05000317/LER-1980-050-03, /03L-0:on 800901,while Performing Operation to Fill 12A Safety Injection (SI) Tank,Si Tank Exceeded High Level Limit.Cause of Rapid Rise in Tank Level Not Determined

/03L-0:on 800901,while Performing Operation to Fill 12A Safety Injection (SI) Tank,Si Tank Exceeded High Level Limit.Cause of Rapid Rise in Tank Level Not Determined

ML19338E926
Person / Time
Site:	Calvert Cliffs
Issue date:	10/01/1980
From:	Davis S, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19338E923	List: 05000317/LER-1980-050, Forwards LER 80-050/03L-0 05000317/LER-1980-050-03, /03L-0:on 800901,while Performing Operation to Fill 12A Safety Injection (SI) Tank,Si Tank Exceeded High Level Limit.Cause of Rapid Rise in Tank Level Not Determined
References
LER-80-050-03L, LER-80-50-3L, NUDOCS 8010060313
Download: ML19338E926 (2)

LER-1980-050, /03L-0:on 800901,while Performing Operation to Fill 12A Safety Injection (SI) Tank,Si Tank Exceeded High Level Limit.Cause of Rapid Rise in Tank Level Not Determined

Event date:
Report date:
3171980050R03 - NRC Website

text

p>

,'31 LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l lh (PLEASE PRINT 03 TYPE ALL REQUIRED INFO!MATION) 1 6

ITI l IM 10 lc lc it 11 l@l 0101 -l O ! 01010101 - l 01 O l@l 4 l 1 I l i l l 1 [@l I

l@

7 8 9 LICENSEE CODE 14 15 LICENSE NUM8ER 25 26 LICENSE TvPE JO

$ 7 CAT 58 CON'T lOIiI 3 UE lL l@l015 l 010 ! O l 3 l 1 l 7 l@l0 19 10 l 1 l 810 l@l 110 l 0 l 118 I O l@

I 8

60 61 DOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h IO # 2 I I At 2250 while perfomina a routine operation to fill 12A safety iniection I

[O t a i I (SI) tank, indicated tank level rapidly increased from aooroximately 199 I

lo t Ai i inches to 245 inches which resulted in the SI tank exceedino the hich level I

l o i s i i limit (T.S. 3.5.1.b). The operator reduced the SI tank level to less than i

1 ole 1 I 199 inches by 2345. The three redundant SI tanks remained operabie durino l

I o l 71 l the event. This is not a repetitive occurrence.

I I

I o I8 I I 80 7

8 9 su8C[oE sEEE

' E'E

• !OoE s0$$oE CouPONENTCocE C

10191 l II El@ l Xl@ l X l@ lX IX lX IX IX lX l@ lZ l@ l Zl@

7 8

9 10 11 12 13 18 19 20 SEQU ENTI AL OCCU R R E NCE REPORT REVISION LER RO EVENT YEAR R EPORT NO.

CODE TYPE N O.

@ syf,,7 l8 l0 l l_l l0l5l0l l/l l Cl 31 lLl l-l l0 l a

a

_ 21 2 ".

23 24 26 27 28 29 30 31 32 l X lgl34X [g [l35Zlg lZl@

[0 l0 l0 lU l lY ]@

[N l@

lii l@

lZ l9 l9 l9 l@

AC 0 PL NT E

40URS 58 I 80R '

8.

SLPPL1 MANUFAC LRER 33 36 31 40 41 42 43 de 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i i o i l Tha cau w nf tha annaront rwfa rica in +ank laval nac w van det rninec.

I i1 Ii I i !=ediate action included slowlv varvino tank level whila mnitoring indi-I ti:2i i cators to detemine that instrumentation was followinc level chances.

llo I

lii3i I bindino or erratic behavior was observed durina tank level chances nor I

I t i ig i narrow and uide ranae indication checks.

80 7

8 9 ST 4 POWER OTHER STATUS is O RY DISCOVERY DESCRtPTION I1 15 l l El@ l 0 l 9 l 5 l@l f1A l

l A l@l Ocerator Observation.

I A!TiviTY Co'0 TENT WOUNT OF ACTIVITY @ l LOCATION OF RELEASE @

RELEAsEo OP RELEASE ilA l

ilA I

liisl W @lZl@l PERSONNEL ExPCsSEs cEsCRiPTiON @

NuuSER rvPE l i l 7 6 1 01 01 Ol@lz l@l flA l

PE RsONNE L iN;u'Rif s oEsCRiPriON@

~uuSER I M l0101Ol@l flA l

80 7

8 9 11 12 Loss OF OR Dav4GE TO FAcittTV tWE

DESCRIPTION

li191lZl@l flA l

80 7

8 9 to i

NRC USE ONLY Pu8ticiTv 45 O

ISSUED

DESCRIPTION

8010060 7 i

i ;;iiiiiiiii; I2Ioffill@l

!!A 68 69 SO 's 7

8 3

'O (301) 269 4742

{

S.M. Davis /P. G. Rizzo PHONE.

NAME OF PREPARER

e.

LER ATTACHMENT LER HO.

~80-50/3L DOCKET NO.

50-317 EVENT DATE 9/1/80 REPORT DATE 10/1/80 ATTACHMENT CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (CONTIiiUED)

Indication has appeared normal since tne event occurred. ' Maintenance Request 0-80-3380 remains open for additional testing of transmitter 1-LT-331 during -the upcoming refueling outage.

0 9

6.