ML19338F088: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
 
(StriderTol Bot change)
 
(One intermediate revision by the same user not shown)
Line 18: Line 18:
=Text=
=Text=
{{#Wiki_filter:. , . . ....
{{#Wiki_filter:. , . . ....
    . .;
LICENSEE EVENT REPORT                                                                                        l
LICENSEE EVENT REPORT                                                                                        l
   ,/        ')
   ,/        ')
Line 31: Line 30:
I o 16 I I I
I o 16 I I I
13171 l l
13171 l l
10141 I                                                                                                                                                                    so
10141 I                                                                                                                                                                    so CE              CC E      $LSC E                  COMPONENT C00E                  $48. CE        su    E 19131                            i l ,              .                    . S I Fl@ I E l@i2l A l@i2 l Rl El Li Al Yl Xl@nEPCRT io          ,,                                                        2          i    U.@ lZl@  20
      ,        . ,
CE              CC E      $LSC E                  COMPONENT C00E                  $48. CE        su    E 19131                            i l ,              .                    . S I Fl@ I E l@i2l A l@i2 l Rl El Li Al Yl Xl@nEPCRT io          ,,                                                        2          i    U.@ lZl@  20
* E V'$iC N
* E V'$iC N
_                                        SECU E NTI AL                      CCCU A R ENCE EVENT YEAR                            REPCRT NC.                              CCCE              TYPE                      NC.
_                                        SECU E NTI AL                      CCCU A R ENCE EVENT YEAR                            REPCRT NC.                              CCCE              TYPE                      NC.
Line 44: Line 41:
A4                47 CAUSE CESCRIPTION AND CCRRECTIVy ACTIONS ii ia i [ The cause of the 86B/ VIAS lockout relay was found to be a faulty coil (burned coil)                                                                              l t      i,i,ii therefore, the coil was replaced with a spare and tested satisfactorily for crocer                                                                                    I i, ,7i ; operation.                                                                                                                                                        I I
A4                47 CAUSE CESCRIPTION AND CCRRECTIVy ACTIONS ii ia i [ The cause of the 86B/ VIAS lockout relay was found to be a faulty coil (burned coil)                                                                              l t      i,i,ii therefore, the coil was replaced with a spare and tested satisfactorily for crocer                                                                                    I i, ,7i ; operation.                                                                                                                                                        I I
liiall li14i i
liiall li14i i
* Ventilation Isolation Actuation Sicnal                                                                                                          I 7        3 3                                                                                                                                                          30 STA              *6 POWER                      CTI4ER STATUS              CIS 3    RV                        DISCOVERY OESC%PT:CN IiisIiEl@ l1l010l@l                                        NA                      l    l B j@l                Surveillance Testino                                      l ACTIVITY CC TENT stELEA$1D OF *ELEASE                      AMCUNT CF 4CTWITY                                                    LCCATICN 08 RELEASE li la l l Z l @ LZj@l                              NA                          ,j.              I    NA                                                                    l PER$CNNEL EMPOS' F.S I                        NUV4E4            TV8E        OESCRIPTION l P lfl [ 0l_ 01 0_j @ l Zi @ l                                        iTA
* Ventilation Isolation Actuation Sicnal                                                                                                          I 7        3 3                                                                                                                                                          30 STA              *6 POWER                      CTI4ER STATUS              CIS 3    RV                        DISCOVERY OESC%PT:CN IiisIiEl@ l1l010l@l                                        NA                      l    l B j@l                Surveillance Testino                                      l ACTIVITY CC TENT stELEA$1D OF *ELEASE                      AMCUNT CF 4CTWITY                                                    LCCATICN 08 RELEASE li la l l Z l @ LZj@l                              NA                          ,j.              I    NA                                                                    l PER$CNNEL EMPOS' F.S I                        NUV4E4            TV8E        OESCRIPTION l P lfl [ 0l_ 01 0_j @ l Zi @ l                                        iTA l
* l
        '        ' '                                    ''
l                        nasC,.Nd',Nav'4 E s mLvsEs            DESCAipnCN h li i g l 010 l O l@l                              NA 30 l
l                        nasC,.Nd',Nav'4 E s mLvsEs            DESCAipnCN h li i g l 010 l O l@l                              NA 30 l
l      7        5 )              it      12 l
l      7        5 )              it      12 l
W[EC#C"*'E.0$eNO
W[EC#C"*'E.0$eNO
: esc      T                ''"" h
: esc      T                ''"" h l i i n (Zj@l                      NA 30 l
'
l i i n (Zj@l                      NA 30 l
7        4 4          to
7        4 4          to
                     ,sscl'''it"                                                                                                                          "ac use c~'~
                     ,sscl'''it"                                                                                                                          "ac use c~'~
Line 60: Line 53:
7                    10                                                                        K NAME CF PAESARER andy iMueller              A_'                        PWCNE:          402-426 20l1                        i,
7                    10                                                                        K NAME CF PAESARER andy iMueller              A_'                        PWCNE:          402-426 20l1                        i,


