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| issue date = 03/16/1981
| issue date = 03/16/1981
| title = LER 81-020/03L-0:on 810223,during Full power,RM-CC-106 Alert & High Alarm Lights Energized W/O Initiating Required Automatic Action.Caused by Failed Card in Alarm Circuit.Card Replaced & Tested
| title = LER 81-020/03L-0:on 810223,during Full power,RM-CC-106 Alert & High Alarm Lights Energized W/O Initiating Required Automatic Action.Caused by Failed Card in Alarm Circuit.Card Replaced & Tested
| author name = WILSON J L
| author name = Wilson J
| author affiliation = VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
| author affiliation = VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
| addressee name =  
| addressee name =  
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:~~I\JAC~ORM 0 3&&=---. U.S. NUCLEAR REGULATORY COMMISSION-,J [7-771*1
{{#Wiki_filter:~~I\JAC~ORM 3&&=- - - . ~
* e LICENSEE EVENT REPORT --CONTROi. a1.0CK; 1 1 -r 1 10 1 6 (PLEASE. PRINT OR TYPE AL.I. REQUIRED .1NFOAMAT10NI-
e                                                                                                    --
-Cili:J'Jv I A:I s*1 PJ s12 IG)I 01 01-1 01 O!* 01 01 O! -I 010 101*4 11111111101 I I© ; ii 9 L.ICENSEE*CCDE 14-. 15 UCENSE NUMBER .. _ 25 . a UCENSE, TYl'E ;JO 57 _CAT 58 CON.,-[Im -:~~~-LI©I 01 sro1 0-1 or 21 s1 1 1Q)l 0 1 2 1 2 1 3 1 *8 l 1 1@1 °1 3! 11-6 1-8 111(!)-7 S.-SO* -61 . COCKET NUMBER
U.S. NUCLEAR REGULATORY COMMISSION-0
* 68 S9 EVENT CATE 74 REPORT CATE 80 ::VENT OESCRIPTlON ANO PROBASL.E CONSEQUENCES.@)
[7-771* 1             ~
_ !]:DJ jWith Unit Uo. 2 at 100% power,. the RM-CC-106 "Alert" and "high" alarm lights energized I !without initiating the required automatic action *. This is contrary to T.S. 3-1, Table I_ C[I~:L13**7..;.5 and is: reportable per T.S. 6.6.2.b(4)*.
* LICENSEE EVENT REPORT
Since the CC He~d-Tank Vent* is also [[IIJ rmonitored by the Process Vent System radiation.
  ,J CONTROi. a1.0CK;               1 1
monito.r
1- r 1 10                       6 (PLEASE. PRINT OR TYPE AL.I. REQUIRED .1NFOAMAT10NI- -
* and the vent va:lve was C§J1J !immediately closed, the health and safety of the public were not affected.
Cili:J'Jv I A:I s*1 PJ s12
cmJ L I _____ _ iII!l 1.-______ _.; ___________________
      ;        ii    9            L.ICENSEE*CCDE IG)I 01 01-1 01 O!* 01 01 O! -I 010 101*4 14-   . 15                                 UCENSE NUMBER                         .. _             25 .           a 11111111101 I I© UCENSE, TYl'E         ;JO           57 _CAT 58 CON.,-
_.;. _________ 7 8 9 SO SYSi'eM CODE CAUSE . -CAUSE CCIM,., VALVE I Ml ci@ 9.. 10 Ifill. , a. CODE . SUBCCDI! . CQM..ONENT CQDE SUSCODE _SUSCCDE-LI  W@lr!N!sjTjRjuj@
[Im - :~~~-LI©I 01 sro1 7        S.-                        SO* -          61            .
L.£1@ u.I 11 12 13 18, -19 . 20 . SEQUliNTIAL, OCC1JAAENC!*
0-1 or 21 s1 1 1Q)l 0 1 2 1 2 13 1*8 l 11@1 °1 3! 11- 61-8 111(!)-
* REPORT I.ER/RO' LEVl!NT YeAAc REPORT NO.
COCKET NUMBER
* CODE*
* 68       S9           EVENT CATE                             74           ~        REPORT CATE                         80
* TY"!  Re::~ f s 11 I > . 1--1 I O :I 2 I O r J ._...., IO j 3 l J.Ll 1.::1 NU . 21 22 2:i 24 26 27 . 2S 29 30 31 ACTION 'FIJ"MJRE.
::VENT OESCRIPTlON ANO PROBASL.E CONSEQUENCES.@)                                                                                   _
EFnCT
      !]:DJ jWith Unit Uo. 2 at 100% power,. the RM-CC-106 "Alert" and "high" alarm lights energized I
* SHUTDOWN -t.:::\ AffACHMENT
      ~ !without initiating the required automatic action *. This is contrary to T.S.                                                                                                                                                           3-1,       Table           I_
* N"RQ.4-PRll\.iE'CD~;-
C[I~:L13**7..;.5               and is: reportable per T.S. 6.6.2.b(4)*.                                                                       Since the CC He~d-Tank Vent* is also
((IIJ           rmonitored by the                         Process               Vent System radiation. monito.r
* and the vent va:lve was L
C§J1J !immediately closed, the health and safety of the public were not affected.                                                                                                                                                                                     I ______
cmJ iII!l 1.-_ _ _ _ _ __.;_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __.;._ _ _ _ _ _ _ _ _                                                                                                                                                                                  ~
