ML19241A931: Difference between revisions
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{{#Wiki_filter:NT C Ft ' 366 U. S. NUCLE AR REGULATOR Y COMMisSloN (7-771 | {{#Wiki_filter:NT C Ft ' 366 U. S. NUCLE AR REGULATOR Y COMMisSloN (7-771 LICENSEE EVENT REPORT CCNTROL BLOCK. l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i e o 1 llLIOlAlDIIl@l0 14 0 0 !- l0 0 l0 l- l0 ln nl@l4l1l1l1 J3 I1 l@[_ l l@ | ||
7 4 i L6CENSEE CODE :5 L;CE N >E NuvdEH 2b LICENSE TvPE d ST .AI 5d CCN" I | |||
LICENSEE EVENT REPORT | 0 1 b7Rd 60I i. @LQ) i 1 1l ^ ' NLV8ia 1; l5 IL @lnlAl0l1l7l9 hl0(6l2I7l7 l4 6 | ||
CCNTROL BLOCK. l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i e o 1 llLIOlAlDIIl@l0 14 0 0 !- l0 0 l0 l- l0 ln nl@l4l1l1l1 J3 I1 l@[_ l l@ | |||
7 4 i L6CENSEE CODE :5 L;CE N >E NuvdEH 2b LICENSE TvPE d ST .AI 5d CCN" | |||
$ til 6 63 EVEN T DATE 74 15 REPOR T D A"E dJ EVENT DESCRIPTION AND PRO - + .ONSELUENCESh a : [ The drvwell t3 suporession chamber vacaum brnaker Div:s ion if ,1,c e vs mm bra & r l n 2 l was f r und tripped and reported as a Non-Recortable Occurrence nn April 10. 1979. and I jo .; ! should be reclassified. At the t ime the breaker was found t rinced, Division i alarm I ois l system was operable and the drywell ;o suporession chamber d/o was constant, The I a je l alar systen Joes rot a f fect the operability of the vacuum breakers, thus the vacuum j gl q jbreaker system was at al1 tines operable. [ | $ til 6 63 EVEN T DATE 74 15 REPOR T D A"E dJ EVENT DESCRIPTION AND PRO - + .ONSELUENCESh a : [ The drvwell t3 suporession chamber vacaum brnaker Div:s ion if ,1,c e vs mm bra & r l n 2 l was f r und tripped and reported as a Non-Recortable Occurrence nn April 10. 1979. and I jo .; ! should be reclassified. At the t ime the breaker was found t rinced, Division i alarm I ois l system was operable and the drywell ;o suporession chamber d/o was constant, The I a je l alar systen Joes rot a f fect the operability of the vacuum breakers, thus the vacuum j gl q jbreaker system was at al1 tines operable. [ | ||
] lr l } | ] lr l } | ||
| Line 33: | Line 28: | ||
@.I'EA,",d l l 7 I a l L, 2 1-1 u | @.I'EA,",d l l 7 I a l L, 2 1-1 u | ||
10 u | 10 u | ||
21 il:s l/l | 21 il:s l/l 10l2 I | ||
10l2 I | |||
:8 n It I u | :8 n It I u | ||
b -J v | b -J v | ||
| Line 44: | Line 37: | ||
' !' lThe cause of the breaker trip i 5 unknown. A Diviei^n k en d o r *r!- T- .a-~~.-- in +',e I | ' !' lThe cause of the breaker trip i 5 unknown. A Diviei^n k en d o r *r!- T- .a-~~.-- in +',e I | ||
