05000317/LER-1979-053-03, /03L-0:on 790928,actuator Arm for Shutdown Cooling Heat Exchanger Outlet Valve 11 Was Found Broken,Rendering Exchanger Inoperable.Caused by Failed Actuator Vane Arm Disconnecting Actuator from Valve Stem

From kanterella
(Redirected from ML19254D673)
Jump to navigation Jump to search
/03L-0:on 790928,actuator Arm for Shutdown Cooling Heat Exchanger Outlet Valve 11 Was Found Broken,Rendering Exchanger Inoperable.Caused by Failed Actuator Vane Arm Disconnecting Actuator from Valve Stem
ML19254D673
Person / Time
Site: Calvert Cliffs 
Issue date: 10/25/1979
From: Lagiewski J, Lucas C
BALTIMORE GAS & ELECTRIC CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19254D669 List:
References
LER-79-053-03L, LER-79-53-3L, NUDOCS 7910290328
Download: ML19254D673 (2)


LER-1979-053, /03L-0:on 790928,actuator Arm for Shutdown Cooling Heat Exchanger Outlet Valve 11 Was Found Broken,Rendering Exchanger Inoperable.Caused by Failed Actuator Vane Arm Disconnecting Actuator from Valve Stem
Event date:
Report date:
3171979053R03 - NRC Website

text

NHCFyH g 6 v.

...uc L 6an n ouuun. un t UU.....is: aviv 1707)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l

(PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

l o l i l I "I D i c i c l 'l l 1 jgl5ojoj-l0jojol0;ol-l0;o;g;4l1 1 1l1 gl ig i

8 3 LICENSEE CODE 14 1

LICENSE NuYBER 2b 26 LICENSE TYPE JO 57 CAT 56 CON'T 3$RC[ l ll@l O l 5 l n, 0 l 0 l 3 ] 1 l 7 l@l o l 9 l 2 l 8 7l0l@l11012lcl7 0

0 1

7 8

60 61 DOCK ET NUMBER 68 63 EVENT DATE 74 75 RE*CRT D ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h pq y [ '.'hile inve';tinatinn a raintenance recuest, raintenance rersonnel l

lo_ 3 1 dircovered that the actuator ar-for 1-CC-3829 ( 11

hu t,'cun reali ne o 14 l l " eat Exchancer "utlet "alve) was broken, renderina 11 ch 'a "r "celire 1

i n

t ' feat Exchancer inonerable ner 7.c. 3.6.2.1.

The redundant contair-art i

o s

O s

I snrav syster rar ained nnerable durire the evant.

al l c h Wn...n enn14nc I

] Heat Exchanner was returned to service on 9-2."-79 at 1500, returninc I

O 7

o a

I the containrent snrav svstem to enerabili t i.

I 63 1

8 9 SYSTEM

CAUSE

CAUSE COY 8 VALVE CODE CODE SUBCODE COYPONENT CODE SLBCODE SUBCODE l

Ig l b l@ l 2 l@ l" l0 L lY l0 lo l@

lh O

O 9

19 20 7

8 9

. i,7 11 12 12 13 SEOUENTI AL CCCU A A E *.CE RESTRT REVISION LED RO EVENT YE AR REPORT NO.

CCOE TvPE NO.

@.g.P;,1 17 oI l-1 In I;

'I l-1 in I, I i i 1-1 Lj

_ 21 27 23 24 26 27 28 23 JJ 31 22 ACTION FUTURE EF8ECT SHUTDOWN ATT ACI eV E'N T

  • P R O-4 DRl**E CCYO COYPONENT TAKEN ACTION ON PLANT YETHOD HOURS SUBYlTTED 80RY :>U S.

SwpPLIER YANUFACTURER l3 lgl34 l@

lZl@

lZl@

[n jn l0. l lv lg lv g lg l nl lip ln l@

/

t 3,

35 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h o,j l 'Ctuator "ane f r

  1. ailed ("aseneilan "ndal e71_V31'M s4ecnerer+4nn +bn l

i t attuator 'ror valve ste.

"aw va ne a r-vac iretallad = n s

,,21

.n en +.. -- ns i

to service. "urina a tela, iona conversation ei th "asoreilan ranrneanta tiva [t as decided '.'ane Ar" ratarial shrilld ha stroncar.

'ina n n' > " ann f.

l l ' ada o# stron"ar raterial wre croarad.

I n

T

- POV.E A Of**E R ST ATUS Di

.O a

D;E;yc 5 us ;g no evic.,

I t:

i "l@ 11 10 l l@l I

l ^ l@l"ainterenca rersoncel

"% nry m nn l

=

n

~

c u

v a.;,,.,

e-E.i E; C5 AELEa!E AYOUNT GF AC*l.' liv

,, ;;;: C.,

.. g, g, ; -

i - i. i e 'l @ L u g l i

I ar

~

h

.a

..Q-

)223 bob

l ;

i e fa wt w

a t99'D.,3 '.

noon nnirr Mai f Uun UrdGIiML

.c T

7 9102 9 0.3 M m we o--.m

=

4

.e,.e%-mw-

. 4.

LER fl0.

79 n53/03L EVEtlT DATE 09-28-79 k, il

, ?) j(AL "EDnRT DATE 10-25-70 90CKET t:0.

50-317 dk ATTACH"EfiT CAUSE MSCRIPTIO!1 Ai!D C00RECTIVE ACTIO!!S:

Two ams were received on an e ernencv order and installed on 1-rC-3???

end 1-CC-3326. "5en other ams are received thov will 5e installec c' other valves identical to l-CC-332C.

1223 307