ML19323C883: Difference between revisions
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Line 23: | Line 23: | ||
..n - | ..n - | ||
- 8.0 0519 0 s~. ):[-[- | - 8.0 0519 0 s~. ):[-[- | ||
w-... | w-... | ||
O. . | O. . | ||
. . ~ . . . . 2 .: . . - Q ; : : ; . n : . . +..(., . | . . ~ . . . . 2 .: . . - Q ; : : ; . n : . . +..(., . | ||
y g :.. , - a :.: _ <.. ..z. ; . w i ~ -- . | y g :.. , - a :.: _ <.. ..z. ; . w i ~ -- . | ||
. c. ~ | . c. ~ | ||
y , -s ;... . ..:;n r ~.. . .. .> ; : 2,u . w. | y , -s ;... . ..:;n r ~.. . .. .> ; : 2,u . w. | ||
:. . .. . . 3 : . .- | :. . .. . . 3 : . .- | ||
.g . . ~ . . " 2e -. . . ' . ... . .g. | .g . . ~ . . " 2e -. . . ' . ... . .g. | ||
..y . | ..y . | ||
.g . . | .g . . | ||
., , x . . . . ; . . .v i .. , | ., , x . . . . ; . . .v i .. , | ||
l Int tial Telephone . . - - - | l Int tial Telephone . . - - - | ||
. .. .Date.or - | . .. .Date.or - | ||
Report Date: 5/13/80 e ' | Report Date: 5/13/80 e ' | ||
~ . Occurrence: 5/12/80 Initial Written . .. . .x ~;;.: . ,g ~. ,. . Time of .. , | |||
~ . Occurrence: 5/12/80 | |||
Initial Written . .. . .x ~;;.: . ,g ~. ,. . Time of .. , | |||
Report Date: 13/13/6_0 .. - Occurrence: 11:00 M | Report Date: 13/13/6_0 .. - Occurrence: 11:00 M | ||
~y ;; ..,,.a. . | ~y ;; ..,,.a. . | ||
, .= | , .= | ||
Line 68: | Line 45: | ||
. . .. ... . . . , ~ | . . .. ... . . . , ~ | ||
.. .; .:...~............,.. ~ ..r-.- _ . .-0YSTER CREEK m! CLEAR GE!!ERATING STATION .-- | .. .; .:...~............,.. ~ ..r-.- _ . .-0YSTER CREEK m! CLEAR GE!!ERATING STATION .-- | ||
'e | 'e | ||
. 7 .. ......e,. | . 7 .. ......e,. | ||
..,.l FORKED .RIVEP.. .NEW JERSEY 08731 ; | ..,.l FORKED .RIVEP.. .NEW JERSEY 08731 ; | ||
~..% . . . . . . ~ . . | ~..% . . . . . . ~ . . | ||
.. Recortsble 0ccurrence - | .. Recortsble 0ccurrence - | ||
Report tfo. 50-219/an-16 D | |||
. '. . ..d. . . . , | . '. . ..d. . . . , | ||
~ | ~ | ||
IDENTIriCATI9N ~'Yf oliitt en' or th'e' Technicalfspectrications, par.sgesch .'3.1.A.2 . | IDENTIriCATI9N ~'Yf oliitt en' or th'e' Technicalfspectrications, par.sgesch .'3.1.A.2 . | ||
OF OCCURRENCEL . .(Table 3.1.1-Itet AT2) when pressure swf tch I'3L'O' was found | OF OCCURRENCEL . .(Table 3.1.1-Itet AT2) when pressure swf tch I'3L'O' was found | ||
Line 92: | Line 60: | ||
~ - -- | ~ - -- | ||
~~.- 2...- 3;:: ., . . . , . .,T --- | ~~.- 2...- 3;:: ., . . . , . .,T --- | ||
This event is considered to be a "a. cort.1Ste awarrenca ,n da r ined | This event is considered to be a "a. cort.1Ste awarrenca ,n da r ined | ||
... . ~ f ; .4 " t M .r.;, 5nI W spar,1etq,giap3, 737 7 .pu | ... . ~ f ; .4 " t M .r.;, 5nI W spar,1etq,giap3, 737 7 .pu | ||
. q,g,2,g,2 , ,; .; , | . q,g,2,g,2 , ,; .; , | ||
COND(TIONS PHOR - | COND(TIONS PHOR - | ||
~ | ~ | ||
Line 103: | Line 69: | ||
Cold Shutdewn load Channet Ovefnq | Cold Shutdewn load Channet Ovefnq | ||
~~ | ~~ | ||
X Refueling Shutdown Routine Fewer Operation | X Refueling Shutdown Routine Fewer Operation Rootfne Startup Other (Spec li'y) - | ||
. Operation N ctnr subv i1.i.41 Reector noda switch locked in refuel Cavity flooded . . | |||
Rootfne Startup Other (Spec li'y) - | |||
. Operation | |||
N ctnr subv i1.i.41 Reector noda switch locked in refuel Cavity flooded . | |||
