05000346/LER-1980-005-03, /03L-0:on 800110,Tech Spec Late Date Passed W/O Performance of Boric Acid Flowpath Heat Tracing Weekly Test. Caused by Known Deficiency in Design of Sys Resulting in Inability to Maintain Min Temp Necessary During Startup

/03L-0:on 800110,Tech Spec Late Date Passed W/O Performance of Boric Acid Flowpath Heat Tracing Weekly Test. Caused by Known Deficiency in Design of Sys Resulting in Inability to Maintain Min Temp Necessary During Startup

ML19260D996
Person / Time
Site:	Davis Besse
Issue date:	02/06/1980
From:	Caba E TOLEDO EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19260D992	List: 05000346/LER-1980-005, Forwards LER 80-005/03L-0 05000346/LER-1980-005-03, /03L-0:on 800110,Tech Spec Late Date Passed W/O Performance of Boric Acid Flowpath Heat Tracing Weekly Test. Caused by Known Deficiency in Design of Sys Resulting in Inability to Maintain Min Temp Necessary During Startup
References
LER-80-005-03L, LER-80-5-3L, NUDOCS 8002120718
Download: ML19260D996 (1)

LER-1980-005, /03L-0:on 800110,Tech Spec Late Date Passed W/O Performance of Boric Acid Flowpath Heat Tracing Weekly Test. Caused by Known Deficiency in Design of Sys Resulting in Inability to Maintain Min Temp Necessary During Startup

Event date:
Report date:
3461980005R03 - NRC Website

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EVE 97 DATE 74 73 REPORT DATE 80 EVENT DESCRIPTION AP.3 PROB ASLE CONSEOUENCES h 1o j 2 ] l On January 10, 1980 a t 1700 hours0.0197 days <br />0.472 hours <br />0.00281 weeks <br />6.4685e-4 months <br /> the Technical Specification late date passed with-I pqTl [ out being able to successfully perform the Boric Acid Flowpath Heat Tracing Weekly I

l o l a l l Surveillance Test ST 5011.01, Section 6.1.

The concentrated boric acid storage systeml I was declared inoperable and the unit entered the action statement of Te.chnical Speci- !

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loIc1 l fication 3.1.2.2.a.

There was no danger to the health and safety of the public or to I o

7 i station personnel. The flowpath from the Borated Water Storage Tank (BWST) was i

l'o !a J l operable.

(NP-33-80-05)~

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CAUSE

CAUSE COMP.

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o lThe cause of this occurrence is a known deficiency in t'ne design of this system which I li. ! i l makes it dif ficult to maintain the heat trace minimum temperature durinn demin water I

[TJT] l addition which is necessary durina a startup.

Facility Change Request 78-508 will I

[,,3ll add a heat exchanger to preheat the water before it reaches the heat traced portion of i 4i i the pipe.

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NPCAER oTHER STA1US D CO RY DISCOVERY OESCRIPTION STA l1 l5 l W@ l 1l 0 l 0 l@l NA l

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DESCRIPTION

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PERSONNE INJ RtES NU'?S E R DESCR'P flON i7171 1 01 01 O!@l NA l

7 8 9 11 12 80 LOSS OF OR D AVAGE TO FACILITY TYPE DE SCRep rtON a,o t zj e Na 1951 U8

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Erdal Caba 419-259-5000, Ext. 236 o DVR 80-007 NAME OF PREPARER

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