        .-  .      . _ .                .  . . - . .            . . _ . . -      - _ - - -  _
    '
  .
l l    .
l l    .
LER 80-022 Omaha Public Power District Fort Calhoun Station Unit No.1 Docket No. 0S000285 ATTACHMENT NO. 1
LER 80-022 Omaha Public Power District Fort Calhoun Station Unit No.1 Docket No. 0S000285 ATTACHMENT NO. 1
_ Safety Analysis l              The Fort Calhoun Station Unit No.1 Engineered Safety Feature
_ Safety Analysis l              The Fort Calhoun Station Unit No.1 Engineered Safety Feature System is so designed that no single failure can prevent the per-formance of a safety function, if required.
<
System is so designed that no single failure can prevent the per-formance of a safety function, if required.
During the performance of ST-ESF-2, F.2, the 86B/ VIAS lockout
During the performance of ST-ESF-2, F.2, the 86B/ VIAS lockout
)
)
'
failed to actuate due to a burnt coil. However, at the time of this occurrence the 86A/ VIAS ("A" Channei) and the 86Al/ VIAS ("B" Channel) relays were operable. In addition, the 86Bl/ VIAS derived signal lockout
failed to actuate due to a burnt coil. However, at the time of this occurrence the 86A/ VIAS ("A" Channei) and the 86Al/ VIAS ("B" Channel) relays were operable. In addition, the 86Bl/ VIAS derived signal lockout
("A" Channel) was also operable since the VIAS signal is actuated by a
("A" Channel) was also operable since the VIAS signal is actuated by a
:          CRHS, a CSAS or a SIAS signal and is not a function of the 86B/ VIAS lock-l out. Therefore, if required those three signals mentioned above (86A/ VIAS, 86Al/ VIAS and 86Bl/ VIAS) would have actuated all safety equipment necessary to mitigate the consequences of an accident if re-quired.
:          CRHS, a CSAS or a SIAS signal and is not a function of the 86B/ VIAS lock-l out. Therefore, if required those three signals mentioned above (86A/ VIAS, 86Al/ VIAS and 86Bl/ VIAS) would have actuated all safety equipment necessary to mitigate the consequences of an accident if re-quired.
                                                                                              '
.
s s
s s
                                           \
                                           \
i
i
                                                          . , , -              ,_


_ _. _ _ - _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
LER 80-022 Omaha Public Power District Fort Calhoun Station Unit No. 1 Docxet No. 05000285 ATTACHMENT NO. 2 Corrective Action The failure of the 86B/'/IAS relay was found to be due to a faulty coil. The coil was replaced with a spare per M.0. 7065. Subsequently, the relay was tested for proper operation per ST-ESF-2, F.2 and found to operate as designed.
                                              . . .
  .'
                                                                                                                            . :
LER 80-022 Omaha Public Power District
-
Fort Calhoun Station Unit No. 1 Docxet No. 05000285 ATTACHMENT NO. 2 Corrective Action The failure of the 86B/'/IAS relay was found to be due to a faulty coil. The coil was replaced with a spare per M.0. 7065. Subsequently, the relay was tested for proper operation per ST-ESF-2, F.2 and found to operate as designed.
,
Continued surveillance will ensure prompt correction of any future problems of this type should they occur.
Continued surveillance will ensure prompt correction of any future problems of this type should they occur.
      .
'
                                         \
                                         \
                                         'h,\
                                         'h,\
4#
4#
          . - -                      _
_ . . --_ -


