ML20151X653

PNO-77-120:on 770702,unit Shutdown Due to RCP Seal Failure. Approx 40,000 Gallons of RCS Water Was Leaked Over Period of 8 H Into Containment Via Failed Seal While Unit Being Placed in Cold Shutdown Condition

ML20151X653
Person / Time
Site:	Indian Point
Issue date:	07/05/1977
From:	Klingler G, Nolan F, Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
To:
References
PNO-77-120, NUDOCS 9809170196
Download: ML20151X653 (1)

Text

I WOh July 5,1977 fff .

PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO This preliminary notification constitbtes EARLY notice of an event of POSSIBLE safety or public interest sien'.ficance.

presented is as initially The information ,

_and is basically all that isreceived without verification or evaluation l

known by IE staff on this date, __

l t

Facility: Consolidated Edison Company of New York, Inc.

• Indian Point Unit 2  !

• Buchanan, New York )

(DN 50-247)

Subject:

FAILURE SHUTDOWN OF REACTOR COOLANT PUMP SEAL CAUSES UNPLAN The unit was shutdown from approximately 1 percent power at 3:15 a.m.,

July 2, 1977, due to a reactor coolant pump seal failure.

40,000 gallons of reactor' coolant system water was leaked over a periodApproxima ,,

of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> placed into in the conta'inment cold via the failed seal while the unit was being shutdown condition. The water was pumped out and decontamination work inside containment will commence today.

The shutdown and seal is expected to last at least three weeks for

• ump replacement. p examination

(

There were no rel, eases of radioactive material to the environment or overexposure of personnel as a result of this event.

i Media interest is expected because of close attention given to operating I

.g - problems at Indian Point Station facilities. The State of New York has

• been. informed. A press re, lease is being considered by the licensee.

./

\

NRC, Region I, (Philadelphia) received notification of this occurrence  ;

by telephone from 'a~ Facility Technical Engineer at 11:00 a.m., July 2, 1977.

Information is current as of 8:00 a.m., July 5, 1977.

Contact:

GK11ngler, IE x27451 FNolan, IE x27451 JSniezek', IE x27451 Distribution: Transmitted H St // / N '

C. C. Kammerer, CA G. F. Murphy, JCAE Commissioner Kennedy S. J. Chilk, SECY Commiss,ioner Gilinsky H. H. Whitesider SCNR ,

H. R. Myers, HCEE l

Transmitted: MNBB/N 'PBldg//') SS Bldg //.' J' b L. V. Gossick, EDO E. G. Case, NRR S. H. Hanauer, EDO C. V. Smith, NMSS I J. A. Harris, PA ,

W. G. Mcdonald,'MIPC Luge (MAIL)

R. G. Ryan, OSP .

E. Volgenau, IE T. J. McTiernan, OIA Region C'[,

H. K. Shapar, ELD' PRELIMINARY NOTIFICATION 9909170196 770705 PDR I&iE

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PNO-77-120 PDR .-

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