ML20084S246

Telecopy Ao:On 750729,HPCI Sys Could Not Obtain Tech Spec Required Flow Rate.Cause Unknown.Eccs Testing Begun as Investigation.Further Info to Be Provided in AO 50-265/75-27

ML20084S246
Person / Time
Site:	Quad Cities
Issue date:	07/29/1975
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NJK-75-384, NUDOCS 8306160328
Download: ML20084S246 (1)

Text

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C:m salth Edis:n s QuadC Nucicar Power Station f*

Post Offi Box 210 Cordova,Ilhnoto 61242 kw Tc!cphone 309/654 2241 flJK-75-384 .

Telecopy: Region li t , Attention: Mr. C. Felerabend July 29, 1975  ;.

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J. Keppler, Regional Di rector < .' ./

Di rectorate of Regula+ary Operations ii>Wd ' ,

Region ill U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Reference:

Quad-Ci tics niucicar Power Station, Uni t 2 Docket flo. 50-265, DPR-30 Appendix A, Sections 1.0. A.2, 3 5.C. I , 6.6.B. l .a

Dear Mr. Keppler:

The purpose of this letter is to provide you with notification of an Abnormal Occurrence as required by Technical Specification 6.6.B.I.a within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the occurrence.

At 4:45 a.m. on July 29, 1975, during quarterly flow rate survalliance testing of the High Pressure Coolant injection (llPCl) system, a flow rate of 5000 GPH ot a system pressure of 1150 psig, as required by Technical Specification 4.5.C.1, could not be obtained. An indicated flow rate of 4860 GPH was obtained at*1225 psig. In order to obtain a flow rate of 5000 GPH, the pressure had to be reduced to just over 1000 psig.

Testing of the other emergency core cooling systems, as required by Technical Specification 4.5.C.2 was immediately begun as was an investigation of the cause of the occurrence. ,

This occurrence was discussed by telephone with Mr. Knop of your office on  ;;

July 29, 1975 Further information will be provided by Abnormal occurrence '

Report No. 50-265/75-27 which will be submitted within 10 days of the date of this occurrence.

Very truly yours, i COMMONWEALTil EDISON COMPANY '

QUAD-CITIES NUC EAR P0klER STATION

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'J. J. Kallvianakis ]

Station Superintendent B306160328 750729 NJK/SRH/1k DR ADOCK 0500026 cc: Director of Office of Nuclear Reactor Regulation J. S Abel ..