05000368/LER-1980-078-03, /03L-0:on 801014,HPSI Pump B (2P89B) Tripped on Overcurrent.Caused by Motor Bearing Misalignment on Inboard Motor Bearing.Corrective Maint Continued on Pump

/03L-0:on 801014,HPSI Pump B (2P89B) Tripped on Overcurrent.Caused by Motor Bearing Misalignment on Inboard Motor Bearing.Corrective Maint Continued on Pump

ML19340C489
Person / Time
Site:	Arkansas Nuclear
Issue date:	11/11/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19340C486	List:
References
LER-80-078-03L, LER-80-78-3L, NUDOCS 8011170487
Download: ML19340C489 (1)

LER-1980-078, /03L-0:on 801014,HPSI Pump B (2P89B) Tripped on Overcurrent.Caused by Motor Bearing Misalignment on Inboard Motor Bearing.Corrective Maint Continued on Pump

Event date:
Report date:
3681980078R03 - NRC Website

text

j]!

W,

4

~ NRC FORM 364 U $ NUCL E AR REGUL ATORY COMMIST.lON (7 77)

LICENSEE EVENT REPORT EXHIBIT A 4ONTFiOL B'LOCC l - ~l' l' l l l-lh f IPLE ASE PRWT OR TYPE ALL REQUIRED WFORMAf tom

'I 6

t o li l'l AIR I Al NI O F 21@15l 0101 -1010 l 0) Q 01-l 010 l@l 4Il i 11 1! 11@l l Ig 3

W b UCEN$EE cQDE

- 14 LICEN54 Neveset 29 26 te;E*.54 1tPE Ju b7 t A T b8 CC'.* ?

LtLU lC LL_)@!'Of 510101013 l 6 [8 l@l1 101114 l 810q)l 1I li 1l 1! 8 10 l @

2 8

6C CT-DOCstET NUMBER Mt 69 Evk'sT QATE 4

RE' ORT DATE

• J EVENT DESCRIPTION AND PROSASLE CONSECUENCEs h ia :211 Durino mnde 1 oceration while..yerformina the monthly surveillance test i 10 i s i 1 nn "R" MP9T Drnn (7PROR). the cump trioned on overcurrent.

The "C" HPSI I i

10 411oumo was aligned to supply the Loop II HPSI system.

2P89A and-2P89C l*

l o is11 were verified operable satisfying the requirements of Tech. Spec. 3.5.2. i f o a l l There have been no similar occurrences.

Reportable per Tech. Spec.

i

' icivi I6.9.1.9.b.

r 10 i + 1 1 I

'c!T

'cW!

.5.'s!E T

sT

.i s t FIO L,,Ej@ LBj @ ( P IU { M IP 'l X I X @ d.. L@ ]%@

w c.e Teoof o e I

u 2

a

- $EOL'E N TtAL QCCUN Hi *.'[

t t[ wS T NE '. GON O,aka!

I kid l L-l l 'dUI81 Ld 10Y3 I ITI L-J LJ 29

.2 23 24 25 27 28 29 2G 3L 1.

T N AC ON

. *L A T M 7 05 MAR 5 2

5s

'T ro e

s., e t ua a

lI 0'T['$ g LEJ@LXJ@

LZJO LZJ@

Oi 01 01 u l LilJ@

lYig g@

J l l

JJ 34 30 li 44 41 4J 43 44 4,

cAusE oEscRiPnON as: cOMEO UVE ACDONS h 1 T:T11 Investication revealed a motor bearing misalignment on the inboard motor i is silIbearina.

This misalignment caused high bearing loading and the over-i r TTI I current trio.

Corrective maintenance is beina continued on the pump in i I TTI I an effort to return the unit to operable status.

i 1

111I i.

e 2 55dgl During Survei fl. cecy.PYe'sh$7 STA 5

'LPOAEa cT*E45TATU$

M o i g.

LEj@'l 110101@l Power Ops.

I s

ance ng l

.c'riv, r, co'erEN, a

+

.o AvousT c, Ac1,v,T, @ l N4..,,m,,,,,,,,@

,,Ea AsEo o, afu Asf LLtJ L2J@ LZJ@l NA l

l

,,...!L,..,a.E u,m.1.c @

.E-r.

l ' I 'l 10101-Ol@LZj$1 NA

[

~'

' '-,wsowE't'.,u'4E3 so of:c..nw@

s,,..

I T ini nl nl@l NA l

7 ft 9 El 17 -

1. $ 08 C'4 UA8 L 10 S A.: t s.,

. 60 EE] LLJ@l NO l

B d

's tu FvuucsTV 84 i!U(3 455 Ld J LHJ@DE5LM'PisON NA

%C W WLY l

1 l!Iii1ii;iiii i

~'

'o NAME CF PF.Esaft!.g. Rex Pendergraft..

o a w

501-968-2519

,, 3.,

i

. 8011yyp q

a