ML17252B534

LER 80-049/03L-0 for Dresden, Unit 2 Re at Completion of Secondary Containment Leak Rate Test the Reactor Building Ventilation Isolation Valve 2A-5742 Would Not Open

ML17252B534
Person / Time
Site:	Dresden
Issue date:	01/23/1981
From:	Scott D Commonwealth Edison Co
To:	James Keppler NRC/RGN-III
References
DJS LTR 81-72 LER 80-049/03L-0
Download: ML17252B534 (3)

Text

-*

,,,~--~*~~

ti- '*'

j B Commonwealt...,ison Dresden Nuclear Po.Station .

R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 January 23, 1981 DJS LTR #81-72 James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable Occurrence Report #80~49/031-0, Docket #050-237 is beinky submitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), conditions leading to operation in a degraded~mode permitted by a limiting.condition for operation or plant shutdown required by a limiting condition for operation.

DJJ/uJU D. J~cott Station Superintendent DFesden Nuclear Power Station DJS/lg Enclosure cc: Director 6£ Inspection & Enforcement Director of Management Information & Program Control U.S. NRC, Document Mgt. Branch File/NRC ;Joo ?J.

S

~

ti;  ::;**,

~r ..l:.J

~!!.-*1

It

-\

:;::1_.

,~."

co.,*-"-* 'l?:z: ' ¢;~

criS~:: c=., .

' c:::::-

i-_.-.,,~_f)

":ill* I

011 at._>: ti';'.:

~~*~~0<..(

Chj::c-:

C:l *;;:.-:  :.:::i;:) i,:i)

~~*

L* ..._l,':'*."1 C'.l

• ~-~~f I*  !":.::

q),

~:

(5.

80 ..

NRC. USE ONLY I' ,. 11* I rr I ,. I

. 68.- 69>. .

a1.5:.;..942"'"2920--.s4a.

t 'f:~¥Z.J~.-.-~.-;* .*T :*Y;l*~~t!~~;)_!~~~N\,_Ri~o.RJ**** *. _* .

c

.:.~ :t *:~/c:"eo.m~.onw~~h!~~som*: *  : :;*:/;:;?::, ;;~,t::ia:4rf.1;..u~~*~v~~:~~~:f (. -...*.,* .. :.;*

• * *" * * *' *.. OCCURRED: *- ... " , ... --:--:-,.

• ._,Failiit~(of i~~~tar;~B~J:!ci+/-~~-*;_.i~6:~~t1~J';vl.i~:'~*u~s;~;~:*t~* ap~;~t~;*.,  :::* .*,* r 12129

• /ao~ . - 07~~~E .x

• . SYSJ'EMrAFFECTED! 5750.. Pt.ANT.*CONDITIONS; . * * ** TESTING** -

/ React~r>BuiidingtV¢ntilat.i<ln: ~*\.~6~E;>. ~~~~:/.:iJ ::*~* * * *.ros*2,. *** *** *~::* * ~;1.'~

• ... * :D .CRIPTI N:Of'*EVENl * .. " ... ._,.*-*"*** . _-... ..: .";'* ....., ._ .,_. _ * :* *: . . * . .......... **," ... <. * .. :*,;: :,c"*.. ,;.;,:.

.

• Upon:.* completion* of' DTS' *1600-22:*. "Secondary:; Containment .Leak: Rate: Test*,: "'the: reactor. build'i~g .. '" >.* '\ c t**:~~t;~:t~;;;;~;:;;::~};~::~~~~iii:~f~~~iii~~:;;~~:~t~t~~;!;"~~f;)'f~~~i~:;:;i~:~ii:it*

. :.y:** , :>.: : .DESCRIPTION. OF* CAUSE* *.~.*>;-"  :) ;,*C:<;*~~>>;..~::~\:::,;):',:;}:~}.f;::.,~i).*:>-;,;:j-:.-~-.::,>*_;.:~;::\:,; ~ :-,"'::. _: ,.;** -: ~.: -~: . ..**: _.. '; ,.'.-:" ,~ .. : ~;'. ;* :. :<*.,' ,;~*:._. *'. <:;;,' 1 A~:~~-"

. .... suspect excess" leakage' in< directi'onar control valve"> wh.kh' preyented- opepipg air signal 'and*' '."":'f,;';'

.*kept crosi~s:_:a-ii- . on.-the. ~ vaiveiL-' *.. *>-/.::/::. .. . ,; *'- _, * :* - *--* .*.. . ... , -*.. . <>;,)_;;:*}~

OTHER: APPLICABLE. INFORMA-TIO~- *

- Failed in" safe (c'losed) conc;lition *.

