05000315/LER-1979-057-03, /03L-0:on 791029,while Shifting to RHR,motor- Operated Containment Isolation Valve Failed to Open Completely & Would Not Close.Caused by Corrosion of Valve Operator Torque Switch Due to Condensation in Conduit

/03L-0:on 791029,while Shifting to RHR,motor- Operated Containment Isolation Valve Failed to Open Completely & Would Not Close.Caused by Corrosion of Valve Operator Torque Switch Due to Condensation in Conduit

ML17318A464
Person / Time
Site:	Cook
Issue date:	11/28/1979
From:	Wizner D INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A463	List: 05000315/LER-1979-057, Forwards LER 79-057/03L-0 05000315/LER-1979-057-03, /03L-0:on 791029,while Shifting to RHR,motor- Operated Containment Isolation Valve Failed to Open Completely & Would Not Close.Caused by Corrosion of Valve Operator Torque Switch Due to Condensation in Conduit
References
LER-79-057-03L, LER-79-57-3L, NUDOCS 7912040371
Download: ML17318A464 (2)

LER-1979-057, /03L-0:on 791029,while Shifting to RHR,motor- Operated Containment Isolation Valve Failed to Open Completely & Would Not Close.Caused by Corrosion of Valve Operator Torque Switch Due to Condensation in Conduit

Event date:
Report date:
3151979057R03 - NRC Website

text

ACCESSION NBRi Fkckt: So<<hiS AQTH SHAME NIRAERr O',G ~

HKGII ~ NAME..

REGUI.ATORY ORMATION DISTRIBUTION SY H (BIOS) 7912040371 DOC ~ DATEr 79/11/28 NOTARIZED e No Donald C;

Cook Nuclear Power= Plant'r"'Onit'"1r"Indiana.

8,

'utHoR aFFILIATIoN In8fana L Rtchfgen Power Co; RECIPIENT AFFILIATION Beg[on 3r Chicago'ff{ce of the Director DOCKET lI5000315 SUBJECT!

LER 79 057/03L; 0:on 791029rwh) ler shifting to; RHRrmotor operated"conte.inment"isolation valve'a)led to open completely.

S would not c)ose,Caused "by corrosion af valve operator toi que switch due to condensatfan ln candu)t, OISTRIBUTION COOEj A002S COPIES RECEIVED;LTR ENCL g.

SIZE;

,. I+,I TI:

nc

ent, epor ts NDTES r.(,>>,

Q c-+E +

L L ~ &T'l~>> PJ

~\\

A ACTION:

RECIPIENT COPIES Ib CODE/NAME L'h'lH ENCL o5 ec>>'ECIPIENT IO CODE/NAHEl COPIES LYDIA EACL INTERNAL' EXTERNAL:

09 IlLE 14

'Q/EDO 16 FEB i 8 Pt.ANT S YS BR 20 AD PLAtIIT SYS 23-ENGR SR 25 PHR SYS BR 27 OPERA O'IC.:BR 29 aOR 8v8"8R'ANAOER,8,

'HI>>

R STREET 03 LPDR 29 ACRS 1

1 2ii ii iii i

i i

i 1

1 16 16 02 NRC PDR 1i HPA i5 NOVAK/DANIEL i7 ao"FoR ENGH i9 Iac SVS eg.

22 HEAC. 8A'Ft. BR=

24 KREGER 26 AO/SITE, ANAl'8 ACOENT-AtILPS E JORDAN/IE.

'TS"GROUP"E,EAOR 04 NSIC 1

1

- 3 3

ii iii i

i i,

ii i

i 5J 5/

TOTAL. NUHBER OF COPIES REQUlRED!

LTTR 48-ENCL'>>g

rI ci l

'I M

II M

W M

1 1

M M

M I

M

~

M M

I M

g M

I

~

C q