ML19225C819

LER 79-047/04L-0 on 790627:condenser Vacuum Pump Radiation Monitors Inoperable More than Seven Days During Mode 1 Operation.Caused by Moisture Buildup.Engineering Evaluation Is Being Conducted

ML19225C819
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/27/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19225C815	List: ML19225C814 ML19225C819
References
LER-79-047-04L, LER-79-47-4L, NUDOCS 7908020492
Download: ML19225C819 (1)

Text

$

NRC F ORM 366 (7 77) U S NUCLE AR REGUL ATORY COMMISSION LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK ( l l l l l lh i e (PLE ASE PRINT OR TYPE ALL REOU' RED INFORMATIONI o i I A R l A j Nj 0 ygl 0 l0 l -l0 0l0 0l 0 l- l 0 l0 lgt4 1 l i l gjg[ [ lg

> a , ucENste cone i4 is ua NsE w.*e E n -

4 at t N .E ,,r< o si c Ar w COTT 3

o '

4 s5.Tc! LL_J@l015 p 10 10 i5 l 6 i

% 61 C.OC* E T PM*e E R s g O 6 p [7 [7l 9lgl0;7 l2l7 l7l 9 g t=e 6*

i EVE NT DATE is is nrposi OATE 80 EVENT DESCRIPTION AND PROB A3LE CONSEQUENCES h ULL2J lhhile in Mode 1 operatior, the Condenser Vacuum pump i i 3 t Radiation Monitors, 2RE0645 and 2RE0646, have been  ;

o 4i l inoperable for more than seven day- There has been I c s Ino primary to secondary leakage; th erefo re, the public l o r, Ihealth and safety was not end,nrered There h,ve been no I a i isimilar occurrences. Reportable per E.T.S. I Is i-1iMonitorinc _ requirement #41 in accordance with E .T. S R q

. . 5 . 6 2b . I

?

t* J SVEILU L A AE LA. E i s CCLE L. C C E S v i' . T E (a e NEN* ; o ,E AtsL

. _t scaE

,is

, ,. IM l C @ [F_J@u[Ej @ lo I l N! S l Tl R l U l@ [Ej@ Q @

9 . ii , -m

_ af Gm ENT'A. Ci . 4~ [ s Osa RE \ *SFUN

( { a kg F VE A T f E AH 5 f P04 T ?. C C C.; t i v r.g *, 0

@ NJ.'.0; "

I 719 l L_] l_01417 .oJ l0laI

_v u :4 L'._J

r ,

LimJ L_J v

Lo_J A C T p ON fVTLDE EFFECT u

s 4.. v 0 N.N A TT Ac uv E N T Newa 4 r.1 %*E Ce vr TAREN ACTION GN PLANT METi-CD .s O. A ! CC"PON E N f 4

S.P wTTEO i: 04v bu . s

• ,uret .t s e.* A N . r e r ? "En LLJ@LLJ@

>J J-

llJ@

JL L;J@

o lo I o lo Io 40I LI,i j @ L'i.J@ l_^J@ x I 9 l 9; 9 l@

Je 4 4j 43 44 gy C AUSE DESCR.cTION AND CCRREC MVE ACTIONS i o IThe condenser vacuum pumn discharce has been monitored bv i i iiii l_crah samples or use of a portable Continuous Radiation Air Monitor (MfC), I i

I a s r eouired bv E.T.S. 2.2. 2 Ga seous Discharge Monitorinc reouirement I i 3 1*3. Analvsis indicates effluent remains at < MDA. The monitor malfunctidn IiI4 1Iwas caused bv moicru m hui W n An enoineerinc evnluation is beinc conducted.

? 3 g

ST N PGwvE H C?=E N ST A TcS D5 O E Y . C A. E h > CE %H'P I ON 1 5

[3] @ 10l510 l@ Pwr Escalation i L1\J@l NA l Adfivriv CO TENT RE t,E A$ E D OF HELF ASE AY 3 TNT Of ACTIVITV t ck A rq N or HE L E ASE i c NA NA i 6 9 LU @ LZ_J@l 30 il i I 44 45 PE N'30NNE L E * *C5uPE S R0

.L:ve E P T4 PE DES.5ipTiON lil,!101ofOl@[2J@l NA l

, E u soNN A',NJ E s " _

NuveEn cEsc-,rcN@

i l-iM 101 Ol0 l@l NA 1 9 Ii 12 l L O5', f,F OR D AM A GE TO F ACILt T V pq Tf8E DE LCH LP f ION

> a L;;.J@l NA 7 ./ O<

,

• 9 io J/ L00

,,qgg DE C H.P TION 17IolLS,j@l NA

' 8 9 'o J l lIIIJlII iil

, , , _ so N A *.* E O F P R E P A n E P Chris N. Shively < 501/968-2519 PuO* E 7908020 I9R g