ML18139A529: Difference between revisions

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{{#Wiki_filter:---------\!Rt: FORM j5;,; (i-77} e LICENSEE EVENT REPORT .S. NUCL:AR R:'.:t.JL,HORY COMMISSION CONTi'iCL SLOCK: (PL:.ASE PRINT CR TYPE ALL REQUIRED '',FORMATION) Iv IA ls IP Isl 210)1 olo-1-\olo_l~l.~_J_o I-lo \o_l014 J 1J_.1_1_1J_1_l01
{{#Wiki_filter:---------
___ 1 __ 10 8 9 uC:Nsc: CODE ~.: ~5 LIC:NSc. NU*'-*=C::"", .:~ 26 LiC:~.S= ''T'?:. .:.-.J =1 .__, ~a CON'T RE?CRT I T I(';\ I I 5 SOU:"CE L.k.J\,.V 0 I o I o I o I 2 I s I 1 IQ) I o I s I 2 I 2 I s I o !G) I o I 9 I 1 ! 9 I s I o 1 G) S; EVENT DAI: /4 75 .~E.?:~7 ;:.;.. -;-: SO ' 8 60 5; DOCKET .,L.;MSE?, 6S EVENT DESCRIPTION AND ?R08ASU: CONSEG\.JENCES@  
\!Rt: FORM j5;,;
!With the Unit at power, TV-SS-206B would not remain closed when actuated !Ii]] from the control room. Isolation of the sample system was available by another valve, ~* I therefore the health and safety of the general public were not affected.
(i-77}
This event C§:II] ~s contrary to Technical Spe,cification 3 .8. A. ( 1) and report ab le per Technical filD cation 6.6.2.b.(l)
e       LICENSEE EVENT REPORT
[Iill 8 9 [I:ill 7 S SYSTEM CODE IP IB I@ 9 10 C\ U,R :;o c*VENT YE;>.R \:.!.) REP<?~' I 8 I O I NUMo::R 21 22 ACTION FUTURE TAK::N ACTION
                                                                                                                                                  . S . NUCL:AR R:'.:t.JL,HORY COMMISSION CONTi'iCL SLOCK:                                                                                     (PL:.ASE PRINT CR TYPE ALL REQUIRED '',FORMATION)
* Ei=FECT ON PL.O.NT CAUSE COOE CAL'SE SU6CODE CCMPCNENT CODE COMP. v;...._*,e SU6CD0E s* ,---.-..-u]@ w@ v\A IL Iv IE Ix ,e w@ fnf'@ 11 12 13 L=.J 23 SHUTDOWN METHOD SEQUENTIAL RE?CRT NO. I o 11 I 9 I 24 26 HOURS ;s OCCURRENC:
~
CODE \/j Io I 3 / 2i 28 29 19 F.Ei='ORT TY?: LJ,J JO 20 NPRD-4 FCRM ~us. PRIME cot-.-:=.
8 Iv IA ls IP Isl 210)1 olo-1-\olo_l~l.~_J_o I-lo \o_l014 9         uC:Nsc: CODE                         ~.:       ~5                       LIC:NSc. NU*'-*=C::"",                 .:~     26 J  1J_.1_1_1J_1_l01___ 1_ _
SU?PLIE:'.
LiC:~.S=     ''T'?:.   .:.-.J   =1 .__,
~E\/ISION
10
'10. w w@L.Ll@ ~@ ~ Io 10 10 :i:i ~4 -:is 36 :i 1 {22) ATiACHMENT ll) SUBMITTi:D I I LU@) "-0 41 u ~@ CAUSE: 0::SCRl?TlON AND CORRECTIVE ACTIONS @ 42 :.J [ The initial action taken following the malfunction of the valve position indicator
                                                                                                                                                                                                      ~a CON'T
[CO] I was to close the isolation valve down'stream of the trip valve. The isolation valve [LI}] remained closed until the position limit switch to TV-SS-206B was adjusted.
~                  RE?CRT SOU:"CE I T   I(';\
DE] a 9 FACILITY STATUS , % POWEF, OTHER S7ATUS L!J@ IO I 6 IO l@l,___NA
L.k.J\,.V 0 I         I5 I          o   I o I o I 2 I s I 1 IQ) IS;o I sEVENT          I 2 I 2 I s I o !G) I o               I 9 I 1 ! 9 I s I o 1G)
____ --,1 METHOD CF A DISCOVE? . .,. DISCOVERY oesc:= :-;-;cN 0 ~@I~ ___ O_p_e_r_a_t_o_r_s_-_o_b_s_e_r_v_a_t_i_o_n
'      8                          60              5;                     DOCKET .,L.;MSE?,            6S                          DAI:             /4       75       .~E.?:~7 ;:.;.. -;-:       SO EVENT DESCRIPTION AND ?R08ASU: CONSEG\.JENCES@
__ _ 8 9 10 12 11 ACTIVITY CONTENT RELEASED c;: =tELEASE AMOUNT OF ACTIVITY w@ u.lL....I
            !With the Unit at power, TV-SS-206B would not remain closed when actuated
__ --=..:;NA~-----l
!Ii]]         from the control room.                                           Isolation of the sample system was available by another valve,
; s s : a , , 45 46 44 NA _LOC..>.TION CF ;:;EL=.~.o::  
~
@ 80 so 80 [QJ] 0:(~~~~8~:Ll@(~;~@
* I therefore                         the health and safety of the general public were not affected.                                                                                 This event C&sect;:II] ~s contrary to Technical Spe,cification 3 .8. A. ( 1) and report ab le per Technical Specif-filD         cation 6.6.2.b.(l)
OESCRIPTICN
[Iill 8 9                                                                                                                                                                                                 80 SYSTEM                     CAUSE            CAL'SE                                                            COMP.              v;...._*,e s* ,---.-..-
(&sect;) a 9 11 12 ::-:3:--------------------------------------~;o NA ?ERSC/',;,''EL INJURIES Q NUM6E;:> DESCRIPTICN 0 [L] I o I o I o I@ 3 9 11 ~12::------------------------------------------__Jao NA LOSS OF C? '.:AMAGE TO FACILITY G TYPE ::~CRIPTION
                                                                                                                                            ,e CODE                        COOE          SU6CODE                    CCMPCNENT CODE                        SU6CD0E
\:::.::) ~~@:I a s ~~:----------------------------------------------....J so NA PUS~IC:"'"Y C\ *o ISSUEDQ ")E5CRIPTICN CII2J LJ!Jc I B 9 *: s 009240 'f 7' ! I I I l i I I I I I NA == 5; ao ,, *;..:.),'.E
[I:ill 7      S IP 9
_oi= PP. ;::;,_.i.::, E::, __ J_._L_. _w_i_l_s_o_n
IB 10I@ u]@              11 w@
__________
12              13 v\A        IL Iv IE Ix
_ (804) 357-3184 ?WQ~I::: --------------
                                                                                                                                            ;s w@ fnf'@
