05000368/LER-1979-085-03, /03L-0:on 790925,during Mode 2 Operation,Refueling Water Tank Boron Concentration Was 1,705 Ppmb.Caused by Calculation Based on Boron Concentration Taken Prior to Sufficient Mixing.Operating Procedures Revised

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/03L-0:on 790925,during Mode 2 Operation,Refueling Water Tank Boron Concentration Was 1,705 Ppmb.Caused by Calculation Based on Boron Concentration Taken Prior to Sufficient Mixing.Operating Procedures Revised
ML19254E305
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 10/25/1979
From: Pendergraft R
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19254E288 List:
References
LER-79-085-03L, LER-79-85-3L, NUDOCS 7910310434
Download: ML19254E305 (1)
v • d • e


LER-1979-085, /03L-0:on 790925,during Mode 2 Operation,Refueling Water Tank Boron Concentration Was 1,705 Ppmb.Caused by Calculation Based on Boron Concentration Taken Prior to Sufficient Mixing.Operating Procedures Revised
Event date:
Report date:
3681979085R03 - NRC Website
v • d • e

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DOCA tT NUMBE R fah 69 (VENT D ATE e4 REPDA f D ATE M0 EVENT DESCRIPTION AND FROB ABLE CONSECUENCES O'o FETT1 IDuring Mode 2 operation, the Rerueling Water Tank boron concentration o

a Iwas found to be 1705 pomb.

Both Boric Acid Makeup Tanks were above the ibTr1 iminimum required levels and boron concentrations for Mode 2 operation r5Tr1 iper T.S. Figure 3.1-1.

RWT boron concentration was increased to 1749 Ippmb. within one hour meeting the requirements of Action Statement e

s c, IT.S. 3.1.2.8b.

There have been no similar occurrences.

Reportable iper T.S. 6.9.1.9b.

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