ML20052C140

LER 82-015/03L-0:on 820325,radiation Monitor R29B Instrumentation Channel Declared Inoperable When Displays on All Readout Consoles Were Inaccurate.Caused by Dirty Contacts & Faulty Link.Contacts Cleaned

ML20052C140
Person / Time
Site:	Farley
Issue date:	04/22/1982
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20052C134	List: ML20052C133 ML20052C135 ML20052C137 ML20052C139 ML20052C140
References
LER-82-015-03L, LER-82-15-3L, NUDOCS 8205040417
Download: ML20052C140 (1)

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DATE 1 8 so 61 DOCK ET NU9 ben M 61 EVENT OATE 75 EVENT DESCnlPTION AND PROBAOLE CONSEQUENCES h .

I O l 2 I l At 0100 on 3/25/82 during routine surveillance, Radiation Monitor R29B (Plant Vent l

[o13l l Stack Effluent Monitor) instrumentation channel was declared inoperable when displays l

[o l4 l l on all readout consoles were determined to be inaccurate. Tech. Spec. 3. 3. 3.1, in part ,l

[ols] l requires R29B instrumentation channel to be operable. Tech. Spec. 3.3.3.1 action l lo is l l statement requirements were met. Health / safety of the public was not affected. l l 0171 l l l 0 l8 l l 80 7 Q 9 SYST E M CAUSE CAUSE COMP VALVE CODE CODE SU8 CODE COMPONENT CODE SU8 CODE SU8CCDE 10191 7 8 l Ml cl@ le l@ l xl@. 13le It iE lC l0 lN lh l Z lh l Zl h 9 iO 11 12 18 19 20

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di l42Nl@ l43Al@ l44E l 0 l 7 l 047lQ CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i I o I I This event is attributable to dirty contacts and a faulty communication link between l l1 l1I l the computer and the detector. The' contacts were cleaned and following repair of the 1 l,l2l l communication link, the Radiation Monitor R29B instrumentation channel was declared l lij3l l operable at 1300 on 3/25/82. l li l41 I I i 8 1 ST S %POwFn OTHE R ST A TUS bl5C V RY DISCOVERY DESCRIPTION liI5l l El h l1 l 0 l0 l h l" NA l lBlhl Routine Surveillance 8

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g g to NAME OF PREPARED W. G. Hai rst on , III PHONE

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8205040417 820422 PDR ADOCK 05000348 __.

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