ML17317B031

LER 79-011/03L-0 on 790223:auxiliary Feedwater Discharge Valve Would Not Close from Control Room.Caused by Loose Connection in Hot Shutdown Panel.Connection Tightened & Correct Valve Operation Verified

ML17317B031
Person / Time
Site:	Cook
Issue date:	03/20/1979
From:	Beilman T INDIANA MICHIGAN POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17317B029	List: ML17317B028 ML17317B030 ML17317B031 ML17317B032 ML17317B033
References
LER-79-011-03L, LER-79-11-3L, NUDOCS 7903290033
Download: ML17317B031 (2)

Text

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

LICENSEE fVENT REPORT CONTROL BLOCK: Q1 {PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I 6

~oi 7 8 9 M I D C LICENSEE. CODE C I Qo0 14 15 0 0 0 0 0 0 LICENSE NUMBER 0 0 0 0Qo 25 26 4 1 1 LICENSE TYPE 1 1 30 ps~ps 57 CAT 58 CON'T

~o1 ~LQB O 5 O O O 3 1 5 Q7 0 2 2 3 7 9 Qs O 3 2 O 7 09 7 8 60 61 DOCKET NUMBER 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 WHILE PERFORMING A SURVEILLANCE TEST ON AUXILIARY FEEDWATER DISCHARGE VALVE FMO-212 IT WAS DISCOVERED THAT THE VALVE WOULD NOT CLOSE FROM THE CONTROL ROOM.

ALTHOUGH THE VALVE FAILED IN THE CONSERVATIVE POSITION THE REQUIREMENTS OF

~os T.S. 4.7.1.2.a.4 IIERE NOT FULFILLED UNTIL REPAIRS IIERE COMPLETED. THE TIME

~o6 LIMIT IMPOSED BY T.S 3 7 1 2 WAS OBSERVED WITH REPAIRS COMPLETED WITHIN ELEVEN HOURS OF DISCOVERY. A SIMILAR OCCURRENCE WAS REPORTED UNDER 315/78-018.

~OS 80 7 8 9 SYSTEM CAUSE CAUSE

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11 Q ~>>ao 12 13 V A L V 0 P 18 Ql4 ~l(

19 Qis ~k 20 Qs SEQUENTIAL OCCURRENCE REPORT REVISION 21 22 23 24 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT,NPRDP PRIME COMP. COMPONENT

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33 34 Qo ~poo 35

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36 Q>>

37

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40 PJ 41 Q>> PJQ4 42 PJ Qs 43 44 47 Qs CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 o THE CAUSE WAS DETERMINED TO BE A LOOSE CONNECTION IN THE HOT SHUTDOWN PANEL THE CONNECTION WAS TIGHTENED AND CORRECT VALVE OPERATION WAS VERIFIED. THE LOOSE CONNECTIONS WERE ATTRIBUTED TO CONSTRUCTION INSTALLATION, AND FOLLOWING THIS EVENT, ALL TERMINAL BOARD CONNECTIONS IN THE UNIT ONE AND TWO HOT SHUTDOWN PANELS lOERE VERIFIED TO BE TIGHT.

7 8 9 80 FACILITY METHOD OF Qs ~IO 0 P>>

7 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT RELFASED OF RFf EASE AMOUlggF ACTIVITYQ36 LOCATION OF RELEASE Q CZ 8 LJQ>>

9 Lips 10 45 NA 80 O"Q'"'"'"""

7 PERSONNEL EXPOSURES 7 8 9 11 12 13 80 PERSONNEL INJURIES

"-Q EZ Loools 7 8 9 11 12 NA 80 LOSS OF OR DAMAGE TO FACILITY 43 7 8 9 10 80 KZ <Q44 ISQIED PUBLICITY DESCRIPTION ~ NRC USE ONI.Y ss O

8 9 10 68 69 80 o 0

NAME OF PREPARER P eilman 616-.465.,5gO]

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