7         8 9                                                                                                                                                                                                                                                       SO SYSi'eM                 CAUSE .           -CAUSE                                                                                               CCIM,.,             VALVE CODE                   CODE        . SUBCCDI!                     .           CQM..ONENT CQDE                                         SUSCODE             _SUSCCDE-Ifill.
        ,        a.
I Ml ci@
9..        10 LI  12W@lr!N!sjTjRjuj@
11                                              13                                            18, L.£1@
                                                                                                                                                                                                    -19        .
u.I 20
                                                                                            . SEQUliNTIAL,                                                 OCC1JAAENC!*
* REPORT                                   REVISION, Re::~
NU I.ER/RO' LEVl!NT YeAAc fs 21 11 I > . 1--1 22              2:i                24 REPORT NO.
* I O:I 2 I O26r                            J._....,
27 .
IO 2S CODE*
j 3 29l
* TY"!
J.Ll 30 1.::1 31 NQ.;
LQJ_
32 .
ACTION 'FIJ"MJRE.                     EFnCT
* SHUTDOWN                             -                 t.:::\     AffACHMENT
* N"RQ.4-             PRll\.iE'CD~;-                       COMPONEN'l"'
HOURS ~
TAKEN*
TAKEN*
* ACTION_-__ ON "I.ANT . METHOD _ HOURS SUBMITTED ll'ORMliUS.
* ACTION_-
SU""UER* w@w w@ .-__ w@> -_ _1.0 1 a , 0-1 o , _. L!J@* L!l> *w@: l3 :14 35 . JS.. 37 40 41 '3--CAUSE CESCAIPTlON AND CORRECTIVE ACTIONS @ _ . REVISION, NQ.; LQJ_ 32 . COMPONEN'l"'
w@w l3              :14
MANUFACTURER  
_ _ON "I.ANT w@ .-. __ JS..
'~ I V 11 11 I 5 I 44 ,, o:I[J _ !-The cause was due to a failed -card -in the
35 w@> -__1.0 1a , 0-1 o , _. L!J@*
* ala'I"Ill  
METHOD _
*circuit.
37                                  40 SUBMITTED 41 ll'ORMliUS.
The card was replaced, the *t OJI]-I new card and associated functions were tested. The monitor was returned to an. C!Jil I nperable status within. ~6 minutes. I C!lil. i..... ...... -----------------------
L!l> *w@:
...... --...... ------------
                                                                                                                                                                                        ~
C!ID 7 8' 9 so: FACILITY . ~30. M£1MOD OF STATUS % JIOWEJII, . OTHER STATUS v::::/ -OISCOV!A'I' . -OISC°'1EAY DESCRIIITION  
SU""UER*
'51 1TJilJLl.@.
                                                                                                                                                                                                                  '3-               -       44 MANUFACTURER
J 1 J O I O !@)I N/ A -W@ ... I _o.;;.pe_r_a_to_r_ob_s_e_rv_a_t_i_on
                                                                                                                                                                                                                                        '~ I V 11 11 I 5 I               ,,
___________
CAUSE CESCAIPTlON AND CORRECTIVE ACTIONS                                                @                                                        _.
I__." ___ _ 7 . s-9 10 12 1'! 44-41* -4 so . ACTIVITY' CQNT!NT -_ t.::\ r.r::,R!LEAS!~F RELEASE AMOUNT OF ACTIVITV ~. _ -. _u:)CATl<<;IN OP: "iLIASE L.:...L:J 1LJ ~-WI N/A I I N/A , a g-10 11 44
o:I[J _!- The               cause was due to a failed -card -in the
* P!!RSONNEI.
* ala'I"Ill *circuit.                                                                                             The card was replaced, the                                                   *t OJI]- I new card and associated functions were tested.                                                                                               The monitor was returned to an.                                                                                 I C!Jil I nperable                         status within. ~6 minutes.
EXPOSURES  
C!lil.         i...........- - - - - - - - - - - - - - - - - - - - - - -......- -......- - - - - - - - - - - -
-Q I so. NUMS!R
C!ID8' 7             9                                                                                                                                                                                                                                                   so:
* TYl"E OESCf'IIPTION O:II1.IO 10 10 l~L!J~~------N.;../A
FACILITY                                                                       .           ~30.               M&#xa3;1MOD OF                                                                                                 ~
