05000373/LER-1982-032

LER 82-032/03L-0:on 820517,upon Completion of Main Stack & Standby Gas Treatment Wide Range Radiation Gas Monitor Source Check,Low Range Monitor Failed to Return to Normal. Caused by Failure in Photomultiplier Tube

ML20054G788
Person / Time
Site:	LaSalle
Issue date:	06/11/1982
From:	Kay D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20054G784	List: 05000373/LER-1982-032, Forwards LER 82-032/03L-0.Detailed Event Analysis Encl
References
LER-82-032-03L, LER-82-32-3L, NUDOCS 8206220301
Download: ML20054G788 (1)

LER-2082-032,

Event date:
Report date:
3732082032R00 - NRC Website

text

.

~_' - +- n i i .;.-

nut ;. h i-- G 3r.g " -

./-

~ LJCENSEE EVENT RE*CRT F "2 n:v o .tAse mc en Tvrt A.L:. bcctiinc= iupch2;ya rch 12. 1H

cact stoco l I  ! l  ! I l@

23 o ;0 l010 !0 10 l0 l0 l0 l0 l0 lg 4 j 1wco.st0-,r,s 1

[0 ;0.ogg l y tlTiLlLl5iCl1 g,a

~ ' ' ~

i. wct=ste.w .ta a a u ; ; 3.

a i :amatc::a ,

0 1 0 i 31 7 1 3 'g 0 i 5# 1 i7 g8 g2:s @lol6IIeiiSiE g

.; v-a i .y!

1*C L

w gl0;5to1cocer s, u .ap 6. as a v tur cart  :. ar-on; art so WEx OESCNCON ANO 8 ACB ABLE CONSEC:.!E.NCES h Upon completion of the main stack and SBGT Wide Range ' Radiation Gas Monitor Source ,

Rad Chem was 3,

Check on 5/17/82, the low range monitor failed to return to normal. y i

informed to draw Grab Samples every 8 hrs and analyze for Noble G'as with 24 hrs. 9

,s, i At the time of this event, LaSalle Unit I was in cold shutdown and there was no ,

Safe operation of the plant was maintained at all times. ,

,y, t_.. irradiated fuel on site.

,7! t I

.se I CZP.85 VALyt Sv"'"tu CAGSE O e amm""*nur sueccog C :a COOS L.AUSEC.OO E DuPon&N* COC4

,33 [ ni B ig lE }@ lA l@ l l. l H l'S i T l R l.U lQ } E [g lmZ j g

, CCOl.18 8,NC1 SIEPCr4'"" frfvtsw SE QU EMTl AL

. e em- fEVENT"EA8 Jl

• EPC'r* NO.

l0f312i y CCC8 l0)3l T'F*E lL l [; lig

@ .7 (8 12 i = n = 22  :,

< . - = , e. ,. . ,

_:, =

... -- e mm c,s.,

2 2.

oves.

.sv- _T =to , -

aca w a.

m.. c=,

sur-v aa .

Co , ,,

w up rusiasi e .uar t ' '

l i r2x. = c e~

'la X Q )u g l g lu Zjg lw Z g 0 [0 [0 l l Ylg lNl l4 g y g g yg

. [2 .o .> n <a -

c.a :E :Esemmon Aso coper: tve AC tcNs @

l i t. . ; I -

This tube was replaced It_was determined that the photomultiplier tube had failed. 9

,.; on 5/29/82. .

I

i L I

.4 i i scr 8 5 -a umCO C' cme:3wTRY QC5.OPHPT,Qq ";

a c:u-* == seep g Ar.s es==vgav s AT'::  %*Owta Observation j NA l l4&A !@le4 i

s(lB i@ [!0t0r0IS{

3 9

'  ?; t:

go e ve-~  :=~rtvr ~

L.DC.AN Op aggggAsg .

ogtra,gg- Opat W a AwCuN Of AC"'?Vf*

l NA ]

NA l

(

.si{ZI@ . ,

lZl@l 2: n -

...eso~~e.. ex eru es

=vuote cgsOn e C% -

NA l

. i 10 :0 IO '@lZTv*gl @! e s

, n  :

• f*10NNf L tadvet E! p -

vu,em :es: me~ fi) l-

i. A l 2 i0 10 'O %v! .C a i n  :

60:30 08 OA u AOC *: .aO,U-'O b#

-*'t OEsOP'C% .

.l

, i_ s: ,it qc:! - NA

_v- .:

' '

• N ac usE ON LY B206220301 820611 ,

.:: [-I,,'its:=-c~h PDR ADOCK 05000373 PDR  !  : i,,,,,,i;,,,:

N g.  ! NA S SE 19 g:. -

~

" ~

t i N