05000270/LER-1981-001-03, /03X-1:on 810120,discovered That Low Pressure Svc Water Was Not Flowing to HPI Pump 2A.Caused by Blockage Due to Crud Buildup.Portions of Carbon Steel Piping Will Be Replaced W/Stainless Steel

/03X-1:on 810120,discovered That Low Pressure Svc Water Was Not Flowing to HPI Pump 2A.Caused by Blockage Due to Crud Buildup.Portions of Carbon Steel Piping Will Be Replaced W/Stainless Steel

ML20009C122
Person / Time
Site:	Oconee
Issue date:	06/19/1981
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009C117	List: 05000270/LER-1981-001, Forwards LER 81-001/03X-1.Detailed Event Analysis Encl 05000270/LER-1981-001-03, /03X-1:on 810120,discovered That Low Pressure Svc Water Was Not Flowing to HPI Pump 2A.Caused by Blockage Due to Crud Buildup.Portions of Carbon Steel Piping Will Be Replaced W/Stainless Steel
References
LER-81-001-03X, LER-81-1-3X, NUDOCS 8107200303
Download: ML20009C122 (1)

LER-1981-001, /03X-1:on 810120,discovered That Low Pressure Svc Water Was Not Flowing to HPI Pump 2A.Caused by Blockage Due to Crud Buildup.Portions of Carbon Steel Piping Will Be Replaced W/Stainless Steel

Event date:
Report date:
2701981001R03 - NRC Website

text

toi2C FCRh4De4 U.S.NUCt1AR SIECut.AroRY COhthe4553CN (7 771 LICENSEE EVENT REPCRT EXHIBIT A CONinCL sLcCx: I I

I I l

I e@

l tetEAss pneNr Cn tyrt ALL aEcusato iNaCavariCNi i

la t il Lsi c I N l El El 2 !

0101-i 01 Ol01010 l -l010 !@4 11 l 11 11 11@l 1

l@

3 4 9 6CL%ste c;;g 1.

3 wCENSE Nwase&A

=

Lcu.54 DPt

.0 67 C T to con *r

• • ',3 l L@l 015101 010 l 21710 @l 01 112101811 @l O ! 611 l 9 I 8 l Il@

loa 11 s

cac.r e

a avan t ears i.

73 anecaroara eo l

FVENT CESCmFnCN ANQ PRCSASLS CONSECUENCES h m I On January 20, 1981, it was discovered that there was no flow of LPSW to the ;

io.2, I "2A" HPI pump.

At the time it was found that there was aopw in th( 2A" I

i o.. i Lbearing cooler, pumps "2B" and "2C" were available for use.

Therefore, the t

o..,i HPI system was not impaired. Also, the use of "2A" was quickly regained wheng ioislI flow was restored.

Thus, this incident was of no sienigicance with respect tg I

go,,,i safe operation and the health and safety of the public were not affected.

i o is t i "ccY

• $EE sEEEe sE E SUEE.

e.a casur::os Io!s!

IS I B l@ Lx,.j@ i z i@ iz iz i z i zi zi 2;@ i zi@ g @

7 8

9 to 33 12 13 18 19

2 SSCuestr144 QC L' A s t %CE atPCRT AEVtS2CM.

t EVEMrTRAR

• EPCAr MO.

CCCE Tvet

pec,

@,,ag,3etecI 8 l 11 l-l 10 lol 11 y

1 013 I I xi W

I11

._ n

=

2 a

=

=

a u

u

'ON ".WeJ cL'"5r

'T.w.n" un n= 'E.T.r!'G'

,c'."a;'..

"",15ir 15",'?c"CT.,

r I x igl2x ig l zrg (azj g l o ol0 il i g g i Nig l zi g

zi zi zizlg

.1 u

v CAu3' 0 ASC3erTICM ANQ CORMECnVE ACTICNS 77 [s,a i l Tne cause of the low flow has been determined to be blockage by " crud" buildu,p.

i ii, I When lack of flow was encountered, valve 2/TVC/p was bypassed, and flow was,

mI restored.

A modification vill be implemented to replace portions of the j

i,,3i l carbon steel piping with stainless steel.

I i 6. I I l

crusastanas h NM v' casc0vemv cescateTicas h sT fus secwen Ii ! s I L@ l 1101 0!@l NA l' l A [gl Pre-start Check l

s a,,,

gl,,,,,

is is

=

.a li4eI [.z._1 @ Lz._.t@ l 4 ouwrce.cnvrry @ l tecArica c,..i, 4. @

=staAseo on w ttAss NA l

NA l

' ' naso

'ei. expoivaes l

...c.,,v, u.

l Ii 47l l0 l 0 l0 j@lzl@l NA l

nnscu e'0*uSns eD lglassemierica@

li la l l07l l NA g

?

8 9 11 12 gg

'Os " "as'c"n'S*o*2 '"" @

g y@l NA l

v i.

etsut E3CN.PT1CM 12104lN,, @ (_

NA l

ll 1IiiI Illtl i.

8107200303 610619 L Jones (704) 37'2-8197 PDR ADOCK 05000270 PucN E:

S PDR