ML20042A411

LER 82-007/01P-0:on 820309,error Revealed in Calculations of Sodium Pentaborate Concentration in SLC Tank.Caused by Specific Gravity of Solution Not Being Factored Into Weight Percent Calculation in Accordance W/Tech Specs

ML20042A411
Person / Time
Site:	Vermont Yankee
Issue date:	03/09/1982
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20042A405	List: ML20042A404 ML20042A411
References
LER-82-007-01P, LER-82-7-1P, NUDOCS 8203230398
Download: ML20042A411 (1)

Text

N9C FOHM 366 U. S. NUCLE AR REGUL AT'OR bOMMEN 17 72) ,

LICENSEE EVENT REPORT LER 82-7/IP cONTROt BLOCo l I I I I I l@ (PLE ASE COINT OR TYPE ALL CEQUIRED INFORMATION) f0TT1 I v i r l v i y i s I t l@lo lo I- 10 lo lo lo lo l- b b l@l 264 l 1LICENSt 2S l 1 l1l1l@l TYPE 40 l

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PEPORT DATE 80

' 8 60 61 OT KET NUVBER EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h

[ o 12 l l A review of the Sampling and Treatment of the SLC System procedure revonind an error l l' o l a l l in the calculation of soditmi pentaborate concentration in the SLC tank. The specific l

[7 l 41 l gravity of the solution was not factored into the weight percent calculation and, there-l jo;3j l fore, could potentially result in a nonconservative error of 52 I l

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12 13 18 19 20 J 8 9 to 11 SEOUENTI AL OCCURRENCE RisORT REVISION

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JJ J4 36 3/__ 42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS lijol[The procedure will be immediately corrected. The sodium pentaborate concentration in I

,;i; gthe SLC tank was increased to well above the Tech. Spec. Limit as a result of LER 82-3/ I

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11 131 l I

12 141 l 80 7 8 9 S . POWER OTHER ST ATUS IS O RY DISCOVERY DESCRIPTION Procedural Review l Ii l5 l bh l 1l 0 l 0 l@l NA l lB l@l AhTIVITY CO TENT RELEASED OF RELE ASE AVOUNT OF ACTIVITY LOCATION OF RELEASE NA l l NA l l i l 68 ]9W (a3) l10Z l@l 7 11 44 45 90 PERSONNEL EXPOSURES

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,E RSoN~E L iN;u'R 45 2

NuveER DESCRIPTION @ l NA l'iT'l8I9o I o Io l@l 1 11 12 80 LOSS OF OR DAVAGE TO FACILITY Q TYPE DE SCRIP TION v NA l l i l 9a )9 [Z 8203230398 l@l 820309 Bo 7

PDR ADOCK 05000271 NRC USE ONLY y 'sLp44)I i H 9 S

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