05000321/LER-1980-048-03, /03L-0:on 800509,while Performing ASME Inservice Pump Operability Test on Plant Svc Water Pump 1B,discovered That Max Attainable Flow Was 3600 Gpm.Caused by Faulty Pressure Indicator on Pump Discharge

/03L-0:on 800509,while Performing ASME Inservice Pump Operability Test on Plant Svc Water Pump 1B,discovered That Max Attainable Flow Was 3600 Gpm.Caused by Faulty Pressure Indicator on Pump Discharge

ML19312E587
Person / Time
Site:	Hatch
Issue date:	05/29/1980
From:	GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19312E584	List: 05000321/LER-1980-048, Forwards LER 80-048/03L-0 05000321/LER-1980-048-03, /03L-0:on 800509,while Performing ASME Inservice Pump Operability Test on Plant Svc Water Pump 1B,discovered That Max Attainable Flow Was 3600 Gpm.Caused by Faulty Pressure Indicator on Pump Discharge
References
LER-80-048-03L-01, LER-80-48-3L-1, NUDOCS 8006050349
Download: ML19312E587 (2)

LER-1980-048, /03L-0:on 800509,while Performing ASME Inservice Pump Operability Test on Plant Svc Water Pump 1B,discovered That Max Attainable Flow Was 3600 Gpm.Caused by Faulty Pressure Indicator on Pump Discharge

Event date:
Report date:
3211980048R03 - NRC Website

text

U. S. NUCLI: AR HL GULATOHY COMMIS$lotJ

.fOllM 3GG LICENSEE EVENT REPORT H

a

. Hol BLOC K: ((l l

l _ \\

l (PLE ASE PiHNT 04 TYPE ALL REQUIRED INF ORMnTIOf!)

I b

Q l c I A i E I I IN 11 JG! 010 l-1010 LO 1010 l-1010 l@l al 11 11 il 11@

i Ig

.1 2t, LICt hSL lyre JJ bl Ci i 1,8 LICL NSL Nu'JblH it 3 LH.tf 4SEE Lo(jt 14 lb

[,' lc" l L j@[0 ] 5 ] 0 l 0 l0131211 l@[ 01 5l Ol 91 8] Ol@l 01 51219181 ol@

N'T 80 t> 3 LVLNT DAIE I4 15 HErOHfDATE do t,J Lt

(,0GP;LT NUrniE H 8

EvErn otscHIPTION AND PROH ADLE. CONSEGUENCES h I

E L During steady state power operation while performinq the A.S.f1.E. Inservice I

Pump Operability Test on Plant Service Water Pumo IB, it was found that gl yl the maximum attainable flow was 3600 gpm.

The pump was declared inoper-1 l

ative and a limiting condition for operation was established per Tech Specs

[

1ITil I Ti 1 1 3.5.J.2b.

There were no effects upon public health and safety.

This is l

l a repetitive event as last reported on Reportable Occurrence Raport

[]T} l I

l llo. 50-321/1980-026.

iTiil I C O?.* P.

VALVE 8 9 SYSTEM

CAUSE

CAUSE COCE CODE SUBCODE COMPONENT CODE SUdCODE SUCCODE lW l A l@ lE l@ lE l@ l Il N] S j Tl Rl Ul@ lI l@ (Z i@

rm 18 19 2d 8

9 10 11 12 IJ REVlalON OCCURRENCE REPORT SEQUEN TI At.

CODE T)PE ag o.

_.LVEf tT YE AR REPORT NO.

O g[R/90

[ 81 0]

l-l l 0l 418l W

l0l3J [U

l-l l0[

LE

,(n; 21 22 23 24 a t>

71 28 29 JJ 31 U

TEKEt A il N O FLA T T

HOURS S

I

(

?

S.

S P9ttE YAN F TUHER [fLj@lLl@

!zl@

l zl@

10101 O! 0l l Yl@

lNl@

l A j@

LAlSl0lIj@

33 34 J3 3>>

3 '.

40 41 42 43 44 47 CAUSE DESCRit TION AND CORRECTIVE ACTIONS h An investigation revealed that the cause of the low flow indication vias l

jo1 l The pump flow I

l due to a faulty pressure indicator on the pump discharge.

g[

had been throttled to produce the correct head pressure en the faulty J

g; The gauge was repaired and the pump was re-tested with no problems.

j l,,3 j l gauge.

l U

ila l I 8 9 CISCOVERY DESCHiP13ON bl5C El Y l

SIA s N POM H OTHER ST ATUS NA l

lRl@lSurveillance i l 6 ) [1j@ l 0l Ol 9J@l A TIVITY CO' I F.NT LOCATION OF HEt E ASE AMOUNT OF ACTIV TY I

Rt LE ASED OF nLt [ AM l iici LIJ O LIJ@l NA I

I NA d

44 W4

)

8 9 10 11 l'E f tSONNEL f xrpsuHts 1

NUUM M I T f' E DL SCHIPilON O_l 0 l 0 h H 7. l @ l_

Nil 1 i l

No.'

n e, wori,04@

I Pt it.ONNI L (*J JU LS NA pici101010i@i 4-d

'/

8 9 11 1

l t 055 Of 011 O AM At.L 10 f ACillIV lire DiLCf0PilON u

""c""'"""

i

,.,.mT,"SL.,, o.,@

aooe050 FM

,t u,

1,,LLLLLLLLLLLLI ;

NS

r

NARRATIVE

REPORT Georgia Power Comapny Plant E. I. Hatch Baxley, Georgia 31513 Reportable Occurrence Report No. 50-321/1980-048.

During steady state power operation while performing the A.S.M.E. Inservice Pump Operability Test on Plant Service Water Pump 1B, it was found that the maximum attainable flw was 3600 gpm.

The pump was declared inoper-6tive and a limiting condition for operation was established per Tech Specs 3.5.J.2b.

There were no effects upon public health and safety.

This is a repetitive event as last reported on Reportable Occurrence Report No. 50-321/1980-026.

An investigation revealed that the cause of the low flow indication was due to a faulty pressure indicator on the pump discharge.

The pump flow had been throttled to produce the correct head pressure on the faulty gauge. The gauge was repaired and the pump was re-tested with no problems.

During the course of this i,ivestigation the flowmeter calibration was checi:ed and found acceptable.

Also since the flow was unstable during testing the pump was fully disassembled and inspected for wear and foreign objects.

This inspection revealed that the pump was in like new condition.

The pump was re-assembled and re-tested.

During the re-test the defective gauge was found.

The in-ability of Plant Service Water Pumps to pacs the A.S.M.W. Inservice Inspection Testing is repetitive as last reported on LER 50-321/1930-026.

The primary cause of the past failures has been normal pump near.

A program is under way to extend the normal service life of the pumps.

This failure was due tc a defective pressure gauge on the pump discharge which is located locally.

It is only used for proving pump operability and inservice testing.

Although pressure gauges fail occasionally, there is no reason to believe this failure is generic.

l r

e 1