05000368/LER-1979-014-03, /03-0 on 790127:plant Protection Sys C Containment Bldg Pressure Transmitter 2PT-5603-3N Failed, Causing Hi & Hi-Hi Containment Pressure Trips.Caused by Loose Output Connection,Which Was Subsequently Reconnected

/03-0 on 790127:plant Protection Sys C Containment Bldg Pressure Transmitter 2PT-5603-3N Failed, Causing Hi & Hi-Hi Containment Pressure Trips.Caused by Loose Output Connection,Which Was Subsequently Reconnected

ML19282A782
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/26/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19282A780	List: 05000368/LER-1979-012-03, /03L-0 on 790127:core Protection Computer Channel B Failed,Resulting in Trips.Caused by Analog High Level Amplifier Card Improperly Seating in Connector.Card Reseated & Functional Test Conducted 05000368/LER-1979-013-03, /03L-0 on 790127:control Element Assembly Cluster (Ceac) Deviation Alarms Received.Caused by Disturbance of Ceac Cable Connections 05000368/LER-1979-014-03, /03-0 on 790127:plant Protection Sys C Containment Bldg Pressure Transmitter 2PT-5603-3N Failed, Causing Hi & Hi-Hi Containment Pressure Trips.Caused by Loose Output Connection,Which Was Subsequently Reconnected ML19282A779
References
LER-79-014-03L, LER-79-14-3L, NUDOCS 7903060487
Download: ML19282A782 (1)

LER-1979-014, /03-0 on 790127:plant Protection Sys C Containment Bldg Pressure Transmitter 2PT-5603-3N Failed, Causing Hi & Hi-Hi Containment Pressure Trips.Caused by Loose Output Connection,Which Was Subsequently Reconnected

Event date:
Report date:
3681979014R03 - NRC Website

text

.

N HC f fMS M M d $ PvJCl[ AF4 fif GUL ATOHY COMMtMION 17 711 LICENSEE EVENT HEPOR T EXHIBIT A (cNisotstoca 1_ j]_ j _

g ert t ast ra r st en i vrt at t u t cuint o iss c,rwatiom y lAlltlAjNj0 2 g Oj0] -!O O j 0] (0{ [0 y0ggl ; 1 l1 g v a,.s.. m.

ss

~,.,

. m.,

C Uh' i E, G.

"'f70 LL J@l015 p 101 0 l3 l o l p_Kg_0 l 1 l_.Q7 J_73_ygo 1 2 t 2 6 l 7plg 1

o_

e m.....

m.,

.....-m 4,_.,,

~

(. V k I4 I le f SC il, P Il O*J AP 3 PltOH A llt (

4.Q'.'. L iji ['JC { 3 s

FT71 !

During power Escalation Testing, Made 1 operation, PPS "c" [g L Containment Building Pressure t rans:ai t t er, 2PT-5003-3N, failed; g

[2.1.*J L_ causiin: lii and lii-ilt containnent Pressure Trips.

The af fected g

[i-[g i trips were bypassed.

The other three containment pressure tran3mitters, g

were operable.

Similar to LliR 50-308/78-033.

[TT7]l Reportable per T.S.0.9.1.9(b),

UE] L, _

I 1

4 -

ga ar ', t ( e, +

,aog, 4._,

L US t.t Oi d i *e ? t

,1

, g

si (n,g i

M W

la t/

tj

- g i

j,

.ni.,s

.i ni.+,,.,

_,u.ivi, y. >..

O i,,. a [2_l 3]

Ld LD 1111J Ld

! "I 3 i L'J L,J LO.J C.%,,".'

d3 s

"1 i

3 3,,

^4'.'l,'l L',Y".'.

o'..' A' d,

s.,'ri. ?

q

^A.,.,"', 4 ll

" y,g 7;*,y,r4 1,1 Shb hb CO

,l UI U l U j h@

ln.j@

L,1J@

lF l 1 l 8l O l@

c wu encuru m awwin ac ri.c. 6i) g[

Investigation revealed a loos t output connection which was g[

reconnected. Transmit t er w:ts returned to r, e rv i c e and trips y[

were removed from bypass.

Requirements of Action Statement ii 1il i T. S. Table 3.3-3 n9 w y met.

I' I' I I 6

')

1

1. A,f t t t f y

/7

.,9

,,a s Att.

i n w, n OT.... s, s Q,

.+...

y

,,,,,;,,g

,(

8 [Jjj@ l0l1l9 , Pw r - Esc. Testj Jtgd r

se t<-

g; i9 4.,

A Ilb e i t s wN T E P. T R1 g

Mi t i A al lJ Of H[l [ AT,[

A *,, 4 % 7, g Ay,,

' ')

t

,f P.

I h[( [ 4' l' lo } W (>J y@l NA j

NA l

3 3O I1 44 4,

."1 H. O*, *. [ t ( a 70+. sa e $

m "l

., w,.,.vg'::

. a.~

L,iJ lo 101 ol@E, JGI i

NA o

etedWNN!L.N Aa i - [ ",

b. '

ru x -,,,(9

-,w, li l-l i o l 010 j@l NA l

7 8 9 11 1 ;'

eF 084 L A a,s A gf T ') F Af r ' g f y [

M L L,'. f 1r (

( 4 ',c Fo r i e 3 1' bl L;;_J8l NA M 9 I>

i Pl.h L K I I /

t' d i..v L n Gl 4 H 91 l',N y

• • 'i'.I

( 14 f L Y I # ll Uidbl NA l

N 9 10

- J l i I! IIJ'it 1i[

Fu N4. t cr ret ra,u n Chris N. Shivel:,

501/968-2519 7903060437