05000325/LER-1979-023-03, /03X-1 on 790429:control Rod 10-07 Had No Indication at Notch 47.Caused by Switch Grounded to Prototypic Inlet Piping Probe Case.Switch Wrapped in Fiberglass Tape & Returned to Svc

/03X-1 on 790429:control Rod 10-07 Had No Indication at Notch 47.Caused by Switch Grounded to Prototypic Inlet Piping Probe Case.Switch Wrapped in Fiberglass Tape & Returned to Svc

ML19261E407
Person / Time
Site:	Brunswick
Issue date:	07/03/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19261E400	List: 05000325/LER-1979-023, Forwards LER 79-023/03X-1 05000325/LER-1979-023-03, /03X-1 on 790429:control Rod 10-07 Had No Indication at Notch 47.Caused by Switch Grounded to Prototypic Inlet Piping Probe Case.Switch Wrapped in Fiberglass Tape & Returned to Svc
References
LER-79-023-03X, LER-79-23-3X, NUDOCS 7907060412
Download: ML19261E407 (1)

LER-1979-023, /03X-1 on 790429:control Rod 10-07 Had No Indication at Notch 47.Caused by Switch Grounded to Prototypic Inlet Piping Probe Case.Switch Wrapped in Fiberglass Tape & Returned to Svc

Event date:
Report date:
3251979023R03 - NRC Website

text

.pr. F O RM 366 U. S NUCL E AR REGUL AT OH Y COMMISSION (7 /7)

LICENSEE EVLhlT REPORT corinotintocK.(_[

}

l l@

PLE ASE PRINT OR TYPE ALL REQUIRED INF ORMATION) 0 0 0[0 - 0l0_jh!4 1l1 1l1 h!

l l@

FlElPll!hl0lQ3-0 h

C

!O 1

H 9 L IC E P.'. t l ( t 6

14 15 t l C E P.J E *

>'1

'o i l C l *. N t TvvE JJ Si LATSd

..:O N ' T Et LTJhl o siol-Io 312 5_.j@l0 41219 7Iolhlo 710 3 7 9th 10 1

6 t~

t.,1 Lrj,ET*

'9 E H 6+

Ek ENT LATE

?4

/>

HE Pen T D AT E EJ EVENT DE SCRIP TION Ar.D PHCtl ABLE CO".SEQUU CES h

!&ile perfor inn PT 141Cmi!.ro l n oL0 p o ra b i l i t Chock._ rod _lO:0' did Tmrhwo indica-I [0

2 la 3

Ition at notch 47.

All other i n d i c a t i o n s w e re_uo_ma l.

I [Rech ni ca l Spec i f i ca t i on 3.1.3.7a _6.9.1.9h)

I lo a

1 l

lo s

po l

I o

i l

\\

l o

s

[

w g,

S1'

'A; r

.i

's (Atie C c..

t t

• L *. T 1 ()! '

L ':Ji L S U l'. DE s

Z lZ l ZI Zl Zlh l 7lh W h I l D l h l ' l(')

Z lh lZ o

!a e

u o

o o

u u n e.

m-n u -o r "EvmoN

', L '. T V [ /. 6 {

li F ' ' H T

• L; m

TeFl

• O h h ;~

(( 7l 9]

- l l0 l2 l3 l/

lo l3 l lxl

- j l 1l

_c a

n C C'.'F C '. E N T Ph :'fi rf F6i+

A I T A.: '/ t '. T PhU

,. 71!

oT bi e

l J.'

F U. i '.1

, L n 5; Pr! E f'

",'.UTAETUREH TA*E' Bl[)l7lh lZ h Zlh 0 l 0 l 0 Y l 5',d'. T i t :>@

lNQ N@

! ! /..

i

. /

4 4

s lN G l0 8 0l@

JJ

4 43 41 42 43 44 47 causc oErcmriioy eco ConHEC Ti'. E AC TICM W [ trhe switch for the notch 47 indication was found grounded to the PIP probe case.

The i

Li 1

iswitch.as wrapped with fiberelass tape and the switch returned to service in satis-I

i i factory condition. This is considered an isolated event and no further action is I

required.

I

!i

,i a

l I

s

)

m h

'/ f I ",: r r.t. t t i T y s I r. T o in 07 P" Tait V

'. t h >

a n<bE=cn*T10N I

r R

Clg 10 i s O JO NA 1 I n e Periodic Test I

i s

s,

o m

o o

m 80 A ' 11' l i s

.T['.T J

"T:>,

t i.,I

'Ti T '/ '

lro R E L E /,

_)

, : 1E t i

.. l Z l h g'ij NA I

NA I

e s u

o u

e o

)

,7, 7,l NA l

( 0l 0 OjQ) d

/

8 9

11 1J 11 80

" " ~

w.n.@

c.4 01 01 Ol h NA 7

l i

a 8,

u u

7 7./'" " O 7907060412

/

o l W9 NA v

d 1 1

M vera...

e @*

P

15 st.("

y;.1 y

~

hl NA lll lIIlll l l}

o a,

m 80 a A. C. To lli son, Jr.

91_9-457-9521

_ _ _ _ 2