__________________ 1 a g 11 12 1:i so PERSONNEL INJURIES I'.:':\ IIIUMBER . OESCl'll"10N~
STATUS                   % JIOWEJII,               .           OTHER STATUS             v::::/ - OISCOV!A'I'                           .-                               OISC&deg;'1EAY DESCRIIITION                     '51 1TJilJLl.@. J1                            J   O O I !@)I                       N/ A                                 -         W@I..._o.;;.pe_r_a_to_r_ob_s_e_rv_a_t_i_on___________I__."___ _
_r:I:@_ lo lo 10 l@ ... ---. ______ _.;;N_/A_.  
7   . s-   9                   10                 12       1'!                                                 44-       41*         -   4                                                                                                                   so       .
' a 9 11 12 BO . . I.OSS OF OR OANIAGE TO FA~LITY 143&deg;" ', TYi'!!* OESCFIIPTION
ACTIVITY'           CQNT!NT                             -                               ~                      _                                                                                               t.::\
* '..:::::, o:m .. ILJ@~-------
r.r::,R!LEAS!~F RELEASE                                       AMOUNT OF ACTIVITV ~ .                                     _                                                         -. _u:)CATl<<;IN OP: "iLIASE               ~
_____ ..;;J:.;.:.l/,;;,;;;A.;....
L.:...L:J
_________________ , a 9 10
        ,      a 1LJ g-
* so PUBLICITY C,., NFIC us-ON ISSUEDC\ OESCRIPTION i: Ly .,. IffiJ. L!.Je, __ _________
                                ~-WI   10            11 N/A 44 I
N_/_A __________
* I             N/A                                                                                                           I so.
__. I I I I I I I I I I I I Li' __ _ , s 9 10 68 H ao ;. (804) 357-3184 ~--*-***** * ... * ***.-* *-**-*. *r, ." ".'~*:**:**_,*'*  
P!!RSONNEI. EXPOSURES                     -                 Q NUMS!R * ~ TYl"E ~ OESCf'IIPTION ~
;; , ',_, .. ~~:.-* *':"'_*::_:**  
O:II1.IO 10 10                       l~L!J~~------N.;../A                                                 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
.:.*~.ry,u,r".;:.f(:.':
1       a     g                   11         12         1:i                                                                                                                                                                                                     so PERSONNEL INJURIES                         I'.:':\
_____ *_._:,::.;  
IIIUMBER         .       OESCl'll"10N~
,,5.,.-!:;,.,~~  
_r:I:@_
.. **,a-*-,0 ATTACHMENT-1 SURRY' POWER STATION, UNIT 2 DOCKET NO: 50-281 _ REPORT NO: 81-020/03L-O  
      '        a 9 lo lo 10 11l@...12- -._______.;;N_/A_.- - - - - - - - - - - - - - - - - - -BO
-EVENT DATE: 02-23-81 ------*----**--------
  .               . I.OSS OF OR OANIAGE TO FA~LITY                     143&deg;"
-----~--***---TITLE.OF EVENT: RADIATION MONITOR (RM.:..cc.:..106).
o:m ..ILJ@~-------_____
MALEUNC.TI.ON___
      ,        a 9 TYi'!!*        OESCFIIPTION
__ ~-----------------------------
* 10
: 1. DESCRIPTION OF EVENT: With Unit No. 2
                                                                                                      ..;;J:.;.:.l/,;;,;;;A.;...._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~
* at 100% power, an operator-=:-ohserved~the_:_~_CC-1.06  
so PUBLICITY ISSUEDC\ OESCRIPTION ~
-~~aler..t!!.".and.  
C,.,                                                                                                                                                                     NFIC         us-i: ON Ly                     .,.
.. "high" alarm lights on. The automatic closure.of HCV-CC-100 (CC Head Tank Vent) and the* associated annunciator had not.._func.t.ioned  
IffiJ. L!.Je,_ ~_________N_/_A_ _ _ _ _ _ _ _ _ ___. I I I I I I I I I I I I Li'__ _
*.. This_+/-s_c.o.nt.raryc_* to Tech. Spec. 3 *. 7-~ Table 3. 7-5 and is-rep_g:r~able per Tech. Spec. 6.6.2.b(4)  
      ,       s 9                   10                                                                                                                                                                         68 H                                                     ao ;.
* . . -*------. ---**-* ' .. ,---*-. -*--*------*-**-
(804) 357-3184                                                     ~-
                                                                                  -*-*****   *   ...     *     ***.-*         *-**-     *. *r, ." ".'~*:**:**_,*'* ;;   , ' , _ , .. ~~:.-* *':"'_*::_:**         .:.*~.ry,u,r".;:.f(:.':_____*_._:,::.; ,,5.,.-!:;,.,~~ ..   **,a-*-,0
 