, , lthere has not been a problem of trippiry in the past. The Division If breaker was I g | , , lthere has not been a problem of trippiry in the past. The Division If breaker was I g | ||
reclosed on April 10, with no re-occurrence of the problem. l | reclosed on April 10, with no re-occurrence of the problem. l l l EEI3 3 -J 7 80 F ACiLt T v w VETwCD CF STATLS % *C AE A '# 0%ER STATU< "" | ||
l l EEI3 3 -J 7 80 F ACiLt T v w VETwCD CF STATLS % *C AE A '# 0%ER STATU< "" | |||
CISCC'ERY DISCOVERY OESCFi:PTION 32 l1 s l El@ l 0 9 l 6 l@ | CISCC'ERY DISCOVERY OESCFi:PTION 32 l1 s l El@ l 0 9 l 6 l@ | ||
) 1; NT 44 l l45A l@l 0cerat ional Event 80 l | ) 1; NT 44 l l45A l@l 0cerat ional Event 80 l | ||
7 4 i2 13 46 ACTr.nTV CC N 'E'? | 7 4 i2 13 46 ACTr.nTV CC N 'E'? | ||
AELEASED ~;F A E E A ~ E AVJ.;N? ";F ACit vl TY - LOCATION CF AELE ASE Zl @ Z lgl NA e l NA l 4 . tJ 17 s4 45 30 | |||
AELEASED ~;F A E E A ~ E AVJ.;N? ";F ACit vl TY - LOCATION CF AELE ASE Zl @ Z lgl NA | |||
e l NA l 4 . tJ 17 s4 45 30 | |||
*E P ; NNE L E R PCSLRES E' A [Q | *E P ; NNE L E R PCSLRES E' A [Q | ||
<>r | <>r | ||
| Line 59: | Line 47: | ||
U ffh ty , _ | U ffh ty , _ | ||
[t l0 l J l 0al@l Z @l NA 4 , | [t l0 l J l 0al@l Z @l NA 4 , | ||
s scNNeti.mA.ES u 33 ~ e, g U.% s. 0 y . ., y,w | s scNNeti.mA.ES u 33 ~ e, g U.% s. 0 y . ., y,w g | ||
g | |||
- ~NO m h> ,1 e*l*{* | - ~NO m h> ,1 e*l*{* | ||
- w- u~p f flw 4 | - w- u~p f flw 4 | ||
[0 0Q 4 n s , | [0 0Q 4 n s , | ||
NA t; g g [~4 sJ | NA t; g g [~4 sJ | ||
- 'F, C A C AYAGE TO r A;r ti Tv l.: | |||
- 'F, C A C AYAGE TO r A;r ti Tv | |||
l.: | |||
Z f[b D i (J jp 07 ] 10 /l // $^ | Z f[b D i (J jp 07 ] 10 /l // $^ | ||
4 f | 4 f | ||
#- ^ ' ' | #- ^ ' ' | ||
xC~..,Nfs | xC~..,Nfs NPC LV LY | ||
NPC LV LY | |||
!.l '. N.'' v L "A i | !.l '. N.'' v L "A i | ||
I lil ''lli'''' ! | I lil ''lli'''' ! | ||
- , a o .= | - , a o .= | ||
J. Vahr..qwalJ 30c 654-2241 Ext. 195 | J. Vahr..qwalJ 30c 654-2241 Ext. 195 | ||
. c > w e p :. a s . pocNE -}} | . c > w e p :. a s . pocNE -}} | ||
Latest revision as of 03:05, 2 February 2020
| ML19241A931 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 06/27/1979 |
| From: | Vahrenwald J COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19241A930 | List: |
| References | |
| LER-79-021-03L-02, LER-79-21-3L-2, NUDOCS 7907110445 | |
| Download: ML19241A931 (1) | |
Text
NT C Ft ' 366 U. S. NUCLE AR REGULATOR Y COMMisSloN (7-771 LICENSEE EVENT REPORT CCNTROL BLOCK. l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i e o 1 llLIOlAlDIIl@l0 14 0 0 !- l0 0 l0 l- l0 ln nl@l4l1l1l1 J3 I1 l@[_ l l@