DESCRiprinN On Aorf1 70, loRO. while perromin? surveillanca nn nea.rster GF OCC1JPPENCE: Iced re f action sansors, crassure switch Mt."0" c roun<< | DESCRiprinN On Aorf1 70, loRO. while perromin? surveillanca nn nea.rster GF OCC1JPPENCE: Iced re f action sansors, crassure switch Mt."0" c roun<< | ||
detfec tive. Subsequent investigation (5/12/80) revealed that tbt Dressure switch would not have trippad at any pressure dua to a mislocat-d creaittnq tm- within the swf tch hevsing. | detfec tive. Subsequent investigation (5/12/80) revealed that tbt Dressure switch would not have trippad at any pressure dua to a mislocat-d creaittnq tm- within the swf tch hevsing. | ||
Line 123: | Line 79: | ||
Der r f ag | Der r f ag | ||
* h. snevsf11 rce nare crwad en a/2C/30. tha e.vfu rida n t orgssure swite.h PSt,"F)~ t et th= sene trio cMnnel was feund ccerable as well as the two r*1undant sensors, PSL"A" ful f and g>C" in the independent trip channel , | * h. snevsf11 rce nare crwad en a/2C/30. tha e.vfu rida n t orgssure swite.h PSt,"F)~ t et th= sene trio cMnnel was feund ccerable as well as the two r*1undant sensors, PSL"A" ful f and g>C" in the independent trip channel , | ||
. . s. ... ,, , , | . . s. ... ,, , , | ||
. ;.r.z,e. ; ,e- c.~..,m.r w ' q .: ar2.:s",;. | . ;.r.z,e. ; ,e- c.~..,m.r w ' q .: ar2.:s",;. | ||
m :-.m . .n. ,..,w. v.. ... m . . e . . . - w .- ., w.: n . | m :-.m . .n. ,..,w. v.. ... m . . e . . . - w .- ., w.: n . | ||
.,.e. | .,.e. | ||
.. . . . . 1 .. . m:x | .. . . . . 1 .. . m:x | ||
.-~.,u: | .-~.,u: | ||
. .,. ..y.. | . .,. ..y.. | ||
. , ..[ | . , ..[ | ||
- ,, .;.. ' *j a- . n. | |||
- ,, .;.. ' *j | |||
a- . n. | |||
. .. ' .m ,. v. . . . , . _,, ...', | . .. ' .m ,. v. . . . , . _,, ...', | ||
..W . . . . ... _ . | ..W . . . . ... _ . | ||
" ~- | " ~- | ||
- . O'. | - . O'. | ||
: f. .., . .m,,. :x. - :. .. . | : f. .., . .m,,. :x. - :. .. . | ||
... - .' M.m a.,. .. . , . . ' ....,._m . .. . | ... - .' M.m a.,. .. . , . . ' ....,._m . .. . | ||
t . , . | t . , . | ||
:.r? e Am .;,. | :.r? e Am .;,. | ||
a .: ; .q , '. 9' - p _. .; ; - .^ v. :::... .: ~ . | a .: ; .q , '. 9' - p _. .; ; - .^ v. :::... .: ~ . | ||
. .,. .x-: v s.. L .::,. . :. .: 2 . '.- v g.. | . .,. .x-: v s.. L .::,. . :. .: 2 . '.- v g.. | ||
Line 178: | Line 103: | ||
~ '' | ~ '' | ||
Report fio. 50-219/80-i6-1P ,: - | Report fio. 50-219/80-i6-1P ,: - | ||
3'- | 3'- | ||
s, . .- .; | s, . .- .; | ||
. .4. ..~.m., | . .4. ..~.m., | ||
~ . . . , . | ~ . . . , . | ||
7.. , | 7.. , | ||
s | s | ||
. ~. .. | . ~. .. | ||
w .. . . a. , . . : . , , . - - .... . - . . . . - , e' . . . | w .. . . a. , . . : . , , . - - .... . - . . . . - , e' . . . | ||
APPARE*fT CAUSE : . 6- Design ~.. Procedure ~ - - | APPARE*fT CAUSE : . 6- Design ~.. Procedure ~ - - | ||
0F OCCURRENCE: .. - 19enufacture '. T7 Unusual Service ;ondIt1on r | 0F OCCURRENCE: .. - 19enufacture '. T7 Unusual Service ;ondIt1on r L. | ||
L. | |||
,w w.--- | ,w w.--- | ||
.- ". ~ Installation / ._ . Inc .Enviromental . .. ' . . | .- ". ~ Installation / ._ . Inc .Enviromental . .. ' . . | ||
Line 218: | Line 118: | ||
: 5. . . ._ . ..f,2 Z _. ~ ~'Operater._ .._. Other (Spectfy) . _ . ._.. | : 5. . . ._ . ..f,2 Z _. ~ ~'Operater._ .._. Other (Spectfy) . _ . ._.. | ||
~ | ~ | ||
