05000325/LER-1980-091-03, /03L-0:on 801211,rod Block Monitor B Observed Indicating Downscale.Caused by Failed Power Supply Due to Defective Power Supply Regulator & Zener Diode in Power Supply Regulator Circuit.Regulator & Diode Replaced

/03L-0:on 801211,rod Block Monitor B Observed Indicating Downscale.Caused by Failed Power Supply Due to Defective Power Supply Regulator & Zener Diode in Power Supply Regulator Circuit.Regulator & Diode Replaced

ML20002D422
Person / Time
Site:	Brunswick
Issue date:	01/08/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20002D420	List: 05000325/LER-1980-091, Forwards LER 80-091/03L-0 05000325/LER-1980-091-03, /03L-0:on 801211,rod Block Monitor B Observed Indicating Downscale.Caused by Failed Power Supply Due to Defective Power Supply Regulator & Zener Diode in Power Supply Regulator Circuit.Regulator & Diode Replaced
References
LER-80-091-03L-01, LER-80-91-3L-1, NUDOCS 8101200629
Download: ML20002D422 (1)

LER-1980-091, /03L-0:on 801211,rod Block Monitor B Observed Indicating Downscale.Caused by Failed Power Supply Due to Defective Power Supply Regulator & Zener Diode in Power Supply Regulator Circuit.Regulator & Diode Replaced

Event date:
Report date:
3251980091R03 - NRC Website

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8 to El DOCKET NUMBER 64 69 EVENT DATE 74 7%

REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 lDuring normal surveillance Rod Block Monitor B was observed indicating downscale.

l 0 3 IThe monitor was then declared inoperable as recuired by technical specifications.

I O c l Thin event did not affect the health or safety of the cubife.

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NAME OF PREPAHER 8101200k#1