05000366/LER-1979-128-03, /03L-0:on 791128,drywell H & O Concentration Recorder Became Inoperative.Caused by Broken Recorder Drive String.String Replaced & Recorder Returned to Svc

/03L-0:on 791128,drywell H & O Concentration Recorder Became Inoperative.Caused by Broken Recorder Drive String.String Replaced & Recorder Returned to Svc

ML19290B638
Person / Time
Site:	Hatch
Issue date:	12/06/1979
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19290B637	List: 05000366/LER-1979-128, Forwards LER 79-128/03L-0 05000366/LER-1979-128-03, /03L-0:on 791128,drywell H & O Concentration Recorder Became Inoperative.Caused by Broken Recorder Drive String.String Replaced & Recorder Returned to Svc
References
LER-79-128-03L, LER-79-128-3L, NUDOCS 7912130392
Download: ML19290B638 (2)

LER-1979-128, /03L-0:on 791128,drywell H & O Concentration Recorder Became Inoperative.Caused by Broken Recorder Drive String.String Replaced & Recorder Returned to Svc

Event date:
Report date:
3661979128R03 - NRC Website

text

'

LICENSEE EVENT REPORT cora not stoCr.: l I

l l

l l

1 @*

& LEASE PHWT oH TYPE ALL HEQUtHED mrORMAT10M I c l A l e i 1 l ii l 2 l@! o l o l o l o l o 1.0 i o l o lo lo l o l@l4 I il 11 il il@l l

l@

.O i

18 9

" LICE Nst E CO')E 14 15 Lice r45E r.u'.MtH M

2G LtCtr.5E T VPE #J

$ 1 L A I bd 7

- T

~7 J

'i's"E LLJ@l o l s l o l o l o 13 l e l e l@l i l i 12 la l 71 91@li 12 to 1617 19 IG s

6

(,J td DCG E T P.UVJ E R ei' 63 EVENT DatE

• 4 7$

Ri80HT D ATE 80 EVENT DESCniPTION AND PROU ABLE CONSEGUENCES h l During full power operation 2P33-R601A, Drywell Hydrogen an.d Oxygen Concentration l

a 2

l Reco rder, becar.c inopera tive.

2P33-R601B was operative and provided the necessary

.o 3

l control room indication. There was no affect on the environs.

This is a non-repeti-l

,o 4

[tive event.

l

,o 3

l

,.o 6

l l

[

, ;O 7

3Tirl I I

80 8 9 SYSTEM

CAUSE

CAUSE COVP.

VALVE CODE COCE SUB; ODE COMPONENT CODE 54Uh CODE SUSCODE l s l E l@ [Ej@ [E l@ l Il Nl Sl Tl Rl U j@

l R l@ [Zj @

iO 9

8 9

to 11 12 13 18 i9 2d SE QUENTI AL OCCURRENCE REPORT R E VISION LER PO EVE NT YE AR REPORT NO.

CODE TYPE NO.

@,aggg [21 71 91 l-l I 11 2l 81 l-l 10131 lL l l-W 22 23 24 20 27 28 29 Ju 31 32 ACTION F U T U r' E EFFECT S W U T D O.'. N ATT AC H'.t E N T NPH CN4 PRl *.' E cot.*P.

CottPON E N T TAKE'J A C il C*i CN 6'L ANT 8.* i T H OO HOURS 22 SUDU11TED F OH '.' > u 3.

SUPPLI E R MANUFACTURER [Dj@lZ l@

l Z l@

[Zj@

jo l0 lo l l

lY@

lNl@

l Aj@

l G l 0 l 8 l o l@

34 h

3G 3/

40 41 42 43 44 47

, 33 CAUSE DESCRIPTION AND CORRECTtVE ACTIONS h l The recorder drive string was found to be broken. The drive string was replaced l

^

i o

[i [i j ] and the recorder returned to operabic status.

I li1711 tilal1 1

I I

d so a 9

's'T 2!Us*

orHEn sTArus @ '7s["oISnS oisCOveny ctsOniPriO a @

_ eCe.E R D

NA l

l B l@l operator observation l

{ i l5 l W@

l l0 l0 l@l

'2 8"

48TiviTY CCMissT AuOusT OF Acovity @ l LOCAllON OF RELE ASE @

nEtE Aun or atLE asE NA l

NA l

y Q [Zjgl li c

C 9 10 ft 44 45 60 PLn5CNN!L FVJA4is N ' ' '.'0 F H TYpf DESCHIP ' CN NA l

ITUl l 0 l 0 Oj@lZlOl

'3 Pt nsos NE L im'd,Es D**

T CEscn..nON@

NA ea o

, 1_

l s,... u n Io oIol@l o

i

.2 i,

i2 eo L OSS OF OH D A\\* AGE TO TAJ8LITY O" 1555 091

-..,~s NA l

1_4 R l_Zj@(

,o so 7 91213 0 3c/ 2 121"lL:dr5""'n'tk.ni.,i,UN@

Nncum ONLY

,av NA l

lllllllllllll}

8[

u c.,

so a a 3 in 912-367-7781 N.Wt OF PREPAHf 64 FHONE:

NARRATIVE

REPORT O

Ceorgia Power Company Plant E. 1. Itatch Baxley, Georgia 31513 Reportable Occurrence Report No. 50-366/1979-128 During full power operation on November 28, 1979, one of the drywell 2P33-R60lv. was found to hydrogen and oxygen concentration recorders, found to The other recorder for the same serviac w.is be inoperative.

be operating satisf actorily.

With one recorder inopernive the plant The recorder was placed in a thirty day limiting condition of operct:f on.

was recoved, repaired and returned to operable status. althin two days of the event.

The type recorder used in this application is also usoJ in many other The problem liniting condition of operation applications on both tnits.

This causing the recorder to be inoperative was a broken drive st ring.

item which does not reflect a type failure is a routine maint enance generic problem.

on the environs as a result of this event.

Plant There was no affect operation continued to be nor.nal during the limiting endition of operation.

The event was non-repetitive.

1555 092