05000315/LER-1979-007-03, /03L-0 on 790218:suction Valve of West Centrifugal Charging Pump Found Closed.Caused by Mistaken Closing Following Surveillance Testing.Incident Is Being Reviewed

/03L-0 on 790218:suction Valve of West Centrifugal Charging Pump Found Closed.Caused by Mistaken Closing Following Surveillance Testing.Incident Is Being Reviewed

ML17317B005
Person / Time
Site:	Cook
Issue date:	03/13/1979
From:	Chadwell H INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B004	List: 05000315/LER-1979-007-03, /03L-0 on 790218:suction Valve of West Centrifugal Charging Pump Found Closed.Caused by Mistaken Closing Following Surveillance Testing.Incident Is Being Reviewed 05000315/LER-1979-008-03, /03L-0 on 790207:containment Atmospheric Air Particulate & Gaseous Radiation Monitoring Sys Pump Was Continuously Tripping.Caused by Misalignment of Pump Bypass Flow Adjustments Due to Normal Pump Wear.Flow Rate Adjusted 05000315/LER-1979-009-03, /03L-0 on 790223:in Mode 1 Both Emergency Diesel Generators Were Inoperable on Separate Occasions.Caused by AB Diesel Generator Running in Parallel & Other Emergency Generator Out for Maint.Operating Procedures Revised ML17317B003
References
LER-79-007-03L-01, LER-79-7-3L-1, NUDOCS 7903190293
Download: ML17317B005 (3)

LER-1979-007, /03L-0 on 790218:suction Valve of West Centrifugal Charging Pump Found Closed.Caused by Mistaken Closing Following Surveillance Testing.Incident Is Being Reviewed

Event date:
Report date:
3151979007R03 - NRC Website

text

. S. NUCLEAR REGULATORY COMMISSION NRC FORM 366 I7-77) 7 8

CON'T [QD1]

7 8

LICENSEE EVENT REPORT CONTROL BLOCK:

Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORIVIATION)

I 6

M I DCC1Qs00000000000Qs41 1 11Qs~Qs 9

LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 R'RE ~LQB 0

5 0

0 0

3 1

5 Q7 0

2 1

8 7

9 QBO 3

QB 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING NORMAL OPERATION WHILE VALVING. OUT THE WEST CENTRI'FUGAL CHARGING PUMP FOR

~O3 MAINTENANCE, THE SUCTION VALVE WAS FOUND CLOSED CONTRARY TO T.S, 3.5,2, INVESTIGATION REVEALED THAT THE VALVE HAD BEEN MISTAKENLY CLOSED FOLLOWING

~os SURVEILLANCE TESTING.

THE WEST TRAIN WAS INOPERABLE FOR A.PERIOD OF 52.5 HOURS.

~os DURING THIS TIME THE EAST PUMP WAS CONTINUOUSLY OPERABLE.

~O7

~OS 7

8 80 7

8 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE F

Qii A

Qis

~BQis V

A L

V E

X Gs

~2Qis

~0 9

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LERiRO EVENT YEAR REPORT NO.

CODE TYPE NO.

Qii REPORT

~79

+

~gp p

Qw

~03

+C

Qp 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDQ PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

~XQis ~HQis

~ZQss

~ZQsi 0

0 0

11 Y Qn

~NQss

~ZQss 2

9 9

9 Qss 33 34 sI5 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION ANDCORRECTIVE ACTIONS Q27

~io UPON COMPLETION OF THE SURVEILLANCE TEST RUN OF THE UM AN AUXILIARY E UIPMENT OPERATOR WAS INSTRUCTED TO PLACE THE PUMP B

CK THE DISCHARGE VALVE AND CLOSED THE SUCTION VALVE WHICH IS THE CONDITION IN WHICH 3

HE FOUND THE PUMP BEFORE THE TEST RUN.

CONTINUED --

P GE 2 METHOD OF OTHER STATUS ~

DISCOVERY NA LAJQ31 44 45 46 45 NAME OF PREPARER H ~

M. ChadWel 1 4

7 8

9 FACILITY STATUS 99POWER 5

~E Qss ~pp Qss 7

8 9

10 12 ACTIVITY CONTENT RELEASED OF RElEASE AMOUNTOF ACTIVITY EZ ~Q LLIS 7

8 9

10 11 44 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

~00 0 Qsi ~ZQss NA 7

8 9

11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION Q41 [iisJ ~Op p

Qss NA 7

8 9

11 12 LOSS OF OR DAMAGETO FACILITYQ TYPE

DESCRIPTION

s ZQ42 NA 7

8 9

10 PUB llCITY ISSUED DESCRIPTION ".

KZ WNQ44 NA 8

9 10 DISCOVERY DESCRIPTION Q32 OPERAT R

BSERVATIO LOCATIONOF RELEASE Q 80 80 80 80 80 NRC USE ONLY 80 PHONE c

68 69 80 ~ ss 616 465-5901 X-316 c

0 n

CONTINUATION OF LER 879-007/03L-0 PAGE 2 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS THE SUCTION VALVE HAD BEEN CLOSED BY A DIFFERENT OPERATOR TO PERFORM ANOTHER TEST.

THE SECOND OPERATOR RETURNED THE PUMP TO THE CONDITION WHICH HE FOUND IT.

THE ERROR OCCURRED BECAUSE OF A LACK OF COORDINATION BETWEEN THE TWO AUXILIARYEQUIPMENT OPERATORS AND ALSO BECAUSE THE INSTRUCTIONS WERE NOT EXPLICIT ENOUGH.

A LETTER HAS BEEN SENT TO EACH SHIFT OPERATING ENGINEER REQUESTING A REVIEW OF THIS INCIDENT WITH HIS PERSONNEL.

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