ML19290B744

LER 79-045/03L-0:on 791108,during Startup of Boric Acid Cleanup Sys,Deborating Demineralizer Was Filled W/Primary Grade Water.When Cut Into Svc Boron in Tank Diluted to Less than Tech Specs.Caused by Inadequate Startup Procedure

ML19290B744
Person / Time
Site:	Beaver Valley
Issue date:	12/07/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19290B742	List: ML19290B741 ML19290B744
References
LER-79-045-03L, LER-79-45-3L, NUDOCS 7912130634
Download: ML19290B744 (1)

Text

NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION (7;77)

• LICENSEE EVENT REPORT CONTROL 0 LOCK: l 1

l l l l l

!h 6

(PLEASF PRINT OR TYPE ALL REQUIRED INFORMATION) o i 8 9 IP I A Is tv is 1l@lol0l-l0lololol0l-lo10l@l4 l1LICLNSE 14 15 LICENSE NUMdEH 45 26 11 l1 (1 l@y_j TYPE Jo $7 CAT 54 g

7 LICENSEE CCOE CCN'T 7

0 4

S$RC60 l L !@l 0 l 5CCCKET 61 l 010 l 0 l 313141@l NUMB ER 64 69 11 1l 0 l 81 7l 9l@l1REPCRT E% ENT C ATE 14 75 l 210 D ATEl 7 I 7 l 9 l@

t!Q EVENT DESCRIPTION AND PRO 8 ABLE CONSECUENCES h o 2 lDuring the startup of the Boric Acid Cleanup System, the deborating demineralizer [

o i3 Iwas filled with primary grade water. When the de:aineralizer was cut into aervice, i o Ai lthe boron concentration in the inservice boric acid tank was diluted to less than l o s fthe recuired 7000 PPM. The standby boric acid tank was immediatelv placed in l o 6 lservice with the recuired boric acid concentration. I o 7 I l

3ed} l SYSTEM CAUSE CAUSE COVP. VALVE CCCE CCCE SU5CCCE COVPCNENT COCE SUSCCCE SUBCCCE O 9 l Rl Bl lDl l 3l f ' I 7 ! 7 l 7 l 7 l 2l@ l 2 !@18 19 2u 7 3 9 10 11 12 13 SECLENT:AL CCCUccENCE REPCRT REVistCN EVENT YE AR REPORT NO. CCCE TYPE NO.

LE 9 2C

@ aeroar 17 19 I l-l I o i si sl l/l 23 ri l 31 Itl Ju 31 lo j 02

_ 21 22 23 24 26 27 29 ACTION FUTUAE EFFECT SHUTCCWN AT* AC HY E N T NPRO4 PRIVE COMP. CCVPONENT TAKEN ACTION CN Pt. ANT METHOD HOURS u SL B MITT EO FCRM 5LB. OUPPU ER MANUFACTLRER l33Gl@lJ4Z [@ lZl@

35 lZl@

06 l0l01Ol0l 31 40 l Nl@

43 l42Nl@ l43Z l@ lZl9l9l9l@

44 47 CAUSE DESCRIPTICN AND CCRRECTIVE ACTICNS @

i ;o lThe incident resulted f rom failure of the cleanuo s~ tem startuo procedure to I t i  ! caution the coeratar with recard to dilution of the horic acid. A nrecaurinn vil' I i g n i I be added to the procedure to assure dilution is taken into account when cuttinc in l i i3 lthe system. I i 4 I 1

7 3 3 80 STA  % POWER QTHER STATUS IS O RY DISCOVERY DESCRIPTICN t is l E l@ l0 l 3 l 8 l@l N/A l l A l@l Operator observation l A TlVITY CC TENT

• ELEASED CF AELEASE AMOUNT CF ACTIVfTY f.CC ATICN CF RELE ASE 7

1 l6 lZlhd 9 to 11 N/A 44 l l 45 N/A l 30 PERSONNEL EXPOSURES NUM8ER TYPE C ESCRIPTICN -

1 l7 l0l0l0l@l2l@l N/A l n

@b PERSONNE L 6NJURIES Q ,

U NUY8ER CESCalPTION .

i 21l0l0l0l@l N/A 6o a l} fl \ '[ l

" go 7 8 9 11 12 LOSS OF CR DAMAGE TO FACILITY

• TYPE CESCRIPTION i 9 lZl@l N/A go 7 8 9 to

" " C 'S "

70 363+ -

213 :S;UE[8]DESCRIPTICN IN N/A I IIIliIliIIII l]

7 8 3 10 68 69 30 5 e d ng 412-643-1258 NAME CF PREPARER PHONE: {