. . .. ATTACHMENT 1 SURRY POWER DOCK.ET NO: REPORT NO: EVENT DATE: __ -_-_-_-__ --e STATION, UNIT 2 50-:-281 80-019-03L-O 08-22-80 TITLE OF EVENT: TRIP VALVE Tv~ss-206B INOPERABLE
19                  20 SEQUENTIAL                              OCCURRENC:              F.Ei='ORT                          ~E\/ISION C\        U,R :;o c*VENT YE;>.R                                                RE?CRT NO.                                 CODE                  TY?:                               '10.
: 1. Des*cription of Event: With the Unit at power, TV-SS-206B.
            \:.!.) REP<?~'
would not remain' closed when actuated from the control room. This event is contrary to Technical Specification 3.8.A.l. and_reportable per Technical Specification 6.6.2.b.{1)
NUMo::R I I I 21 8 O 22 L=.J 23 Io 24 11  I9 I 26
: 2. Probable Consequences of Event: Assuming total inoperability of the valve, the health and safety of the general public would not have been affected since automatic sample system isolation was available by series valve TV-,SS-206A located side of containment.
                                                                                                                    \/j 2i Io 28 I  3 /
: 3. Cause of Event: The failure_of TV-SS-206B  
29 LJ,J JO w
.. to remain ciosed was due to a misadjusted limit switch. 4. Innnediate Corrective Action: The immediate corrective action was to -isolate TV-SS-206B, by a manual val \re down stream. 5. Scheduled Corrective Action: The-position limit switch to TV-SS-206B was readjusted.
ACTION      FUTURE
* Ei=FECT                    SHUTDOWN                            {22)     ATiACHMENT           NPRD-4          PRIME cot-.-:=.
TAK::N      ACTION                  ON PL.O.NT                    METHOD                  HOURS        ll)      SUBMITTi:D        FCRM ~us.          SU?PLIE:'.
w@L.Ll@
:i:i          ~4                -
                                                    ~@
:is
                                                                                ~
36 Io
:i 1 10 10 I I LU@)
                                                                                                                        "-0     41 u
42
                                                                                                                                                                      ~@
:.J CAUSE: 0::SCRl?TlON AND CORRECTIVE ACTIONS                                          @
[ The initial action taken following the malfunction of the valve position indicator
[CO] I was          to close the isolation valve down'stream of the trip valve.                                                                               The isolation valve
[LI}]          remained closed until the position limit switch to TV-SS-206B was adjusted.
DE]
a   9                                                                                                                                                                                              so FACILITY                                                                                ~      METHOD CF                                                                        A STATUS ,                   % POWEF,                                 OTHER S7ATUS      ~      DISCOVE?. .,.                               DISCOVERY      oesc:= :-;-;cN        0
  ~        L!J@ IO I 6 IO                              l@l,___NA              _ _ _ _--,1                    ~@I~___O_p_e_r_a_t_o_r_s_-_o_b_s_e_r_v_a_t_i_o_n_ __
8   9                  10                    12          11                                44      45          46                                                                              80 ACTIVITY        CONTENT                                                              ~
RELEASED      c;:    =tELEASE                            AMOUNT OF ACTIVITY                                                              _LOC..>.TION CF ;:;EL=.~.o::         @
  ~        w@ :u.lL....I                          __--=..:;NA~-----l                                                          NA
  ;    s s                      a              ,,
[QJ]
a    9 0:(~~~~8~:Ll@(~;~@
11        12 OESCRIPTICN        (&sect;)            NA
::-:3:--------------------------------------~;o
                  ?ERSC/',;,''EL INJURIES                          Q NUM6E;:>                  DESCRIPTICN            0
[L]3 I9 o I o I o11I@ ~ 1 2 : : - - - - - - - - - - - -NA- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ _ J a o LOSS OF C? '.:AMAGE TO FACILITY                          G TYPE          ::~CRIPTION                                \:::.::)
~~@:I a s              ~~:----------------------------------------------....J NA so PUS~IC:"'"Y                  C\
                                                ~
7' ISSUEDQ ")E5CRIPTICN                                                                                                                                                                                *o CII2J LJ!Jc I                                                                                      NA                                                                                  ! I I I l i I I I I  I~
B  9            *:                     s 009240 'f                                                                                                        ==      5; (804) 357-3184 ao ,,
                          *;..:.),'.E  _oi=  PP. ;::;,_.i.::, E::, _ _      J_._L_._w_i_l_s_o_n___________
                                                                                                                                                  ?WQ~I::: - - - - - - - - - - - - - -
 
