05000368/LER-1981-013-03, /03L-0:on 810304,reactor Coolant Sys Cold Leg Temp Indicator 2TI-4715A Found Reading 10 F High.Caused by Bad Servo Motor.Servo Motor Replaced & Indicator Calibr. Scheduled Replacement of Sigma Indicator

/03L-0:on 810304,reactor Coolant Sys Cold Leg Temp Indicator 2TI-4715A Found Reading 10 F High.Caused by Bad Servo Motor.Servo Motor Replaced & Indicator Calibr. Scheduled Replacement of Sigma Indicator

ML19343C519
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/19/1981
From:	Morton K ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19343C514	List: 05000368/LER-1981-013, Forwards LER 81-013/03L-0
References
LER-81-013-03L, LER-81-13-3L, NUDOCS 8103240425
Download: ML19343C519 (1)

LER-1981-013, /03L-0:on 810304,reactor Coolant Sys Cold Leg Temp Indicator 2TI-4715A Found Reading 10 F High.Caused by Bad Servo Motor.Servo Motor Replaced & Indicator Calibr. Scheduled Replacement of Sigma Indicator

Event date:
Report date:
3681981013R03 - NRC Website

text

N

)

1 ssRC FORh43ss U. S. NUCLE AR REGULATORY COMMtsSION f7 778 t.lCENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK: l l l l l l lh (PLE ASE PRINT OR TvPE ALL REQUIRED INFOPMATION) l AlR l Al N] O l 2 lgls0l0 l -l0 l0 l 0l 0l 0 l-l 0 l0 [g l1 l 1l1 } 1lgl l lg o i 9

LICENSEE Coot 84 i

LICENSE,evM8ER 25 26 LtckNSE IV,& JO 67 CAT bg 7

8 CON *T 0 l 3 0 l4 l8 l 11@l 013 Il 19 l 8 l1 l@

.",',o% [L_J@l0 l5 p 10 1013 l 618 l@l 1

o i F

S 60 61 DocnET hugegn M

69 EwENT DATE ra 15 HE ORTDATE to EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES h r'6Tf1 IDurino Mode 1 coeration. while oerformino monthly remote shutdown i

1 instrumentation surveillance, Reactor Coolant System cold leg temperaturei 2

lindicator 211-4715A was discovered to be reading 100. F high. This I

o.

linstrument is a sigma indicator located on the remote shutdown panel i

o s os 12C80.

Similar to l_ER 50-368/80-083. This occurrence is recortable oer I

@ ITech Soec 6.9.1.9.b.

I o e i I

'So's"

'ScN sNcNa EUu.

sE'cEe cou,o=t=v m I Cl B 18 LE.J@ LEJ G LI_LNl 51 T IR I U l@ LI_J@ l z_1 @

o e

~

, ~1 vI..

I'#"o'Wi[

"YN*c'

!Ti'

"'1T"

@,,u,,... I8I11

[-J 10 1113 I (d

I 01 3 i LL_J L-J LO_J ajg'

_2n 22 22 24 26 27 29 29 20 21 32 1 n ON

,L T

MET

• • 0Ums 22 sue T

,Om vei t

wase F A Tunta la_J@LfJ@ LZJ@

LIJO I Ol of 010 I L.NJ@

L.2N_J@ L.2A_j@ l SI11815 l@

n 2<

2s x

v CAUSE DESCRIPTION AND CORRECrlVE ACTIONS 27 IThe temperature indicator 2TI-4715A contained a bad servo motor. The i

i o t i li1 Isorvn mntnr was renlaced and the indicator was calibrated.

Reclacement of g CD ithis sigma indicator is scheduled to be done during the upcoming refueling 2 toutage.

i t

i.

of rasutus @ 5'scNefv' oiscovin, oncen,no @

's t'A'Es' s,owna LEJ@ l 018101@l N/A I LBJ@l Monthly Surveillance i

i s u

u a

a as

.o

• J,u,,,,,o o,ar,,,,

A.ovor o, ACmir, @ l tocA,,o.,s.,,,uas,@

r C

. u aeuu.

s LZ_]@ LZ_J@l NA l

NA l

i s

,-.o.~.~'a n os,' iso.sc..,rio @

A

• a

..s vv,.

Io 10i Ol@LZ_J@l NA l

i >

' '..so ~d' uu'.fies ea l@ocsc..r.o=@

vuo...

101 010 l

NA l

i a ii n

3 L s oF OR DAMAGt 8 AC3 L871 LZJ@l NA i

' o 8,u.J'@*"$$"C.,,,, @ -

NaC usE ONty dl NA 1 lllll3lg;;;;j

=

==

~

501/968-2519 o,

Ken Morton-NAME OF PREPARER 8103240425 E