                                            - - - - - - . . .
                                                            -      -      --.    . . _ .
,
      #
                                                                        .
i-                                                                                      .
i-                                                                                      .
!
.
LER 80-022 Omaha Public Power District Fort Calhoun Station Unit flo.1
LER 80-022 Omaha Public Power District Fort Calhoun Station Unit flo.1
,      Docket tio. 05000285 i                                        +
,      Docket tio. 05000285 i                                        +
                                                                                              ,
ATTACHMEllT fl0. 3 Failure Data Previous related lockout relays failures were reported per
ATTACHMEllT fl0. 3
.
Failure Data
;
Previous related lockout relays failures were reported per
* LER 79-22, LER 77-26, LER 77-22, LER 78-04, Abnormal Occurrence 75-3 and Abnormal Occurrence 74-18.
* LER 79-22, LER 77-26, LER 77-22, LER 78-04, Abnormal Occurrence 75-3 and Abnormal Occurrence 74-18.
.
l l,
l l,
4
4 I
.
i 1
'
l l
I
                                                                                              '
i
* 1 l
l
;
(
(
1
1
'
'
                                           \xs c'
                                           \xs c'
a
a
     .  .,          .        . . _  _ .                .. ..        -      --          -}}
     .  .,          .        . . _  _ .                .. ..        -      --          -}}

Latest revision as of 10:45, 18 February 2020

LER 80-022/03L-0:on 800911,during Safety Injection Actuation Signal Surveillance test,86B/VIAS Lockout Failed to Trip. Caused by Burned Coil.Coil Replaced W/Spare & Tested Satisfactorily for Proper Operation
ML19338F088
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 09/11/1980
From: Mueller R
OMAHA PUBLIC POWER DISTRICT
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19338F082 List:
References
LER-80-022-03L, LER-80-22-3L, NUDOCS 8010070511
Download: ML19338F088 (4)
v • d • e


Text

. , . . ....

LICENSEE EVENT REPORT l

,/ ')

L/

(PLEASE P41NT OR TYPE ALL REQUIRED INFORMATION)

CoNTmot stocie {

i l l l 1 l lh e

f7Tile la N I vCENsEE E l FCaos l C l S I 11@l01010]Ol01010101010101@la%1Illilll@l I l i i i4 a uCENst w v6En a 2. uCENst Yvre. ao sicaT$4@

Covt IoIiI Z',"C! l L l@l 01 510 ! 0 l 0 l 2 l 8 I 5 l@l 0 I 9 l 1 I l ! 810 78l@l 40 l 9#!8CRT l 1 ! CATE 1 I R I n$0 l@

i 4 60 Si GCCKET % veEm 68 69 EV ENT Q ATE EVENT DESCRIPTICN AND PA08ABLE CONSECUENCES h

! o 121 l During cerformance of ST-ESF-2. F.2 (B Safety Iniec-ion Actuation Signal % voiltancol ioi3i i Test) the 868/ VIAS lockout failed to trio due to a burnt coil. Durina the time of I l o l 41 l the incident, the 86A/ VIAS, the 86Al/ VIAS and the 86Bl/ VIAS wera enerabia and ivail 1 i o i,i i able to initiate safeguards ecuioment should the need arise~ l I

I o 16 I I I

13171 l l

10141 I so CE CC E $LSC E COMPONENT C00E $48. CE su E 19131 i l , . . S I Fl@ I E l@i2l A l@i2 l Rl El Li Al Yl Xl@nEPCRT io ,, 2 i U.@ lZl@ 20

  • E V'$iC N

_ SECU E NTI AL CCCU A R ENCE EVENT YEAR REPCRT NC. CCCE TYPE NC.