, ..,.....:.~. ...n.... .. ,, u l | |||
, ..,.....:.~. ...n.... .. ,, u | |||
l | |||
. . . . .,..-.. ....~....~.;.. . . , . . . . . | . . . . .,..-.. ....~....~.;.. . . , . . . . . | ||
,. . .:.. - , , . .=i .y '. ' _'. | ,. . .:.. - , , . .=i .y '. ' _'. | ||
L . | L . | ||
;;M ^ | ;;M ^ | ||
ANALY9IS OF The gener=*.or lead rajection sensors are p--nure swf t:Ns | ANALY9IS OF The gener=*.or lead rajection sensors are p--nure swf t:Ns | ||
~ OCCURP.ENCE: . . T '. sensing hydraulic o fi pressure on the turbine accele-atfon | ~ OCCURP.ENCE: . . T '. sensing hydraulic o fi pressure on the turbine accele-atfon | ||
._ relay. There are four sensors; two redumf ant sensors in | ._ relay. There are four sensors; two redumf ant sensors in | ||
_ , . . ., each of two indeP9"dont trip chann.T=. | _ , . . ., each of two indeP9"dont trip chann.T=. | ||
. .. ,: .. - -- .,.....c. . .. - . | . .. ,: .. - -- .,.....c. . .. - . | ||
The function of these sensor- 15 to provide an anticipatory | The function of these sensor- 15 to provide an anticipatory | ||
,,, ''- i,3. ycre s ign=1 wh-n la=4 is caja -*ad fete the gaa**5 *~ . '.a . ._ ; | ,,, ''- i,3. ycre s ign=1 wh-n la=4 is caja -*ad fete the gaa**5 *~ . '.a . ._ ; | ||
Line 252: | Line 134: | ||
_ ....signiffeince or t% failed sensor is censida cd minfra' | _ ....signiffeince or t% failed sensor is censida cd minfra' | ||
~ | ~ | ||
w. | w. | ||
~, ~ .since the redundant tefp ctwrmel sensor was nnerable and t.h* | ~, ~ .since the redundant tefp ctwrmel sensor was nnerable and t.h* | ||
4 | 4 indeca=49nt trf o chann=1 was orareSt e. The** Fora, the trip function was not Inst and a scre would have resultet f f a | ||
indeca=49nt trf o chann=1 was orareSt e. The** Fora, the trip | |||
function was not Inst and a scre would have resultet f f a | |||
' 9enerator f ood re,iection had occurred. | ' 9enerator f ood re,iection had occurred. | ||
. . s .. ,,. .,. ... . .,,... .. | . . s .. ,,. .,. ... . .,,... .. | ||
c | c | ||
. . .,n.. . . , . | . . .,n.. . . , . | ||
CORRECTIVE .''TNe defective prassure. switch was disassembled and inspected, ACTIOM: it was found that a plastic linkage that activates the swf tch had fallen out of place and caused the fs11ure. | |||
CORRECTIVE .''TNe defective prassure. switch was disassembled and inspected, ACTIOM: it was found that a plastic linkage that activates the | |||
swf tch had fallen out of place and caused the fs11ure. | |||
1 | 1 | ||
. s 1 | . s 1 1 | ||
rMt.tpg c A TA: ' Pean Centrois Im:. " | |||
o-~t Sw f M "ce ! %.che "7M - 15 | o-~t Sw f M "ce ! %.che "7M - 15 | ||
. ,_.' ~ Serf 31 Number B70 ~ ~ " | . ,_.' ~ Serf 31 Number B70 ~ ~ " | ||
Ranoa 50 to 240 05i Sa tUno: 1R0 t',I (Decreasing Traswre) | Ranoa 50 to 240 05i Sa tUno: 1R0 t',I (Decreasing Traswre) | ||
Peerared by: U ' . - ~ ' * ~ '- - A- nate: s' ' o - | Peerared by: U ' . - ~ ' * ~ '- - A- nate: s' ' o - | ||
Jim Schoffaid - | Jim Schoffaid - |
Latest revision as of 20:36, 18 February 2020
ML19323C883 | |
Person / Time | |
---|---|
Site: | Oyster Creek |
Issue date: | 05/13/1980 |
From: | Baran R, Schofield J JERSEY CENTRAL POWER & LIGHT CO. |
To: | |
Shared Package | |
ML19323C881 | List: |
References | |
NUDOCS 8005190367 | |
Download: ML19323C883 (2) | |
Text
.-:. .c,,.. m .. w .::.. .- .
