05000366/LER-1979-082-03, /03L-0 on 790725:switch in low-low Water Level Recirculation Pump Logic Inoperable.Caused by Trash on Switch Contacts.Contacts Cleaned & Tested.Maint Request Issued to Inspect & Clean Other Switches

From kanterella
(Redirected from ML19242D294)
Jump to navigation Jump to search
/03L-0 on 790725:switch in low-low Water Level Recirculation Pump Logic Inoperable.Caused by Trash on Switch Contacts.Contacts Cleaned & Tested.Maint Request Issued to Inspect & Clean Other Switches
ML19242D294
Person / Time
Site: Hatch 
Issue date: 08/07/1979
From: Nix R
GEORGIA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19242D284 List:
References
LER-79-082-03L, LER-79-82-3L, NUDOCS 7908140796
Download: ML19242D294 (1)


LER-1979-082, /03L-0 on 790725:switch in low-low Water Level Recirculation Pump Logic Inoperable.Caused by Trash on Switch Contacts.Contacts Cleaned & Tested.Maint Request Issued to Inspect & Clean Other Switches
Event date:
Report date:
3661979082R03 - NRC Website

text

N 366 U..N. feULLtAH H kGULAI UHY COMMIS540N (7

LICENSEE EVENT REPORT CONTROL SLOCK: 1 I

I I

I I

lh (PLEASE PnlNT OR TYPE ALL REOUIRED INFORMATION) t 6

Lo l d I G I a l E l i I H l 2 l@l O! 0l 010 l 010 l 010 l 0 l 010 l@{ 411 I1 11 11 l@l I

l@

7 4 9 LICENSEE COgg 14 IS LICENSE NLM6EH 25 24 uCE%E TvPE A

$7 CAT $8 CON *r

[$RCI I L l@l0 l 5 l 0! 0101316 l 6 @l 0 I 712 I 5 I 7 ! o @l018 lo 17 !7 19 I @,

o i

I U

6J 6l DOCK,ET NUMBER 6d 69 EVENT OATE 14 75 REPORT DATE 80 EVENT DESCR.PTION AND PROBABLE CONSEQUENCES h o i 21 l While cerformino HNP-2-310lM 2821-N024A No. 2 switch was found to be inocerative.

I gi This switch is part of the Recirculation Pumo trio looic on icw low water level.

I o

4 l

2B21-N0248 and 2B21-N025A and B were all found to be ot;erable in each of the 1

o s I other subsystems.

No ham was done to oersonnel or eouioment and there was no I

o is I

effect on the environs.

LER-79-30 recorted a similar event.

I ol7 l

~

l 013 l

60 7

8 9 SYST E *.9

CAUSE

CAUSE COVP VALVE CCOE CODE SUSCODE COMPONENT CODE SUSCODE SUBCODE

! r l a ! @ LEJ @ l y l @ l i l ni s i T l R I u l@ Ls_J @ Lz @

J

<io 7

8 9

10 11 12 13 16 19 20 SE QUENTI AL CCOUR AENCE REPORT R EV(SiON ga ao EVENT YEAR REPCRT NO.

COOE TYPE N O.

@,g.L';

I7I9l l-l l 01 8l 2!

l/l 1013I ll l l-l l0l

_. 21 22 23 24 a6 27 23 23 30 31 32 A CTIC N FUTURE EFFECT SHUTOCWN ATT AC HM EN T NPRD4 PRIME COMP.

C09PONENT T A<!. ACTI '?e CN PLANT METHOD HOURS --

SLS vt TT E::

FORMSUS.

SL PP LI E R MANUF AC%RER lx l@l z l@

I z l@

LIJ@

I 01 n! O! 01 Nl@

l N i@

lN'@

lYl0l1l0!@

1 40 41 42 43 44 47 33 o

.2 Jo 4

CAUSE CESCRIPTION AND CCRRECTIVE ACTICNS 1 lo l The switch was fnund to be inenorablo due to t "ch locatod nn tha c'iitch cnntacte.

I 1

i l

The contacts were cleaned and orocedures HNP-2-5281 and HNP-2-3101M were i

I performed satisfactorily. A rilaintenance reauest'was issued to inspect and clean I

l all Yarway instruments with switches.

j y

l l

a 7

8 3 3C ST S

% POWER OTHER STATUS IS O RY DISCOV ERV CE$CRIPTION I-1IEl@ l0I7l2l@l NA l

lB l@l Surveillanca Testino l

A C TIVI TY CC TENT RELEASEC CF AELE ASE AMOUNT OF ACTIVITY LO' CATION OF RELE ASE m n Lu @ Lzj@l m

i N

I d

3 10 ti 44 45 S0 PE SCP.EL f d POSURES NL '3E R TYat DESCRIPTION a I 1 I O I o 10 !@l z @l Na l

i E n Cv.a',.a'L e s

%o E A C E SCntPTION i i 10 i 0 i0 i@i nA I

i 4 3 11 1.'

$3 L O~.0 C F 04 D A*.'

C E T O F ACI Lt TV

?WE C E SC H eis t'Q N I " ! (,1j@l NA I

J o >

10 83

-. [ $[Cn.pneN @

NRC USE CNLY

!.i'i Qjdl NA l

fI IIIIl!!I IIlI 1

TS o :t t, 9 40 ;

R. T.

Ni<

wf E os anc a Au En PHCNE b

7 0 0814 07c7[,