ATTACHMENT- 1 SURRY' POWER STATION, UNIT 2 DOCKET NO:     50-281
_REPORT NO:     81-020/03L-O -
EVENT DATE:     02-23                                                                   ----- *----**-------- -- - --~- -***- --
TITLE.OF EVENT:       RADIATION MONITOR (RM.:..cc.:..106). MALEUNC.TI.ON___ __~---- ---- - --------------------
: 1. DESCRIPTION OF EVENT:
With Unit No. 2
* at 100% power, an operator-=:-ohserved~the_:_~_CC-1.06 -~~aler..t!!.".and...~-~---
    "high" alarm lights on. The automatic closure.of HCV-CC-100 (CC Head Tank Vent) and the* associated annunciator had not.._func.t.ioned *..This_+/-s_c.o.nt.raryc_*- - - - - -
to Tech. Spec. 3 *.7-~ Table 3. 7-5 and is- rep_g:r~able per Tech. Spec. 6.6.2.b(4) *
: 2. PROBABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:
: 2. PROBABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:
The CC Head Tank vents. to the Process Vent*System.
The CC Head Tank vents. to the Process Vent*System. The process vent system has it's own radiation monitor and if the high alarm- setpoint-is..: exceeded-, ---
The process vent system has it's own radiation monitor and if the high alarm-setpoint-is..:
effluent releases are automatically terminated. Since CC Head .Tank Vent is monitored by the Process Vent System and the, .operator -:i.mmediately closed the CC Head Tank Vent Valve, the health and safety of the public- were not-a-ffected-.-.-
exceeded-, -effluent releases are automatically terminated.
: 3. CAUSE:
Since CC Head .Tank Vent is monitored by the Process Vent System and the, .operator  
The cause was. due to a failed card in thealarm:circuit.
-:i.mmediately closed the CC Head Tank Vent Valve, the health and safety of the public-were not-a-ffected-.-.-
: 4. IMMEDIATE* CORRECTIVE ACTION:*
: 3. CAUSE: The cause was. due to a failed card in thealarm:circuit.
The immediate action' was. to close the CC HeacLTank Vent Valve as specified in:
: 4. IMMEDIATE*
AP-5 ~- 5.                                                 ------------*------- **-***""---- --------~ * *------------
CORRECTIVE ACTION:* The immediate action' was. to close the CC HeacLTank Vent Valve as specified in: AP-5 ~-5. ------------*-------
: 5. SUBSEQUENT CORRECTIVE ACTION:
**-***""----
The failed card was replaced with a new card-.----The-'-a-lai:lll**-c--irctt-:H:--and--*-associated-------
--------~  
functions::were tested' satisfactorily.* The ..radiation monitor was returned to an operabl*e status within.26 minutes.                       - ----- -               --~--- * - - - - - - - - - - - -
** *------------
: 6. ACTION TAKEN TO PREVENT RECURRENCE: .
: 5. SUBSEQUENT CORRECTIVE ACTION: The failed card was replaced with a new functions::were tested' satisfactorily.*
    ~one, deemed necessary *.
The .. radiation monitor was returned to an operabl*e status within.26 minutes. ---------~---*---------
: 7. GENERIC IMPLICATIONS:
---6. ACTION TAKEN TO PREVENT RECURRENCE: . ~one, deemed necessary  
None.
*. 7. GENERIC IMPLICATIONS:
                                                                        ""'* .... *-*---------}}
None. -----------
""'* .... *-*---------}}

