ML19261B605

LER 79-002/03L-0 on 790126:diesel Cooling Water Pump 22 Failed to Start During Surveillance Test.Caused by Stuck Contacts in Licon Micro-Switch 11-104

ML19261B605
Person / Time
Site:	Prairie Island
Issue date:	02/23/1979
From:	Hunstad A NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19261B598	List: ML19261B597 ML19261B605
References
LER-79-002-03L-01, LER-79-2-3L-1, NUDOCS 7902280263
Download: ML19261B605 (1)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK:

1 l l l l l 6

lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

' l o l 18 l 9l M ! LICENS N l P3 lCODE I l N l114 l@l15 0 l 0 l - 0 0 0 l0 l 0 -l0 l 0 l@l LICENSE NUMBER 25 4 1L 3 CENSE 2t3 l1 l1TYPE1l@l JO l

$7 CAT $8 l@

7 CON'T o 1 3$n$ @l0l5 0 l0 l0 l 2l8 2

gl0l1l2 6 l7 l9 Ql0 l2 [2 l3 [ 7 l 809 g 74 75 8 60 61 ts8 69 EVENT D ATE REPORT DATE 7 DOCK ET NUMBER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h

[o l2l l During surveillance test, No. 22 Diesel Cooling Water Pump failed to start. l g 3 Redundant equipment was operable. Not repetitive. Tech Spec 3.3.D.2.a l g , applies. Pump was again made operable in less than 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br />. No effect on g 3 public health and safety. l l

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l l0 l 7 l l 0 H SYSTEM CAUSE CAUSE COVP VALVE CODE CODE SUBCODE COYPONENT CODE SUBCODE SUBCODE lol9l lWl^l@ lElg ] g lI NlSlTlRlUlg 10 12 13 18 19 g gg 20 7 R 9 11 4 SEOGEN TI AL OCCURRENCE REPORT RE

• f SIGN HE PORT NO. CODE TYPE NO r R RO _ EVENT YE AR

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_ 21 22 23 24 26 21 28 29 31 ACTION FUTURE EFFECT $N U T DOWN ATT ACHUENT N P R D-4 PRIVE COYP. COYPON E N T TAKEN ACTION ON PLANT VETHOD HOURS SUBVITTED FORMbUB. SUFFLIER MANUEACTURER lAl@]7.]@

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35 Jo l 0 l 0l Ol 0l 31 40 dh 41 Wh 42 lA 43

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47 C AUSE DESCRIPTION AND CORRECTIVE ACTIONS lt lol Stuck contacts in a LICON Micro-Switch #11-104 (cmgga switch). Switch was replaced.

No further action is necessary since the present preventive maintenance program on this device is considered adequate, l

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1 4l l 7 8 9 80 F ACILITY YE THOD OF STATUS  % POWER OTHE R S T A TUS DISC OV E HY DISCOVERY DESCRIPTION NA g gl Surveillance Test l,l3l y @ l1l0l0l@l l l Aa,v,1 Y CCbT t OC AT,0 4 0, nf u AsE @

mu AsED OF nEu Au NA Av0uNTO,uTiviTv @ ll NA li l6 a] 9W @ l toZl@l 7 13 44 45 g PF HSONNE L F M PO%UHE5 NUYHER TYPE In stn PTi(;N NA I i i 101010 l@l z l@ln W

, H 9 ,, u PERSONNE L INJUHIES NU'.88 F R DESCRtPYlON NA I 7

i s 4 2 101010 l@lu ,, EO LOSS OF OH DAVAGE TO F ACILITv TYPE DE SCniP TION NA li lol LU@l 1 H *) to BG ISSUED PUB L ICI T Y DE SCRIP T !ON 7902280963 Noc ust = v I2 I"I bbU^

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A. A. Hunstad gggyg 612-388-4767 {

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