05000366/LER-1979-050-03, /03L-0 on 790609:while Performing HPCI Valve Operability Test,Pump Suction Valve Failed to Open within Specified Time.Caused by Loose Connection in Shunt Field Circuit.Connection Tightened & Motor Released

/03L-0 on 790609:while Performing HPCI Valve Operability Test,Pump Suction Valve Failed to Open within Specified Time.Caused by Loose Connection in Shunt Field Circuit.Connection Tightened & Motor Released

ML19224C419
Person / Time
Site:	Hatch
Issue date:	06/21/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19224C414	List: 05000366/LER-1979-050, Forwards LER 79-050/03L-0 05000366/LER-1979-050-03, /03L-0 on 790609:while Performing HPCI Valve Operability Test,Pump Suction Valve Failed to Open within Specified Time.Caused by Loose Connection in Shunt Field Circuit.Connection Tightened & Motor Released ML19224C412
References
LER-79-050-03L, LER-79-50-3L, NUDOCS 7907020308
Download: ML19224C419 (1)

LER-1979-050, /03L-0 on 790609:while Performing HPCI Valve Operability Test,Pump Suction Valve Failed to Open within Specified Time.Caused by Loose Connection in Shunt Field Circuit.Connection Tightened & Motor Released

Event date:
Report date:
3661979050R03 - NRC Website

text

LICENSEE EVENT REPORT a

cornno,i otock:

l l

l l

l@

(PLE ASE PRIN T OH TYPE ALL HE CUlRED INF ORMATION)

S lG l A gj l lH 2 @[0 l0 l0 0

0l 0l 0{0 l 0 l 0l 0 @l 4 l 1 l 1 l 1 l 1 l@l [g

1 H 9 Lett r.ME (QUE 14 las L IC L *. L L A v '.* d t H h

2b LeCL bl Ivrt JJ bl L A T b6 cr J.J l L j@l 01 5l 01 0 l 0l 3l 61 6 !@l0 16 l0 19 l7 l9 l@L016 I 21 117 I 91@

S 8

OU 63 Coca E Y %'/ i R od GJ LVENT DATE 14 73 REPCHT DAT E 60 EvtNT otscairTioN ANo rnoa Aste ccustoucNcts @

Q [ With the reactor in the startuo and hot standby node, while performing HNP-2-3302 I

g ; (HPCI Valve Operability), the 2E41-F041 valve (pump suction frcm suppression chamber) I gl failed to open in the specified time of 60 seconds.

Technica' Specifica tion 3.0.4 l

g was complied with in that the facility remained in Condition II and did not enter j

g l Condition I.

Public health and safety were not affected by this incident.

_j C1 1

9I I

8 9 60 S YS T E '.'

CAUSE

CAUSE CO?/ P.

VALVE CCCE COCE SudCCOE CO'/PCP.ENT rCDE SUECCCE SUBOOCE [C lF l@ l El@ l A l@ [V l A iL VlElXl@ lEl@ U @

9 6

9 10 11 12 13 IS IJ IJ SE QUE *4TI AL OCCURRENCE REFCRT REVISION

_E V E *ai v E 1. R F<EPOR T NO.

CODE TYPE NO.

@,"LE P A O l 7l 9j

[--J l0l5l0l l/

l 0 l 3_j l Ll l-l [J

y.pf

_ 21

.2 23 24 2G 27 23

?)

30 31 32 ACTICN FUTU:E EsrECT 5H u 7 0 07.4 ATT I O - '/ E N T AP A0 4 p n t'/ E CT '8 CO*/ PC P. E N T TA/EN ACTIO.

C N P'; * < T

• E T H O._

HOURS 5.6Vi?TED rga.t 3c[,

gypti[q pf A*.UF A CTU7 E A l A lglJEZlg lC g [Zj@

l0l0l0jul j ii l@

l N l@

lA @

P l3 l0 l5 l@

33 h

Ob 31 43 di 42 43 44 47 CAUSE DESCmrTlON A?.D CCRRECTIVE ACTICNS h g l The 2E41-F0'l valve failed due to a loose connection in the shunt field circuit, g [ which caused the motor winding to overheat and burn.

The loose connection, located I

g i at the internal side of the motor contrcl conter derninal block, was tightened and I

g l the motor replaced.

The valve was then tested and found satisfactory.

I t

4 1

i E 9 80 STp S

• PO /cE R OTHER ST ATUS btS O RY DISCOVEHY DESCRIPTICN g

B l Bl@

0l0l1 @[

N/A l

l Bl@l Surveillance Test l

[

8 9 10 12 11 44 45 46 60 ACTIVITY CCN T E '4 T

(

cRE ASED Or n!LE ASE A". FOUNT OF ACTIVITY LCCATION OF PELE ASC

~

g zi @ Lzj @

N/A l

l N/A l

[

8 9 l ')

11 44 45 80 PERSO%EL iXPWUPE!

En TV E C5 5CRia TION l30 8 9 11 12 13 ea PE H5 C".*.E L IN JL u i ES m.-

nacn.P n O..

] [010 Ol@l N/A l

o 8 9 11 12 EO I

g p

W4 ' '"t,A.? """" @

7 907 0 '2 0

>O o S

alIzlg[

N/A l

i 8 3 lu E0 I

FLT l ' C" Y NnC USE ONLY f-ir,.!;E n

[.I ',C P I P T W'.

7 Uij 8 L N/A I

I I I I I IJJ_L1 1 ' i !,

i a 2 m

o e)

- S

[

R. T. Nix, Supt. cf m intenance 912-367-7781 NAuc or enErancH PHONE.

(

- n