ML19095A639: Difference between revisions
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=Text= | =Text= | ||
{{#Wiki_filter:.. } :. :* | {{#Wiki_filter:.. } :. :* | ||
*.~~*. ; ~ .* *,, .: | *.~~*. ; ~ .* *,, .: | ||
.:~.<--,vi~o;*f~'.~-LEC!~tno:ii~~-::i>o;.E_a:coMPA*- | .:~.<--,vi~o;*f~'.~-LEC!~tno:ii~~-::i>o;.E_a:coMPA*- | ||
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' . ., ':: ~, . | ' . ., ':: ~, . | ||
19'16** | 19'16** | ||
. M~. :.~orrtian*. 6:- Mo'sel~'.y, ;ri'tr~~td*r: - ** . -~ .., ./* .* s.e~_ia*l .N~.* 9s*2 | . M~. :.~orrtian*. 6:- Mo'sel~'.y, ;ri'tr~~td*r: - ** . -~ .., ./* .* s.e~_ia*l .N~.* 9s*2 | ||
. ,**: .. Office :qf: -Insp*ectioii and 'Enforcement,*.'*:_*:. *:** '*PO~/ALH:Hf .** | . ,**: .. Office :qf: -Insp*ectioii and 'Enforcement,*.'*:_*:. *:** '*PO~/ALH:Hf .** | ||
Line 34: | Line 32: | ||
' * * *Atlant~; Georgia . ,:* 30303 .* * .. | ' * * *Atlant~; Georgia . ,:* 30303 .* * .. | ||
*'. ' ''. ' *. ;., .. ' *' . | *'. ' ''. ' *. ;., .. ' *' . | ||
==Dear Mr'/Mos~+ey(.:== | ==Dear Mr'/Mos~+ey(.:== | ||
.' ' , . ~ . . . *. _Pursuant to Surcy p~~e.i:_'.':'.s'.~~-tiJn)T~~h~i6:at*~~e;c_ifi~f.{ticiti'6.6.2~ the | .' ' , . ~ . . . *. _Pursuant to Surcy p~~e.i:_'.':'.s'.~~-tiJn)T~~h~i6:at*~~e;c_ifi~f.{ticiti'6.6.2~ the | ||
.Virginia Elec:tric . and Power,1 Comp.ifry..: hereby submits :.fortj' ( 40) . copies . of' Report,- | .Virginia Elec:tric . and Power,1 Comp.ifry..: hereby submits :.fortj' ( 40) . copies . of' Report,- | ||
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,:. Sa:f ~ ty -and Opera t'ihg/ domfui t t'e~.- /ai'.id: wii f: bi/pl ~c-ed: ~n :the :*ag~nda 'for': the*: rtef t . | ,:. Sa:f ~ ty -and Opera t'ihg/ domfui t t'e~.- /ai'.id: wii f: bi/pl ~c-ed: ~n :the :*ag~nda 'for': the*: rtef t . | ||
i? :n~Je~ing; o1:. 'the. *~y~.t'e~*,m1ci~ar:'..s!lf/,r~i,'-_<9.jc1 -~pet:kEin's*i~6mrri1.ttee*/-:*-. ,* '. ' *} ., . | i? :n~Je~ing; o1:. 'the. *~y~.t'e~*,m1ci~ar:'..s!lf/,r~i,'-_<9.jc1 -~pet:kEin's*i~6mrri1.ttee*/-:*-. ,* '. ' *} ., . | ||
::i.!_ | ::i.!_ | ||
.... ~;Yt;-1:lil(§oti~~, ;:::/;. | .... ~;Yt;-1:lil(§oti~~, ;:::/;. | ||
Line 54: | Line 48: | ||
.* .:.:.-;:,Vic~ :Pi~s i~ent".'P!)"7er' S.upply,'.* . ' | .* .:.:.-;:,Vic~ :Pi~s i~ent".'P!)"7er' S.upply,'.* . ' | ||
': ,>and,* . . - | ': ,>and,* . . - | ||
. Pr,oduct'i9Il | . Pr,oduct'i9Il Op.eta tiorii3,\_*: . | ||
Op.eta tiorii3,\_*: . | |||
. '* . : .*. ~ ..' : . | . '* . : .*. ~ ..' : . | ||
Enc leisures\: *. .. . . . ,. :,.; . _ . ~.'* | Enc leisures\: *. .. . . . ,. :,.; . _ . ~.'* | ||
.£. | .£. | ||
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: .ti.o c~pie~ JJ$RE-s1..;16 .. 02 '.- | : .ti.o c~pie~ JJ$RE-s1..;16 .. 02 '.- | ||
cc:- .M~-. Ro beit w*~ .~~id/Chief *, | cc:- .M~-. Ro beit w*~ .~~id/Chief *, | ||
. ,,: * * -',Qperating | . ,,: * * -',Qperating | ||
*ReactqrJ . . | *ReactqrJ . . | ||
Bra~ch*:4_ | Bra~ch*:4_ | ||
:~. ,'I;,* | :~. ,'I;,* | ||
** .. ,'_.:,"' - ' *~ | ** .. ,'_.:,"' - ' *~ | ||
-~ | -~ | ||
* 1.:. | * 1.:. | ||
~ . ' I :_ * ; | ~ . ' I :_ * ; | ||
,;*:. | ,;*:. | ||
Line 114: | Line 95: | ||
GPO eai. 667 | GPO eai. 667 | ||
CAUSE DESCRIPTION (CONTJNUED) | |||