.w. m . , : T u .; . . u~ w . x
. :n . . .,
._. ' 4; .c y, ; . .&^c ' m .y -
..n -
- 8.0 0519 0 s~. ):[-[-
w-...
O. .
. . ~ . . . . 2 .: . . - Q ; : : ; . n : . . +..(., .
y g :.. , - a :.: _ <.. ..z. ; . w i ~ -- .
. c. ~
y , -s ;... . ..:;n r ~.. . .. .> ; : 2,u . w.
- . . .. . . 3 : . .-
.g . . ~ . . " 2e -. . . ' . ... . .g.
..y .
.g . .
., , x . . . . ; . . .v i .. ,
l Int tial Telephone . . - - -
. .. .Date.or -
Report Date: 5/13/80 e '
~ . Occurrence: 5/12/80 Initial Written . .. . .x ~;;.: . ,g ~. ,. . Time of .. ,
Report Date: 13/13/6_0 .. - Occurrence: 11:00 M
~y ;; ..,,.a. .
, .=
.- . . ~. ..
-. . . . . . . . v. .. . . . . . -
. . .. ... . . . , ~
.. .; .:...~............,.. ~ ..r-.- _ . .-0YSTER CREEK m! CLEAR GE!!ERATING STATION .--
'e
. 7 .. ......e,.
..,.l FORKED .RIVEP.. .NEW JERSEY 08731 ;
~..% . . . . . . ~ . .
.. Recortsble 0ccurrence -
Report tfo. 50-219/an-16 D
. '. . ..d. . . . ,
~
IDENTIriCATI9N ~'Yf oliitt en' or th'e' Technicalfspectrications, par.sgesch .'3.1.A.2 .
OF OCCURRENCEL . .(Table 3.1.1-Itet AT2) when pressure swf tch I'3L'O' was found
... defective .and inoperable. .
. z.. .
- ~
~ - --
~~.- 2...- 3;:: ., . . . , . .,T ---
This event is considered to be a "a. cort.1Ste awarrenca ,n da r ined
... . ~ f ; .4 " t M .r.;, 5nI W spar,1etq,giap3, 737 7 .pu
. q,g,2,g,2 , ,; .; ,
COND(TIONS PHOR -
~
- Steady state Power Routine SNtdown TO OCCUR 1tENCE: ' rot Staadby ' ~
Opera tion '
Cold Shutdewn load Channet Ovefnq
~~
X Refueling Shutdown Routine Fewer Operation Rootfne Startup Other (Spec li'y) -
. Operation N ctnr subv i1.i.41 Reector noda switch locked in refuel Cavity flooded . .
DESCRiprinN On Aorf1 70, loRO. while perromin? surveillanca nn nea.rster GF OCC1JPPENCE: Iced re f action sansors, crassure switch Mt."0" c roun<<
detfec tive. Subsequent investigation (5/12/80) revealed that tbt Dressure switch would not have trippad at any pressure dua to a mislocat-d creaittnq tm- within the swf tch hevsing.
9 ? ace *.he piv
- wn 95 :Mmm re 3 -ofu finq r e sca tha switch was rwad and will he replaced with a new switch prior to plant startun.
