05000298/LER-1980-036-03, /03L-0:on 801003,valve RW-AO-95 Would Not Close within Time Limit.Caused by Miller-64A One Piston Air Operator,Which Is Valve Operator on Discharge Valve,Not Closing.Valve Tested Satisfactorily for Last Four Wks

From kanterella
(Redirected from ML20002A768)
Jump to navigation Jump to search
/03L-0:on 801003,valve RW-AO-95 Would Not Close within Time Limit.Caused by Miller-64A One Piston Air Operator,Which Is Valve Operator on Discharge Valve,Not Closing.Valve Tested Satisfactorily for Last Four Wks
ML20002A768
Person / Time
Site: Cooper Entergy icon.png
Issue date: 10/31/1980
From: Scheer J
NEBRASKA PUBLIC POWER DISTRICT
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20002A767 List:
References
LER-80-036-03L, LER-80-36-3L, NUDOCS 8011210499
Download: ML20002A768 (1)


LER-1980-036, /03L-0:on 801003,valve RW-AO-95 Would Not Close within Time Limit.Caused by Miller-64A One Piston Air Operator,Which Is Valve Operator on Discharge Valve,Not Closing.Valve Tested Satisfactorily for Last Four Wks
Event date:
Report date:
2981980036R03 - NRC Website

text

,

~

>"'3 *F O R M'366 U. S. NUCLE A17.EGULATOIY COMMISSION I

h V

LICENSEE EVENT REPORT l

(PLEASE PRINT OR TYPE ALL REQUIREo (NFORMATIONI CONTROL BLOCK' l l

l l

l l

ITTT] l Nl El Cl Pl RI 1l@l 01 d -l 0 l 0 l 0l Ol -l 0l Ol Ol@l 4 l 1 l 1l Il ll@l l

l@

7 8 9 LaCENSEE CODE 14 15 LacENSE NUMBER 25 26 LICENSE TYPE J0 57 LAT 58 CON'T IOI11

$$ "CE l Lj@l0 l 5 l 0 l 0 l 0 l 2j_9l 8l@l il 01 Ol 18 l 0 l@l 11 Ol 3l 11 8l Ol@

7 6

60 61 DOCK ET NUuS ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 [During normal operation whP e performing S.P. 6.3.1.4, RW-AO-95 would not close l

I O l a i Iwithin T.S. time limit. RW-AO-95 is recuired to close in _< 15 seconds per RTS I

13.7.D.1, Table 3.7.1. The valve was closed manually and no significant occurrence i

o 4 IoIs1 Itook place. RW-AO-94 was tagged closed per Tech. Spec. 3.7.D.2.

There were no ad-I l

1016 I lverse nffects to nublic han11-h pnd unf 7,

l0 l 7 l l l

I LO I R ] l 7

8 9 OE COOE Susc E CovPONENT CODE Susc DE SL E

Ld2]

l M l A l@ [X,l@ [Zj@ l Vl Al Ll Vl 0l Pl@ J@ ] @

7 8

9 to is IJ IJ-its l9 10 SE QUE N TI AL OCCUR R E NCE R EFOR T REVISION tgR Ro EVENTYEAR REPORT NO.

COOE TYPE NO.

@ tgg 18101 l-l 1013 l 61 1/l 10131 i Ll l-l 1 01

.,21 22 23 24 26 27 23 29 30 31 J2 i KEN A TO ON PLANT 4ET O HOURS S8 IT FOR S.

SUPPLt

%IANUF CTURER lC l@l Zl@

[ Z_j@

[Z_j@

l 0l Ol 0l 0l [Nj@

l l@

l Z l@

lZ 1919 l9 l@

JJ J4 JS 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

l i l o I lA M111er-64A one piston air operator which is the valve operator on a discharge I

i i Ivalve from drvwell ecuinment hn "C" would not close. The vMve han been tested I

tweekly for the last four weeks and has operated properly. To prevent further occur-1 i 2 y jrences, the valve cycle fTequency has been increased from quarterly to monthly.

I I

mi 7

5 9 80 ST s

% POWER OTHERSTATUS SCO Y

DISCOVERY DESCRIPTION W (JJ@ l0 l 9 l 5 l@!

NA I

I Bl@l operator Observation l

A!Tivity CC4 TENT -

32 o

44 4s as 80 RELE ASED OF RELE ASE AMOUNT OF ACTIVITV LOCATION OF RELEASE NA l

l NA l

Ii IeI W @ W@l 7

8 9 10 11 44 45 80 PER$0NNEL f APOSURES NuY8 t R TYPE

DESCRIPTION

1 Til 101010 l@lz_j@l l

u

'2 n RSONNE L,~20R'iES NUMME R

DESCRIPTION

I EC I n l n i n l@l u

M 9 11 IJ 80 L uss OF Ott DAMAGE TO F ACILITV Q TYPE DESCHiPf 80N v

NA I

8 L7J@l i

n

'l to 80 e

I E C641Pf 40N Nh,u@l NA l

1111till11i!l}

' o f

M

')

10 ti8 69 80 5 402-825-3811

{

Jerry L. Scheer PHONE:

NAVE OF PREPARER sol un o V99