* assembly was remov~d and bench tested. The plastic plunger was binding with the plunger guide plate. After positioning the guide plate properly and lubricating it, the relay operated satisfactorily 50 times during 50 tests. A replacement timing relay/micro switch assembly was obtained from inventory. The same problem was initially found. Corrective adjustments were made, bench testing was satisfactorily completed, and this assembly installed in the circuit. The valvewas returned to service following operational testing. Since the valve is normally open during power operation and all other valves operated properly, it is felt that no further corrective. | * assembly was remov~d and bench tested. The plastic plunger was binding with the plunger guide plate. After positioning the guide plate properly and lubricating it, the relay operated satisfactorily 50 times during 50 tests. A replacement timing relay/micro switch assembly was obtained from inventory. The same problem was initially found. Corrective adjustments were made, bench testing was satisfactorily completed, and this assembly installed in the circuit. The valvewas returned to service following operational testing. Since the valve is normally open during power operation and all other valves operated properly, it is felt that no further corrective. | ||
action is required at this time. However, plunger action will be verified monthly until such a time that the cause of plunger binding can be isolated and corrected. | action is required at this time. However, plunger action will be verified monthly until such a time that the cause of plunger binding can be isolated and corrected. | ||
j}} | j}} |
Revision as of 10:43, 2 February 2020
ML19095A639 | |
Person / Time | |
---|---|
Site: | Surry ![]() |
Issue date: | 04/15/1976 |
From: | Stallings C Virginia Electric & Power Co (VEPCO) |
To: | Moseley N NRC/IE, NRC/RGN-II |
References | |
LER 1976-002-00 | |
Download: ML19095A639 (3) | |
Text
.. } :. :*
- .~~*. ; ~ .* *,, .:
.:~.<--,vi~o;*f~'.~-LEC!~tno:ii~~-::i>o;.E_a:coMPA*-
. ilic:e:M'.bNJ),V1Rtini'IA '2~261
...*;
I . ~'
.: *._.*Apri(:1:S;
' . ., ':: ~, .
19'16**
. M~. :.~orrtian*. 6:- Mo'sel~'.y, ;ri'tr~~td*r: - ** . -~ .., ./* .* s.e~_ia*l .N~.* 9s*2
. ,**: .. Office :qf: -Insp*ectioii and 'Enforcement,*.'*:_*:. *:** '*PO~/ALH:Hf .**
.* . 0:.U.~ *s ** Nuc.le.ar Regulat:ory- donmi:tss'ion :,_: ...
. :::)leg:i,on*I;[ f*Suit,e_(318*.... . . . * ..'.*Docket No.* 50-280 *
.. *; .. *._.z30*:Peachtree Str~et, .No.rthwest .* Lfcens~ :No~ *. DPR-32'
' * * *Atlant~; Georgia . ,:* 30303 .* * ..
- '. ' . ' *. ;., .. ' *' .
Dear Mr'/Mos~+ey(.:
.' ' , . ~ . . . *. _Pursuant to Surcy p~~e.i:_'.':'.s'.~~-tiJn)T~~h~i6:at*~~e;c_ifi~f.{ticiti'6.6.2~ the
.Virginia Elec:tric . and Power,1 Comp.ifry..: hereby submits :.fortj' ( 40) . copies . of' Report,-
- '.*~ble <Occurrenc~'.'No. *-vs~E.:.s1:..16..;oi.: .. . .. ,.:. I * * * * * .*
. . *:. _:***._.*;ii~ . :~;~~tJ~~~~-. J:{'t11If.r~b~rt~as. *]j~~lr~~iewed.*b;:'th~'*iftaii~n-Nuc1ear.: *
,:. Sa:f ~ ty -and Opera t'ihg/ domfui t t'e~.- /ai'.id: wii f: bi/pl ~c-ed: ~n :the :*ag~nda 'for': the*: rtef t .
i? :n~Je~ing; o1:. 'the. *~y~.t'e~*,m1ci~ar:'..s!lf/,r~i,'-_<9.jc1 -~pet:kEin's*i~6mrri1.ttee*/-:*-. ,* '. ' *} ., .