. . .
e ATTACHMENT 1 SURRY POWER STATION, UNIT 2 DOCK.ET NO: 50-:-281 REPORT NO: 80-019-03L-O EVENT DATE: 08-22-80 TITLE OF EVENT:           TRIP VALVE Tv~ss-206B INOPERABLE
: 1. Des*cription of Event:
With the Unit at power, TV-SS-206B. would not remain' closed when actuated from the control room. This event is contrary to Technical Specification 3.8.A.l. and_reportable per Technical Specification 6.6.2.b.{1)
: 2. Probable Consequences of Event:
Assuming total inoperability of the valve, the health and safety of the general public would not have been affected since automatic sample system isolation was available by series valve TV-,SS-206A located in-side of containment.
: 3. Cause of Event:
The failure_of TV-SS-206B .. to remain ciosed was due to a misadjusted limit switch.
: 4. Innnediate Corrective Action:
The immediate corrective action was to -isolate TV-SS-206B, by a manual val\re down stream.
: 5. Scheduled Corrective Action:
The-position limit switch to TV-SS-206B was readjusted.
: 6. Action Taken to Prevent Recurrence:
: 6. Action Taken to Prevent Recurrence:
None 7. Generic Implications:
None
: 7. Generic Implications:
None}}
None}}

Revision as of 03:30, 21 October 2019

LER 80-019/03L-0:on 800822,during Operation Trip Valve TV- SS-206B Would Not Stay Closed When Actuated from Control Room.Caused by Misadjusted Limit Switch.Valve Isolated & Position Limit Switch Readjusted
ML18139A529
Person / Time
Site: Surry Dominion icon.png
Issue date: 09/19/1980
From: Joshua Wilson
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A527 List:
References
LER-80-019-03L-03, LER-80-19-3L-3, NUDOCS 8009240471
Download: ML18139A529 (2)


Text


\!Rt: FORM j5;,;

(i-77}

e LICENSEE EVENT REPORT

. S . NUCL:AR R:'.:t.JL,HORY COMMISSION CONTi'iCL SLOCK: (PL:.ASE PRINT CR TYPE ALL REQUIRED ,FORMATION)

~

8 Iv IA ls IP Isl 210)1 olo-1-\olo_l~l.~_J_o I-lo \o_l014 9 uC:Nsc: CODE ~.: ~5 LIC:NSc. NU*'-*=C::"", .:~ 26 J 1J_.1_1_1J_1_l01___ 1_ _

LiC:~.S= T'?:. .:.-.J =1 .__,

10

~a CON'T

~ RE?CRT SOU:"CE I T I(';\

L.k.J\,.V 0 I I5 I o I o I o I 2 I s I 1 IQ) IS;o I sEVENT I 2 I 2 I s I o !G) I o I 9 I 1 ! 9 I s I o 1G)

