05000369/LER-1981-134-03, /03L-0:on 810809,alarms Received at Heating, Ventilation & Air Conditioning Panel in Control Room Indicating Loss of Sample Flow Through Radiation Monitor EMF-43A.Cause Unknown

/03L-0:on 810809,alarms Received at Heating, Ventilation & Air Conditioning Panel in Control Room Indicating Loss of Sample Flow Through Radiation Monitor EMF-43A.Cause Unknown

ML20010F946
Person / Time
Site:	McGuire
Issue date:	09/03/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010F942	List: 05000369/LER-1981-134, Forwards LER 81-134/03L-0 05000369/LER-1981-134-03, /03L-0:on 810809,alarms Received at Heating, Ventilation & Air Conditioning Panel in Control Room Indicating Loss of Sample Flow Through Radiation Monitor EMF-43A.Cause Unknown
References
LER-81-134-03L, LER-81-134-3L, NUDOCS 8109150140
Download: ML20010F946 (1)

LER-1981-134, /03L-0:on 810809,alarms Received at Heating, Ventilation & Air Conditioning Panel in Control Room Indicating Loss of Sample Flow Through Radiation Monitor EMF-43A.Cause Unknown

Event date:
Report date:
3691981134R03 - NRC Website

text

.

O e

t waC PCans :aa u. s. N*JCLEAA MsCULATOnY coa. nets 3JC,s 3 ?11 LICENSc5 EVENT REPCRT EXHIBIT A

NimCL aLocc l I

i I i

etzAss **in en tves att macuanto i%ccaadarie=

i Is iil IN I ct M 1 c I sl 1 Qf 0 l 01 -10101010101 - 101 OQ( 4 j 1l1 ; 1l Ig{

l I

,, m g m... m.

m m,... -..

==,.-

lg 9 i oi 38 O9 i si lei,o 5 i O i Oi 0: 3 i si 9ei oi si i,

. i

~>= t.t ei o i i

i i

i i

o.,,,,

tvavr :sscaime 4, o,acsmass.:s.sacusa css i3,2!l While in Mode 3, alarms were rec ed at the HVAC panel in the Control Room indicating a loss of sample flow through a radiation monitor (EMF-43A) for the 3, :,, Control Room outside air intake. The monitor was Aclared inoperable per T.S.

3.3.3.1 which is reportable pursuant to T.S. 6.9.1.13(b). Because of the

,,,,,, availability of a redundant "B"

train, in addition to respiratory protective e

the I s i r ! L_ quipment provided to Control Room personnel, this incident did not af f ect

[

,,,,, safe operation of the plant or the health and safety of the public.

a mn.

u e

56 00C4 000.

c:ce

macm.wf: C.

stec ;g ggs ::q l_3. s i I Bl Pf @ Q@ [ Z l@ l IIN i S I Tl Rt U t@ l Elg g

m

'.*E;"#

c=-a;;~a

~_7,

' a : -

b,,"_,,,. o. r..

l_

l 1 f 314 l y

10 13 l l Ll L_1

,T,7 l 8 [ lj u

=

a n

a u

=

Y

a:=r *=

-. p T.%m

,t[: *.. ~.'5:

2:,~~

I o i oD;'..

'MVU@

Lz'@

LJ@

I 3:

J i

i@

iL:@

".uss :sscaimen As.o ::pasenvs 4,:- eusp, unknown.' Action statement

,aiiThe cause of this ine_ident is i,

i,,,,i implemented when the monitor was declared inoperable. Examination of the moni,

tor revealed the vacuum pump was in the " auto" mode but had stopped. When it

,,,,,; was switched to " manual" mode the pump started. The flow rate, vacuum and alar,m setpoints were checked and found to be properly working. The pump was restarted t't.! l 8,Lin the 'hutd' mode and the a rn,cgegrgd.

fit)

(js) ' 0'l Olgl ModeN**"'

( *]

Audible arfQi71$'1'M1$r j

'.Enwn ::Sn=r

'8 aa ouwr e, *cmww @ l tac,rie, c,.,o" @

! ' i e 1 L.z I d* LzJ@l ntzAsso

• stus.

N/A l N/A g

' '.... i o,eal,,, =oc l i i 7 I Io I o 10 @[Ij@!

N/A l

. a u. t$auu'ai.sauca no @

pensos, se' so li is t I of a i o !@l N/A l

?

.9 12 fv91 C's t i i e1 (Z j@l N/A

?

. e.

to suetsc w so issu so escPir' toes

$88C USE OesLY I I 8I obi N/A I

e!IIiiiei!

il r

is Phillip B. Nardoci

(?04) 373-7432 nea e ce amaraasri 8109150140 810903 PDR ADOCK 05000369 5

PDR

{