'*-.\.

. . .~*. --.... .

• . . - * ' . . -.. :- .- -.-.:.,, * * .. , ** * - -'* * .....,. . . SAFETY-, ..:** , *

-~****. * - iYPE: oF:: oEv.:i:An.oN'.~.. EVENi* oF PaTEN.TtiAc.> T.Eo+:*.SPEc.*

• NON""REPORTABLE"

• ANNUAL****. **. RELATEo* ~- -_:-:

Ij 1*8-

: ::: g, ;~:;:: :*.;*or*.;.'.::~~~:; 1-c~tE£:i ** * ***'o *

• • ,*REPORTABLE:: OCCURRENCE. *: *; PU.BL IC INTEREST:>. *: V.I 01:.ATJON.'.- j. OCCURRENCE: . REPORT! NG'< *wR: __I SSUEQ:.:. _ _.

7;* ~: ,Y!S. ~: >* -~

l *:.~c~;f.~~~~=~~~ y;~:~*NJ.*.'.:;'*".'.~:._.-_EM*_.:;".*_:.,;_:.;_~*: *~~M~~ ::f~?ENOTI

!~ A.>tXA *ao:.!-4g/03L_~o" *.

-.':.*.-.*_J.. .;:

,_**\ :-.<,

(*.: *

• FI CAT.I ON

~'oZ:.1t '. TIM:- *l

~ ~*-HOUR:*. NR~: NO:r_I nC..r1 ON,* * '. ;;: ".> . .':\. '. ~*...l\lMPl>OFF:~: NOT I. Fr CAT ION* . DATE Tl ME . '

'.j .*~ _*;

Cj. ..

o* :TPH/:~ . ' ****. 'c'.'.. *':* . " ., ... ,'.... *.

P<F::~~:-A;.; P~line~ ' ' - . *- .  :*;__ Y/6/Bl ... i2~39* - ;1

-:J - . . * ... REGION ... U.I> .~-** * . . .. Tl-TLE': DATE,. TIML

• T ... o:r~wf REGION. I 1 1.: ! . DOL:, ,. __ CATE:' ~-;ME . ". ' . . .. ** *ri*~~E *** .. .-"* DATE. ---- TIME.

~

• '.~

.i

.'*j . RESPONSIBLE COMPANY OFFICER* INFORMED OF IOCFR21

• 1 CONDITIONS. ANQ THErR' REPORT ro* NRC Tl TLE

• DATE. -""t""I"M...f-"*

J .. ~ REVI EYi:*ANO: COMPLETED John- W. Wujdga * . . .IL/31 l80 -

') I

• OPERATING ENGINEER DATE.

• -.*".*~._* "&<.*.

ACCEPTANCE sy*_ STATION. R.EVI Ew.*.

AS** REOU I RED . *'*

d>_

• ,;*1*

1 .... **. .. . I DATE. _ _,.-+.o.++.-;;;."---

1J~t. /f /

IQAfE-.

-~ ,- H-~51711 1 10*77"  !'ORM-: '5*52:"~1 "_ , . , .-, , * .

• _ * -- . _ . ,'.!

~_.~..

-.OJ*~:,~~,*\"'"~""*-?- """'. ~*~<<:+.f!'l'.fW*', -7r;,.*'.!'."'~*i' ,:~~ ~!""' """':P'**~::~~~~- ~,.,..

(;;r ,!"."'1!:.< 'l~ ' - '!iJ'.'!f-.,JFl , ~ .J..3l'l(.~~'*"-;r,~~<\'i"i""}'~~J- ~*-':\'$.~ff\~M"*l~

..