ML20084S222

Telecopy Ao:On 750809,standby Liquid Control Pump 1A Produced Flow Rate Below Tech Spec Limit.Caused by Premature Lifting of Relief Valve RV-1-1105A.Relief Valve Reset. Further Info to Be Provided in AO 50-254/75-20

ML20084S222
Person / Time
Site:	Quad Cities
Issue date:	08/11/1975
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NJK-75-407, NUDOCS 8306160248
Download: ML20084S222 (1)

Text

~

l Comm: Ith Ediz:n -

Quad Citt lear Power Station i Post Office 216 '

'. * * 'l Corcova,Ilknois 61242 Telephone 309/654 2241 NJK-75-407 nL{l,.,,

.,t sy '., eid Telecopy: Region lil, Attention: Mr. C. Felerabend _, g U 81975 3 -1 y ;

A gust II, 1975 j N s .,3 gif/

.]

! ,Y W ., ' a

- 9:', /

J. Keppler, Regional Di rector I Of fice of Inspection and Enforcement Region ill U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 l 1

Reference:

Quad-Cities Nuclear Power Station, Unit i Docket No. 50-254, DPR-29 Appendix A Sections 1.0. A.2, 3.4. A, 6.6.8.1.a

Dear Mr. Keppler:

The purpose of this letter is to p'rovide 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.

i At 9:00 P.M. on August 9,1975, during routine monthly surveillance testing, i-1 A Standby Liquid Control pump produced a flow rate of only 20 GPM against a system head of 1275 psig due to premature lifting of relief valve RV-1-1105A.

The' minimum flow rate required by Technical Specification 4.4.A.I is 39 spm at 1275 psig.

The relief valve was reset and the pump retested satisfactorily at a flow of 47.6 gpm against a head of 1275 psig on August 10, 1975 This occurrence was discussed by telephone with Mr. Hayas of your office on August 10, 1975 Further information will be provided by Abnormal Occurrence Report A0 50-254/75-20 which will be submitted withing 10 days of the date of this occurrence. .

Very truly yours, COMMONWEALTH EDISON COMPANY quad-CITIES NUCLEAR POWER STATION ff.A N. J. Kallvianakis f$

Station Superintendent .

NJK/SRH/rhb cc:. Office of Nuclear Reactor Regulation l G. A Abrell a ----- m w y ., .

~

8306160248 750011

PDR ADOCK 05000254 i S PDR

-- ..