- i.!_
.... ~;Yt;-1:lil(§oti~~, ;:::/;.
. . .~*,.: _.
. ~
~~*
.. \:. M~- S~aliings . : , ~..
.* .:.:.-;:,Vic~ :Pi~s i~ent".'P!)"7er' S.upply,'.* . '
': ,>and,* . . -
. Pr,oduct'i9Il Op.eta tiorii3,\_*: .
. '* . : .*. ~ ..' : .
Enc leisures\: *. .. . . . ,. :,.; . _ . ~.'*
.£.
.' _, *;. '
- .ti.o c~pie~ JJ$RE-s1..;16 .. 02 '.-
cc:- .M~-. Ro beit w*~ .~~id/Chief *,
. ,,: * * -',Qperating
- ReactqrJ . .
Bra~ch*:4_
- ~. ,'I;,*
- .. ,'_.:,"' - ' *~
-~
- 1.:.
~ . ' I :_ * ;
,;*:.
i-- e LICENSEE EVENT R~~ORT .
CONTROL BLOCK: I I I I *I I I
- clAsE PRINT ALL REau1REo 1NF0RMATIDNJ 1 6 LICENSEE LICENSE *
- EVENT NAME LICENSE NUMBER TYPE TYPE
@I2JlvlAlslPI 7 8 9 sl 1411 15Io Io 1-1 oI oI oI oI ol-1 o I o25I l411l1l1lol 26 30 lo31 '332I REPORT REPORT CATEGORY TYPE. SOURCE DOCKET NUMBER EVENT DATE REPORT DATE 7
@ElcoNT 8
IP Io I 57 58 w 59 lkJ 60 l.Qlslol~lol2l sl o! lol311lsl1IGI I o I 4 I 1 I 3 !1 I6 I 61 68 69 74 75 80 EVENT DESCRIPTION
. 7 lol2!8 9I With the unit shutdown, Auxiliary Feedpump Discharge Valve MOV-FW..:151A failed to 80 10131 I open when the main feedpump breakers were opened. This is in violation of Technical I 7 8 9 80 lol41 I Specification 3.6. The redundant valve opened satisfactorily. A similar event I 7 8 9 80
@:@] I occurred on 12-11-75 and is described in AO-Sl-75-28. I 7 8 9 80 7
&rill8 9 80 PRIME SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATION 7
@0 8
I cl HI 9 10 w 11 IR I E IL IA I y IX I 12 17 w 43 I Ai 1 ! 0 ! 9 I 44 47 LY.J 48 CAUSE DESCRIPTION
~ I An investigation *revealed that the *,ralve- malfunction was caused by the timing relay I 7 8 9 80
@:{fil I which is a oart of the control circuit. The relay plunger failed to activate a micro I 7 8 9 80
[I@J I switch ne~essary for the valve opening operation. The timing relay/micro switch(Cont 1 d~
7 8 9 80 FACliJTY METHOD OF STATUS % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE] ~ lo Io Io I IN/A lAJ IN/A
~,
7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY CONTENT rn w RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE N/A N/A 7 8 9 10 11 44 45 BO PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION IIel8 9lo lo I oJ11 I12zl 13.___;;N;.;.i. .; .A;. ___________________________
7
___J 80 PERS-ONNEL INJURIES NUMBER .DESCRIPTION EE)8 7
I OIO 9
IO 11I 1I *N/A '::::2~'-'=-----*-------------------------------8..JO OFFSITE CONSEQUENCES
~ NA 7 8 9 BO LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION
~.8 9~ 10~N=/-"'A'---~~~~~~~~~~~~~~~~~~~~~~~~~~~------'
7 80 PUBLICITY E08 9I NIA 7 80 ADDITIONAL FACTORS
~ I The health and safety of the public were not affected by this occurrence because the I 7 8 9 80
~ I redundant valve opened, as did all of the other similar valves.
7 8 9 80 N A M E = - - - - - - - - - - - - - - - - - - - - - - - PHONE: _ _ _ _ _ _ __
GPO eai. 667
CAUSE DESCRIPTION (CONTJNUED)
- assembly was remov~d and bench tested. The plastic plunger was binding with the plunger guide plate. After positioning the guide plate properly and lubricating it, the relay operated satisfactorily 50 times during 50 tests. A replacement timing relay/micro switch assembly was obtained from inventory. The same problem was initially found. Corrective adjustments were made, bench testing was satisfactorily completed, and this assembly installed in the circuit. The valvewas returned to service following operational testing. Since the valve is normally open during power operation and all other valves operated properly, it is felt that no further corrective.
action is required at this time. However, plunger action will be verified monthly until such a time that the cause of plunger binding can be isolated and corrected.
j