ML17194A296

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Confirmation of Action Ltr Re Diesel Generator Cooling Water Pump Operability.Unit 3 Diesel Generator Will Be Declared Operable Re Fulfilling Tech Spec Requirements.Operability Will Be Demonstrated by Normally Required Surveillances
ML17194A296
Person / Time
Site: Dresden  
Issue date: 11/25/1981
From: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Reed C
COMMONWEALTH EDISON CO.
References
NUDOCS 8112030448
Download: ML17194A296 (2)


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Docut No::* so Docket No. S0-237 Do~tet No. 50-249

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- C01110nwealtb Edison Company ATTN: -Mr: Cordell Reed Vice President -

Post Off ice Box 767 Chicago, IL 60690

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This ~~fers to.the tP.lepbone conversation between Hessrs. D. H. Danielson

.and R~ C. Knop,and-ttr._ D. Scott.and others of our-1*espective staffs on November 25, l981;'regarding diesel generator cooling water pwop oper:1bility

  • at the Dresden Station.

With regard to the utters discussed, we understand that you will declare Unit 3 diesel generator operable with respect to ful-filling technical specification operability requl.rements..

Operability of the. Unit 3.diesel _generator will be demonstrated by normally required surveillances and, additionally, by continuous operation of thl' Unit 3 diesel generator.cooling water pump._* Except Ju ring tests which nquire otherwise, you will continue_ to run the 2/3 di?sel generator cooling w*ler pump. - Also, all three diesel generator cooling "at~r pumps shall be

-. vented approximately.hourly.

If the Unit 3 diesel generator cooling water pump should trip for any reason{Unlt 3 shall be placed in Cold Shutdown

'vitbin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following discovery, unless the trip resulted frrm normal aanual action or from an event that can be positively demonstrated to be unrelated to the events of October 23, 1981 and Novembel 19, 1981.

These

-~ con.ditions for operation of Unit 3 will remain in efft>ct until you providf' this office~ in writing, either a description of circumstances that, ""i th

  • high d~gree of credibility, accoun_ts for the observed behavior of the Unit 2/3 and Unit 3 diesel generator coo_ling water pumps during the event of October 23, 1981,- and the observed behavior of lt:e Unit 3 diesel generator

' cooling water pump during the event of November 19, 1981, or you have pro-vided alte_rnate assurances that the probability of a similar ~v_Pnl 'occurring bas been signifi~antly r*educed *and this matter is concurre<t in by this offic-e.

-ATTACHMENT 2 CONt'IRHATION m* ACTION LETTf.H r....... :;... ~~.~-;,*..,,:;L\\,*~~-,

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CONF J RMA Tl ON OF ACT JON LET fER

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COfllnon'"'edlth Edison Company 2 -

'.This !etter s*upt>rsedt-s the Confirm,1tion (if.Anion Ll'\\t1*1* d:1:ed 1'0'-*,*1llL..-1.

  • 1981.. Pleasf; inform ~s immediatE>ly if you h<1V<' any q1wsti1;11~; ron((*rn;nc this lelter.

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Louis 0, DelGeorge, Director

~f Nuclear Licensi~g D. J. Scott, Statio~

SuperintendE>nt 0118/Documt-nt CGntrol Desk (RIDS)

Resident Inspector, RJJI Mary Jo Hurray, OfficP of Assistant Attorney General Si nee n** ~ ~,

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Regiou.tl

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