7 4 i L6CENSEE CODE :5 L;CE N >E NuvdEH 2b LICENSE TvPE d ST .AI 5d CCN" I
0 1 b7Rd 60I i. @LQ) i 1 1l ^ ' NLV8ia 1; l5 IL @lnlAl0l1l7l9 hl0(6l2I7l7 l4 6
$ til 6 63 EVEN T DATE 74 15 REPOR T D A"E dJ EVENT DESCRIPTION AND PRO - + .ONSELUENCESh a : [ The drvwell t3 suporession chamber vacaum brnaker Div:s ion if ,1,c e vs mm bra & r l n 2 l was f r und tripped and reported as a Non-Recortable Occurrence nn April 10. 1979. and I jo .; ! should be reclassified. At the t ime the breaker was found t rinced, Division i alarm I ois l system was operable and the drywell ;o suporession chamber d/o was constant, The I a je l alar systen Joes rot a f fect the operability of the vacuum breakers, thus the vacuum j gl q jbreaker system was at al1 tines operable. [
] lr l }
7 3 3 %
CYSTEM CAsSE CALSE CCYP valve CODE COCE SL'B C O D E COVPCNENT CCDE SLBCCCE SU8CCCE 7
d 6 9
( cl al 10 11 lAl 12 l rl vl T Bl0 lvl 13 18 l3 l h I Zl Is 20 SEQUE NTI AL OCCU R R E NCE REPCRT A E % isiON An fEVENTYEAA R EPCR T NO. COOE TYPE N O.
@.I'EA,",d l l 7 I a l L, 2 1-1 u
10 u
21 il:s l/l 10l2 I
- 8 n It I u
b -J v
l0 l n
AC':CN FUTLAE EFFECT Sr4 V T DC. N ATT AC-V E N T NPAD4 P AlYE CCCo. C C Y P C ?. t' N T i A r. E N ACT!ON CNPLANT YETHCO HOUR 4 SLSviTTED FCH U dc8. SLGPLI E 9 UANLTACTLHE4 lx l@_zl@ lzl@ Ld@ l 01 0 0' of L1J@ LtJ@ Isl@ I c 10 la lo i@
23 4 35 ;o 31 40 el 42 43 44 4/
CAUSE oESCRIPTICN AND CCRRECTIVE ACTIONS
' !' lThe cause of the breaker trip i 5 unknown. A Diviei^n k en d o r *r!- T- .a-~~.-- in +',e I
, , lthere has not been a problem of trippiry in the past. The Division If breaker was I g
reclosed on April 10, with no re-occurrence of the problem. l l l EEI3 3 -J 7 80 F ACiLt T v w VETwCD CF STATLS % *C AE A '# 0%ER STATU< ""
CISCC'ERY DISCOVERY OESCFi:PTION 32 l1 s l El@ l 0 9 l 6 l@
) 1; NT 44 l l45A l@l 0cerat ional Event 80 l
7 4 i2 13 46 ACTr.nTV CC N 'E'?
AELEASED ~;F A E E A ~ E AVJ.;N? ";F ACit vl TY - LOCATION CF AELE ASE Zl @ Z lgl NA e l NA l 4 . tJ 17 s4 45 30
- E P ; NNE L E R PCSLRES E' A [Q
<>r
. . . cEA TvPs CELC AianCN @ #c ^;E. ';h' t,h @}d j[f4 -
U ffh ty , _
[t l0 l J l 0al@l Z @l NA 4 ,
s scNNeti.mA.ES u 33 ~ e, g U.% s. 0 y . ., y,w g
- ~NO m h> ,1 e*l*{*
- w- u~p f flw 4
[0 0Q 4 n s ,
NA t; g g [~4 sJ
- 'F, C A C AYAGE TO r A;r ti Tv l.:
Z f[b D i (J jp 07 ] 10 /l // $^
4 f
- - ^ ' '
xC~..,Nfs NPC LV LY
!.l '. N. v L "A i
I lil lli'' !
- , a o .=
J. Vahr..qwalJ 30c 654-2241 Ext. 195
. c > w e p :. a s . pocNE -