LE2 AC O gg _ 21 18101 22 1-1 23 I of 21 21 24 26 1/l 27

[0_L3_]

23 23 Ill 30

[-J 31 10 l 32 TA N AC C CN PL NT VET *CORS 38 8 8CA 5. SUP' LIE VA LFA RER lAl@lzl@ IZl@

JJ 44 33 I;6Z l@ 3 10 10 10 10 I 40 INl@

41 IN 42 l@ l43A l@ lGl01810l@

A4 47 CAUSE CESCRIPTION AND CCRRECTIVy ACTIONS ii ia i [ The cause of the 86B/ VIAS lockout relay was found to be a faulty coil (burned coil) l t i,i,ii therefore, the coil was replaced with a spare and tested satisfactorily for crocer I i, ,7i ; operation. I I

liiall li14i i

  • Ventilation Isolation Actuation Sicnal I 7 3 3 30 STA *6 POWER CTI4ER STATUS CIS 3 RV DISCOVERY OESC%PT:CN IiisIiEl@ l1l010l@l NA l l B j@l Surveillance Testino l ACTIVITY CC TENT stELEA$1D OF *ELEASE AMCUNT CF 4CTWITY LCCATICN 08 RELEASE li la l l Z l @ LZj@l NA ,j. I NA l PER$CNNEL EMPOS' F.S I NUV4E4 TV8E OESCRIPTION l P lfl [ 0l_ 01 0_j @ l Zi @ l iTA l

l nasC,.Nd',Nav'4 E s mLvsEs DESCAipnCN h li i g l 010 l O l@l NA 30 l

l 7 5 ) it 12 l

W[EC#C"*'E.0$eNO

esc T "" h l i i n (Zj@l NA 30 l

7 4 4 to

,ssclit" "ac use c~'~

n iu3 iZ fel

,T,0N @

NA 802oo7op/ h l IIIii!IIIIIIII 3 64 69 30 ;

7 10 K NAME CF PAESARER andy iMueller A_' PWCNE: 402-426 20l1 i,

l l .

LER 80-022 Omaha Public Power District Fort Calhoun Station Unit No.1 Docket No. 0S000285 ATTACHMENT NO. 1

_ Safety Analysis l The Fort Calhoun Station Unit No.1 Engineered Safety Feature System is so designed that no single failure can prevent the per-formance of a safety function, if required.

During the performance of ST-ESF-2, F.2, the 86B/ VIAS lockout

)

failed to actuate due to a burnt coil. However, at the time of this occurrence the 86A/ VIAS ("A" Channei) and the 86Al/ VIAS ("B" Channel) relays were operable. In addition, the 86Bl/ VIAS derived signal lockout

("A" Channel) was also operable since the VIAS signal is actuated by a

CRHS, a CSAS or a SIAS signal and is not a function of the 86B/ VIAS lock-l out. Therefore, if required those three signals mentioned above (86A/ VIAS, 86Al/ VIAS and 86Bl/ VIAS) would have actuated all safety equipment necessary to mitigate the consequences of an accident if re-quired.

s s

\

i

LER 80-022 Omaha Public Power District Fort Calhoun Station Unit No. 1 Docxet No. 05000285 ATTACHMENT NO. 2 Corrective Action The failure of the 86B/'/IAS relay was found to be due to a faulty coil. The coil was replaced with a spare per M.0. 7065. Subsequently, the relay was tested for proper operation per ST-ESF-2, F.2 and found to operate as designed.

Continued surveillance will ensure prompt correction of any future problems of this type should they occur.

\

'h,\

4#

i- .

LER 80-022 Omaha Public Power District Fort Calhoun Station Unit flo.1

, Docket tio. 05000285 i +

ATTACHMEllT fl0. 3 Failure Data Previous related lockout relays failures were reported per

  • LER 79-22, LER 77-26, LER 77-22, LER 78-04, Abnormal Occurrence 75-3 and Abnormal Occurrence 74-18.

l l,

4 I

i 1

l l

(

1

\xs c'

a

. ., . . . _ _ . .. .. - -- -

Retrieved from "https://kanterella.com/w/index.php?title=ML19338F088&oldid=2482943"