' 8 60 5; DOCKET .,L.;MSE?, 6S DAI: /4 75 .~E.?:~7 ;:.;.. -;-: SO EVENT DESCRIPTION AND ?R08ASU: CONSEG\.JENCES@

!With the Unit at power, TV-SS-206B would not remain closed when actuated

!Ii]] from the control room. Isolation of the sample system was available by another valve,

~

  • I therefore the health and safety of the general public were not affected. This event C§:II] ~s contrary to Technical Spe,cification 3 .8. A. ( 1) and report ab le per Technical Specif-filD cation 6.6.2.b.(l)

[Iill 8 9 80 SYSTEM CAUSE CAL'SE COMP. v;...._*,e s* ,---.-..-

,e CODE COOE SU6CODE CCMPCNENT CODE SU6CD0E

[I:ill 7 S IP 9

IB 10I@ u]@ 11 w@

12 13 v\A IL Iv IE Ix

s w@ fnf'@

19 20 SEQUENTIAL OCCURRENC: F.Ei='ORT ~E\/ISION C\ U,R :;o c*VENT YE;>.R RE?CRT NO. CODE TY?: '10.

\:.!.) REP<?~'

NUMo::R I I I 21 8 O 22 L=.J 23 Io 24 11 I9 I 26

\/j 2i Io 28 I 3 /

29 LJ,J JO w

ACTION FUTURE

  • Ei=FECT SHUTDOWN {22) ATiACHMENT NPRD-4 PRIME cot-.-:=.

TAK::N ACTION ON PL.O.NT METHOD HOURS ll) SUBMITTi:D FCRM ~us. SU?PLIE:'.

w@L.Ll@

i:i ~4 -

~@

is

~

36 Io

i 1 10 10 I I LU@)

"-0 41 u

42

~@

.J CAUSE: 0::SCRl?TlON AND CORRECTIVE ACTIONS @

[ The initial action taken following the malfunction of the valve position indicator

[CO] I was to close the isolation valve down'stream of the trip valve. The isolation valve

[LI}] remained closed until the position limit switch to TV-SS-206B was adjusted.

DE]

a 9 so FACILITY ~ METHOD CF A STATUS ,  % POWEF, OTHER S7ATUS ~ DISCOVE?. .,. DISCOVERY oesc:= :-;-;cN 0

~ L!J@ IO I 6 IO l@l,___NA _ _ _ _--,1 ~@I~___O_p_e_r_a_t_o_r_s_-_o_b_s_e_r_v_a_t_i_o_n_ __

8 9 10 12 11 44 45 46 80 ACTIVITY CONTENT ~

RELEASED c;: =tELEASE AMOUNT OF ACTIVITY _LOC..>.TION CF ;:;EL=.~.o:: @

~ w@ :u.lL....I __--=..:;NA~-----l NA

s s a ,,

[QJ]

a 9 0:(~~~~8~:Ll@(~;~@

11 12 OESCRIPTICN (§) NA

-:3:--------------------------------------~;o

?ERSC/',;,EL INJURIES Q NUM6E;:> DESCRIPTICN 0

[L]3 I9 o I o I o11I@ ~ 1 2 : : - - - - - - - - - - - -NA- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ _ J a o LOSS OF C? '.:AMAGE TO FACILITY G TYPE  ::~CRIPTION \:::.::)

~~@:I a s ~~:----------------------------------------------....J NA so PUS~IC:"'"Y C\

~

7' ISSUEDQ ")E5CRIPTICN *o CII2J LJ!Jc I NA  ! I I I l i I I I I I~

B 9 *: s 009240 'f == 5; (804) 357-3184 ao ,,

  • ..
    .),'.E _oi= PP. ;::;,_.i.::, E::, _ _ J_._L_._w_i_l_s_o_n___________

?WQ~I::: - - - - - - - - - - - - - -

. . .

e ATTACHMENT 1 SURRY POWER STATION, UNIT 2 DOCK.ET NO: 50-:-281 REPORT NO: 80-019-03L-O EVENT DATE: 08-22-80 TITLE OF EVENT: TRIP VALVE Tv~ss-206B INOPERABLE

1. Des*cription of Event:

With the Unit at power, TV-SS-206B. would not remain' closed when actuated from the control room. This event is contrary to Technical Specification 3.8.A.l. and_reportable per Technical Specification 6.6.2.b.{1)

2. Probable Consequences of Event:

Assuming total inoperability of the valve, the health and safety of the general public would not have been affected since automatic sample system isolation was available by series valve TV-,SS-206A located in-side of containment.

3. Cause of Event:

The failure_of TV-SS-206B .. to remain ciosed was due to a misadjusted limit switch.

4. Innnediate Corrective Action:

The immediate corrective action was to -isolate TV-SS-206B, by a manual val\re down stream.

5. Scheduled Corrective Action:

The-position limit switch to TV-SS-206B was readjusted.

6. Action Taken to Prevent Recurrence:

None

7. Generic Implications:

None