05000366/LER-1978-072-03, /03L-0 on 781117:during Reactor Water Level Test & Calibr HND-2-5281,2B21-NO25A Failed to Meet Acceptance Criteria Due to Mech Failure of Instru.Caused by Binding of Pointer Shaft Inits Bushing on Low End of Scale: Difference between revisions

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#REDIRECT [[05000366/LER-1978-072-03, Scram Primary Containment Isolation Level Indicating Switch 2B21-NO25A Failed to Meet Acceptance Criteria.Caused by Pointer Shaft Binding. Instrument Replaced & Calibr]]
{{Adams
| number = ML20147C147
| issue date = 12/01/1978
| title = /03L-0 on 781117:during Reactor Water Level Test & Calibr HND-2-5281,2B21-NO25A Failed to Meet Acceptance Criteria Due to Mech Failure of Instru.Caused by Binding of Pointer Shaft Inits Bushing on Low End of Scale
| author name = Nix R
| author affiliation = GEORGIA POWER CO.
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
| docket = 05000366
| license number =
| contact person =
| document report number = LER-78-072-03L-01, LER-78-72-3L-1, NUDOCS 7812180167
| package number = ML20147C135
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = /03L-0 on 781117:during Reactor Water Level Test & Calibr HND-2-5281,2B21-NO25A Failed to Meet Acceptance Criteria Due to Mech Failure of Instru.Caused by Binding of Pointer Shaft Inits Bushing on Low End of Scale
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000366
| LER year = 1978
| LER number = 72
| LER revision = 3
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
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U.S. NUCLE AR REGULA10RY COMMt'iSION NRC F OHM 366 (777)
LICEf4SEE EVENT ItEPOllT CON 1ROL B LOCK: l l 1 l \\ \\ lh (PLE ASE PRtHT OR TYPE ALL RE OutRED INF ORMAf tONI j
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{{LER-Nav}}

Revision as of 19:26, 24 May 2025

/03L-0 on 781117:during Reactor Water Level Test & Calibr HND-2-5281,2B21-NO25A Failed to Meet Acceptance Criteria Due to Mech Failure of Instru.Caused by Binding of Pointer Shaft Inits Bushing on Low End of Scale
ML20147C147
Person / Time
Site:  
Issue date: 12/01/1978
From: Nix R
GEORGIA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20147C135 List:
References
LER-78-072-03L-01, LER-78-72-3L-1, NUDOCS 7812180167
Download: ML20147C147 (1)


LER-1978-072, /03L-0 on 781117:during Reactor Water Level Test & Calibr HND-2-5281,2B21-NO25A Failed to Meet Acceptance Criteria Due to Mech Failure of Instru.Caused by Binding of Pointer Shaft Inits Bushing on Low End of Scale
Event date:
Report date:
3661978072R03 - NRC Website

text

{

ii ll.)

V.

f

~

U.S. NUCLE AR REGULA10RY COMMt'iSION NRC F OHM 366 (777)

LICEf4SEE EVENT ItEPOllT CON 1ROL B LOCK: l l 1 l \\ \\ lh (PLE ASE PRtHT OR TYPE ALL RE OutRED INF ORMAf tONI j

i TITl l cl Al E l 11 HI 21@l 01010101010101010101 oJ@f 4 li l i 11111@l I l@

P S 9 LIG{.N5LL CVOL I4 IS LtCLN',t htWeat H 23 2t>

kn.LNl,L Tirg JJ bl LA f tA lolil n',0 Lij@l ol 5101010 ! 316161G1111111717 I R IGli i 2 i n l i i 7 l a l@

CON'T t

'es L'J tb(NT QAIL f4 7'a itEPQ41DAIE MJ t,a e,i OL/.FLIhU'igLH D

5 EVENT DESCRIPTION AND PROBABLE CON 0(OUCNCES O'o

  • [ TIT) 1 While performino Reactor water level instrument FT&C HUP-2-3101 and calibration l

Hf P-2-5281, 2B21-U025A failed to meet accepta e criteria due to mechanical failure i

ITIT) 1 lo p l l of the instrument. Instrument was replace

'ated and functionally tested. There j i

10 l$1 Lwas no effect on safe plant operation.

i o c, I

1 10171 1 I

(TITII w

C DE OE S C E CO\\tPONE NT CODE SUB DE 5'

Of 1 11 BlO LEj@ [Zj@ [Z j Z l Z ll l Z l Z j@ g@ y @

a 9

)

S S

IG tt 42 82 45 nd N

REVIDON SE QUE N TIAL OCCURREACC REFOni LE tytNTvfAR REPO4f NO.

CODE TYPE Wo.

@,aj;R RO1.7181 L-J 1 01 71 zi g

10131 W

H L.J g,',

_2e a

n 24 z.

2r n

2a u

u 1A EN A iO O PL T

i MOURS U 6

D 80 t B.

LE HA U, it 54tR

$l2_.J6 LZ_.J@

W O I 01 00101 lfLl@

l Ni@

W@ f7 l o l o l o l@

3/

4J 46 42 44 A4 43 3

34 3>

a CAuSE OCSCniPTION AND CORREC14VE ACTIONS 73 g i instrument 2021-No2EA failed to meet acceptance criteria because the pointer shaf t I

t I

M i was binding in its bushinq on the low end of the scale. The inc,trument. Yprway I

g,1, j l model 4418C, was replaced, calibrated and functionally tested.

I fTTa~l l 1

EI W

% POtyt R O fHf R S T ATUC CLi O F DCC0\\'t RY DESCFtiPliOM flA I W @l Surveillance Testina l

&fA,

@ [Lj@ l017l0l@]

8 L1J @o o,O'?

<r 48nvity toCitioN o, mem @

8 Auou ro,.Cvim v @ I C

"A I

I eni Asi arum LZ.J31

~

nnwNNE.,oss.is ouc.i,vios @

l uVme n n,

m i Oi of oi@L.ZJ@l

"^

..so,4'is,u'Au ouCai,noN@ NA l

uume R fit.Tl 101 al 018) w ii n

l 1 9t QN [IE.l L, ZJOI"L',1 N^

Lri tl^

I 111111111111 DI. 5CHlP f lON t%U], 31 2 o Os ss w&

I e e to

~

PHONE:

.JAME OF Pnt PAntR duperintendUnt of naintenance

(

S 7 G 121801Co7 "b