Surveillance pretadu e records Indicate tM PSL"D" switch perfomed satisfactorfly en 12/70/79 when tha isst surveillance test wu per1 W . Th. rore, the switch is considar=1 to bey = baen t ter-re1
- b*twarn IR/20/79 and 1/5/S0 wnen the 1980 Refuelino Ont.1ga began.
Der r f ag
- h. snevsf11 rce nare crwad en a/2C/30. tha e.vfu rida n t orgssure swite.h PSt,"F)~ t et th= sene trio cMnnel was feund ccerable as well as the two r*1undant sensors, PSL"A" ful f and g>C" in the independent trip channel ,
. . s. ... ,, , ,
. ;.r.z,e. ; ,e- c.~..,m.r w ' q .: ar2.:s",;.
m :-.m . .n. ,..,w. v.. ... m . . e . . . - w .- ., w.: n .
.,.e.
.. . . . . 1 .. . m:x
.-~.,u:
. .,. ..y..
. , ..[
- ,, .;.. ' *j a- . n.
. .. ' .m ,. v. . . . , . _,, ...',
..W . . . . ... _ .
" ~-
- . O'.
- f. .., . .m,,. :x. - :. .. .
... - .' M.m a.,. .. . , . . ' ....,._m . .. .
t . , .
- .r? e Am .;,.
a .: ; .q , '. 9' - p _. .; ; - .^ v. :::... .: ~ .
. .,. .x-: v s.. L .::,. . :. .: 2 . '.- v g..
" ' Repertable Occurren'ce - P' Y ' " ^ O~ ' " "' ' Page 2
~
~
Report fio. 50-219/80-i6-1P ,: -
3'-
s, . .- .;
. .4. ..~.m.,
~ . . . , .
7.. ,
s
. ~. ..
w .. . . a. , . . : . , , . - - .... . - . . . . - , e' . . .
APPARE*fT CAUSE : . 6- Design ~.. Procedure ~ - -
0F OCCURRENCE: .. - 19enufacture '. T7 Unusual Service ;ondIt1on r L.
,w w.---
.- ". ~ Installation / ._ . Inc .Enviromental . .. ' . .
.- - ., .. Cons truc t ion - X - Cannonut F411ure - -- -
- 5. . . ._ . ..f,2 Z _. ~ ~'Operater._ .._. Other (Spectfy) . _ . ._..
~
, ..,.....:.~. ...n.... .. ,, u l
. . . . .,..-.. ....~....~.;.. . . , . . . . .
,. . .:.. - , , . .=i .y '. ' _'.
L .
- M ^
ANALY9IS OF The gener=*.or lead rajection sensors are p--nure swf t:Ns
~ OCCURP.ENCE: . . T '. sensing hydraulic o fi pressure on the turbine accele-atfon
._ relay. There are four sensors; two redumf ant sensors in
_ , . . ., each of two indeP9"dont trip chann.T=.
. .. ,: .. - -- .,.....c. . .. - .
The function of these sensor- 15 to provide an anticipatory
,,, - i,3. ycre s ign=1 wh-n la=4 is caja -*ad fete the gaa**5 *~ . '.a . ._ ;
minf:nize reactor pre?.surintion transients The safety
~
_ ....signiffeince or t% failed sensor is censida cd minfra'
~
w.
~, ~ .since the redundant tefp ctwrmel sensor was nnerable and t.h*
4 indeca=49nt trf o chann=1 was orareSt e. The** Fora, the trip function was not Inst and a scre would have resultet f f a
' 9enerator f ood re,iection had occurred.
. . s .. ,,. .,. ... . .,,... ..
c
. . .,n.. . . , .
CORRECTIVE .TNe defective prassure. switch was disassembled and inspected, ACTIOM: it was found that a plastic linkage that activates the swf tch had fallen out of place and caused the fs11ure.
1
. s 1 1
rMt.tpg c A TA: ' Pean Centrois Im:. "
o-~t Sw f M "ce ! %.che "7M - 15
. ,_.' ~ Serf 31 Number B70 ~ ~ "
Ranoa 50 to 240 05i Sa tUno: 1R0 t',I (Decreasing Traswre)
Peerared by: U ' . - ~ ' * ~ '- - A- nate: s' ' o -
Jim Schoffaid -
Approved by: Date:
Ronala# __daran
. .