities which could affect plant  !

s The plant computer was unaffected, j weuaws. i atoms were manually reset in groups, and their capability was verified, although l tha dio fur. tion was not freediately restored. It was determined that the initial annunciator failure was caused by a failed relay, which is now being repieced. The j alert status was ended at 7:15 a.m.

Podia interest is exper.ted, The licensee plans to 1ssue a news release.,, TherNRC does l r>ot plan a news release. y l" o c.n .

The state of North Carolina has been inf onned. N ;i, m- l The licensee notified the NRC headquarters incident response center offbiis inTident al h07 a.m. today, gg a -

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Contact:

A. K. Hardin. RII 742 5509 0. M. Yerre111. RII 242-5526 p DISTRIBUTION:

v2 to C }'Myl H. Street .

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Com. Roberts MPA AE00 .i App 1(cab!e State  ;

Cozi Asselstine CLD ,

tom. Air Rights INP0 ,

1 SCCY SP NSAC . j O C/R Distribution: Chm, Cmrs ,  !

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