ML19260D368

LER 80-007/03L-0:on 800111,during Mode 3 Reactor Heating Containment Average Temp Decreased to 85 F,Less than Tech Specs.Caused by Insufficient Procedural Precautions. Removed Chiller from Svc.Monitored Temp

ML19260D368
Person / Time
Site:	North Anna
Issue date:	02/08/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19260D364	List: ML19260D363 ML19260D368 ML19260D369
References
LER-80-007-03L, LER-80-7-3L, NUDOCS 8002080595
Download: ML19260D368 (2)

Text

NRC F ORM 36ti U. S. NUCLE AR REGULATORY COMMISSION (777)

• LICENSEE EVENT REPORT CON rROL ut.OCK (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l 1 l l l lh l0 l1l [

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/ 6 W b1 DOCKE T NU'/BiH M l'J EV hNT D ATE lb EV EN r DESCRIPTION AND PROB ARLE CONSEQUENCES h o 2 l During a reactor heatup ('f od e 1) the contai_n~ n* ,,' o r m t-,1*y ,i 4 I g , j to SS F whiCh is less than the 86 F linit set hv T.S. 1.6.1 5 N , ~, t e ! 1,t I g , l tempe ra ture was innediately restored within the linits nn ro co 4 - ~' L !! _ ctm ,

I g g statement. This event is reportable as per T.S. 6. 9 .1. ') . b . I o s I l

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I zl@ l01010101 W@ in l@ 17 @ Iv lo lo lo l@ 47 33 32 3n 4J 41 42 43 44 cAUSE DESCRIPTION AND CORRECTIVE ACTIONS h

, g lThe cause of the con tainme n t temperature decrease was innnsficione n-nc~L-,1

- I g,;,; ;tions. The Unit was returning from a refuelino outaar 'n w r nn t ,4 - .t t ,.;_ l

, , gshould have been nonitored nore frequently. Innedtate cor-ocef"o ,-*tn,c +^ n I

, , lto renove the chiller fron service and to reduce ciren t a r i- nr oi- u th --o- ' ,t I

, 4 [Further actions were to nonitor tennerature and contrni cbfil e,*nr  %-,+ - . l

, g pa ncain tne correct containment t erature. 80 F ACILITY */E THOD OF STATUS .'., OTHER STA TUS DISCOV E RY DISCOVERY DESCRIPTION 1 5 l C g l0 loERl3l@lN/A l lC l@l Opera tor n5 serv,r i n, l 7 g 9 IJ 12 t 'l 44 45 46 80 AC TIVI TY C O N T E *.T RELE ASED OF usts Asg A=.?OUNT OF ACTivl TY LOC ATION OF RELEASE x^ m li; Is 8l 9f' l @ Iz l@l 10 11 44 l I 45 80 PE AsON M L E v.,h 4 ES

. T Y P i- CE 5C AIPTION NA I; i i i l P P'34EAP 181 z @l 13 80 l

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P D,m.P 181 m I 7 8 3 11 12 80 L OS$ OF OH DAV AGE TO F ACILITY n ni iil@""E son.,o_ M 9 5

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