Latest revision as of 12:38, 17 March 2020

LER 81-020/03L-0:on 810223,during Full power,RM-CC-106 Alert & High Alarm Lights Energized W/O Initiating Required Automatic Action.Caused by Failed Card in Alarm Circuit.Card Replaced & Tested
ML18139B180
Person / Time
Site: Surry Dominion icon.png
Issue date: 03/16/1981
From: Joshua Wilson
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139B179 List:
References
LER-81-020-03L, LER-81-20-3L, NUDOCS 8103190654
Download: ML18139B180 (2)


Text

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U.S. NUCLEAR REGULATORY COMMISSION-0

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  • LICENSEE EVENT REPORT

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VENT OESCRIPTlON ANO PROBASL.E CONSEQUENCES.@) _

!]:DJ jWith Unit Uo. 2 at 100% power,. the RM-CC-106 "Alert" and "high" alarm lights energized I

~ !without initiating the required automatic action *. This is contrary to T.S. 3-1, Table I_

C[I~:L13**7..;.5 and is: reportable per T.S. 6.6.2.b(4)*. Since the CC He~d-Tank Vent* is also

((IIJ rmonitored by the Process Vent System radiation. monito.r

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C§J1J !immediately closed, the health and safety of the public were not affected. I ______

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CAUSE CESCAIPTlON AND CORRECTIVE ACTIONS @ _.

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ATTACHMENT- 1 SURRY' POWER STATION, UNIT 2 DOCKET NO: 50-281

_REPORT NO: 81-020/03L-O -

EVENT DATE: 02-23 ----- *----**-------- -- - --~- -***- --

TITLE.OF EVENT: RADIATION MONITOR (RM.:..cc.:..106). MALEUNC.TI.ON___ __~---- ---- - --------------------

1. DESCRIPTION OF EVENT:

With Unit No. 2

  • at 100% power, an operator-=:-ohserved~the_:_~_CC-1.06 -~~aler..t!!.".and...~-~---

"high" alarm lights on. The automatic closure.of HCV-CC-100 (CC Head Tank Vent) and the* associated annunciator had not.._func.t.ioned *..This_+/-s_c.o.nt.raryc_*- - - - - -

to Tech. Spec. 3 *.7-~ Table 3. 7-5 and is- rep_g:r~able per Tech. Spec. 6.6.2.b(4) *

2. PROBABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:

The CC Head Tank vents. to the Process Vent*System. The process vent system has it's own radiation monitor and if the high alarm- setpoint-is..: exceeded-, ---

effluent releases are automatically terminated. Since CC Head .Tank Vent is monitored by the Process Vent System and the, .operator -:i.mmediately closed the CC Head Tank Vent Valve, the health and safety of the public- were not-a-ffected-.-.-

3. CAUSE:

The cause was. due to a failed card in thealarm:circuit.

4. IMMEDIATE* CORRECTIVE ACTION:*

The immediate action' was. to close the CC HeacLTank Vent Valve as specified in:

AP-5 ~- 5. ------------*------- **-***""---- --------~ * *------------

5. SUBSEQUENT CORRECTIVE ACTION:

The failed card was replaced with a new card-.----The-'-a-lai:lll**-c--irctt-:H:--and--*-associated-------

functions::were tested' satisfactorily.* The ..radiation monitor was returned to an operabl*e status within.26 minutes. - ----- - --~--- * - - - - - - - - - - - -

6. ACTION TAKEN TO PREVENT RECURRENCE: .

~one, deemed necessary *.

7. GENERIC IMPLICATIONS:

None.

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