05000364/LER-1981-023-03, /03L-0:on 810604,boric Acid Storage Sys Declared Inoperable Due to Low Concentration in Boric Acid Tank 2A & Low Vol of Solution in Tank 2B.Caused by Prior Use of Sys for Boration & Personnel Error

/03L-0:on 810604,boric Acid Storage Sys Declared Inoperable Due to Low Concentration in Boric Acid Tank 2A & Low Vol of Solution in Tank 2B.Caused by Prior Use of Sys for Boration & Personnel Error

ML20009F628
Person / Time
Site:	Farley
Issue date:	07/07/1981
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F624	List: 05000364/LER-1981-022-03, /03L-0:on 810603,recombiner Oxygen Outlet Analyzer a Found Not Responding to Changes in Oxygen Concentration. Probably Caused by Serviceman Failure to Place Analyzer in Measure Mode Following Performance of Alignment Procedu 05000364/LER-1981-023-03, /03L-0:on 810604,boric Acid Storage Sys Declared Inoperable Due to Low Concentration in Boric Acid Tank 2A & Low Vol of Solution in Tank 2B.Caused by Prior Use of Sys for Boration & Personnel Error 05000364/LER-1981-025-03, /03L-0:on 810604,steam Jet Air Ejector Noble Gas Activity Monitor RE-15 Failed Low.Caused by Faulty Connection at Detector.Condition Corrected & Monitor Returned to Svc on 810615 ML20009F623
References
LER-81-023-03L-01, LER-81-23-3L-1, NUDOCS 8107310365
Download: ML20009F628 (2)

LER-1981-023, /03L-0:on 810604,boric Acid Storage Sys Declared Inoperable Due to Low Concentration in Boric Acid Tank 2A & Low Vol of Solution in Tank 2B.Caused by Prior Use of Sys for Boration & Personnel Error

Event date:
Report date:
3641981023R03 - NRC Website

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,, g ji LICENSEE EVENT REPORT CONTROL BLOCK: l l

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REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h I o 12.J l At 1140 on 6/4/81 and 0840 on 6/16/81. the Boric Acid Stornee System uns docinrod l

I o 13 I I inoperable due to the concentration in the 2h Boric Acid tank-beine low and the l

I o 14 l l volume of colution in the 2B Boric Acid tank beine low.

On 6/4/81. the concentration l j

loisl l in BAT-2A was 6917 ppm and the volume of solution in BAT 2A aas 10,920 gallons.

I lo l6 ] I On 6/16/81,. the concentration in BAT 2A was 6503 nom and the volur:e of solution in i

l o l 7 l 1 BAT 2B was 7980 callons.

Tech. Spec. 3.1.2.6, in part. reouires a minimum volume of l

4 IoI8l l 11,336 gallons of solution with a concenti ation b'etke"en 7000 otim and 7700 com.

Tech..I 80 7.,.._8 __9_ _ _ - _.

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SE QUE NTI A L OCCU R R ENCE REPORT REVISION LER og EVENT VE AR REPORT No.

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- jAUSE DESC91PTION AND CORRFCTIVE ACTIONS I1 1Oll'A_revie'w of chemistrv datn failed to indic4re eko c,mo fnr ebo crnconerneinn in rho I

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l i l i l 'l 2A BAT beine less than 7000 ppm (6917 ppm) on the first occurt9nce. Prior to discovervi 4

[ i ; 7 g lsf t'he -2A BAT condition, BAT 2A had been in use for Boration which resulted in a I

[,13l-lkolume of less than 11,336 callons (10,920 gallons). The second occurrence was due lto'[ckson'nelerror.

The concentration in-BAT 2A was close to the Tech. Spec. liEiit J [ii. l 7

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% POWER CTHER STATUS Dis Ov DISCOVERY DESCRIPTION l1 !5 l l E !h l0 l 4l 0lhl NA l

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. 44.' 4s 48 8o 12 RELEASED OF RELE ASE AMOUNT OF ACTivlTY LOCATION OF RELEASE w-

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8 9 11 12 80 LOSS OF OR DAMACE TO FACILITY TYPE D ESCRIP TION l i l o l l Z l@l NA l

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NAME OF PREMAHER W.

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Hairston, III C205) 899-5156 2

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LER 81-023/03L-0

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7-7-81 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (Continued) t Spec. 3.1.2.6 action statement requirements were met.

Health / safety of the public 1

was not affected.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (Continued)

I of 7000 ppm when the lines from the Recycle Evaporator to the BAT were flushed with pure water following a " bottoms" transfer. 'This is done in order to prevent solidi-fication of Boric Acid in the lines. This resulted however, in the concentration being reduced to less than 7000 ppm (6503 pr6). Again, prior to discovery of the 2A BAT condition, BAT 2B had been in use for Boration which resulted in a volume of-j j

less than 11,336 gallons (7980 gallons). Following restoration of the proper con-i' centration and volume, the Boric Acid Storage System was returned to service at 1945 j

i on 6-4-81 and 1920 on 6-16-81.

Procedure FNP-2-SOP-2.2, Recycle Evaporator Opera-1

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tion, will be changed to include additional guidance for flushing operations in order i

to preclude the BAT concentration from deviating from Tech. Spec. requirements.

' Dais event will be discussed with licensed personnel in future ' cense Retraining.

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