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| {{Adams
| | #REDIRECT [[05000280/LER-1981-022-03, /03L-0:on 810703,low Flow Alarm Observed for Process Vent Sys.Caused by Process Blower Motors Out of Svc Due to Valve 1-CM-21 Leaking Through to Vent Piping During Attempt to Drain Mixed Bed Demineralizer 1A for Resin Fill]] |
| | number = ML18139B388
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| | issue date = 06/05/1981
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| | title = /03L-0:on 810514,amp Reading for Heat Tracing Panel 9,circuit 20C,found Below Acceptance Criteria.Caused by Excessive Heat.Tracing Replaced & Tested.Design Change Initiated
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| | author name = Wilson J
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| | author affiliation = VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
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| | docket = 05000280, 05000281
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| | license number =
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| | contact person =
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| | document report number = LER-81-022-03L-01, LER-81-22-3L-1, NUDOCS 8106090559
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| | package number = ML18139B384
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 3
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| }}
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| {{LER
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| | Title = /03L-0:on 810514,amp Reading for Heat Tracing Panel 9,circuit 20C,found Below Acceptance Criteria.Caused by Excessive Heat.Tracing Replaced & Tested.Design Change Initiated
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| | Plant =
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| | Reporting criterion =
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| | Power level =
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| | Mode =
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| | Docket = 05000280
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| | LER year = 1981
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| | LER number = 22
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| | LER revision = 3
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| | Event date =
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| | Report date =
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| | ENS =
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| | abstract =
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| }}
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| | |
| =text=
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| {{#Wiki_filter:*
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| NRC FORM 366
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| .LICENSEE EVENT REPORT U.S. NUCLEAR REGULA. TORY COMMISSION li-7')
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| CONTROL BLOCK: '
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| I',\\
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| (PLEASE P~INT OR TYPE ALL REOUIREC INFORMATION) l--..... _
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| ............... _..._ __ ---,!6 \\.!.I
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| ~
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| ! V ! A I S I P I SI 2 IQ)l O I OJ S
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| 9 L.ICSNSEE COOE 14 7S
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| :- I o I 01 01 01 01 -I 01 o 1014 11 J 1 1111101 l I© LICENSE NUMBER 2S.
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| 25 L.ICENSE TYPE JO S7 CAT SS CON"7
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| ~-
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| 7 6
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| ~;~~~~ LI© I o I s l o l o I o I 21 s 1 1 101. o I s 1 1 I 4 I s I 1 l© I o I 6 I o I s Ls I 1 10 60 61 DOCKET NUMBER 6S 69 EVENT DATE 74 7S REPORT OA, =
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| BO EVENT DESCRIPTION AND PR06ASLE CONSEQUENCES@
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| I With Unit No. 2 at 100% power, PT-27C revealed* that amn readino for heat tracing
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| .III!]. J Panel 9, circuit 20C, was below the acceptance criteria stipulated in the PT.
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| This
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| ([II] I event is contrary to T.S. 3.2.B.5 and is reportable per T.s: 6.6.2.b(2).. ~he [TI)) _I redundant. heat tracing circuit was operable, therefore, the health* and safety of the J..
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| [£I[] I public were not affected, IITil L.....------------------------------------___..
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| wIJ 7
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| B 9
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| .. rrm 8
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| SYSTSM CODE
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| !S IHI@
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| 9 10 C\\ LER/RO LVENT YEAR
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| \\!..:.J REPORT I 8 I 1 !
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| NUMBEFI 21 22
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| | |
| ==CAUSE==
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| CAUSE CODE SUBCOOE COMPONENT CODE
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| , El@ liJ@, H, E, A, T, E, R,e 11 12 13 18 SEQUENTIAL OCCURRENCE REPORT NO, cooe I o I 21 21
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| *I,I Io I 3 I 24 26 27 28 29 COMP.
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| SUBCOOE W
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| 19 REPORT TYPE lliJ 30 VALVE SUBCOOE w@
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| 20 1:=l 31 BO REVISION NO. w 32 COMPONENT ACTION l'UTURE EF;:ECT
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| *SHUTOOWN
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| ~ ATTACHMENT NPRc-4 PRIMECOMP.
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| TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORMliUB.
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| SUPPI.IER MANUl'ACTURER
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| *-l*T *l l'*Ws.j s !@.
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| 44 47
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| _*_ LSJfis\\L!.J@)
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| ~'20' W I* o l o I o I o I* t!J@* L!U@). W-33 S!V 34 3S
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| ~ JS 37 40 41 42 43 CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS @
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| D:I]J j The loss of heat tracing was aue to excessive heat. The defective heat trac;n2 was o:::IIJ replaced and tested.
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| A design change has been initiated tq change tbe manner by
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| !III!
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| which these borated lines are heat traced.
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| I 1-., _____________ __:._~;:.;;..;;~-------------------
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| o:TIJ l..l -------------------------------------.-J t!El 8
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| 9 FACILITY
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| '3Q1 STATUS
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| % POWER OTHER STATUS \\:::::)
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| 1ITI1 -~@.1 1 I O I O '"""'' __
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| N.;.../ A ___
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| 8 9
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| 10 1:Z 13
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| '4 ACTIVITY CONTENT IC\\
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| RELEASED OF RELEASE AMOUNT OF ACTIVITY ~
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| [2EI Ll.l@ W@I
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| , N/A a
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| 9 10 11 7
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| METHOOOF
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| . A DISCOVERY OISCO~ERY DESCRIPTION -~
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| W@I Routine Test.
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| 45 46 N/A
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| ,LOCATIO~ OF RELEASE 80 PERSONNEL EXPOSURES Q
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| NUMBER t:::;\\ TYPE~ DESCRIPTION ~
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| !'' EITI J, 0 I O I O lLl.J~I..----* _..;,;N~/A~--------------------"'
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| a 9 12 1:
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| so PERSONNEi. INJURIES
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| ~
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| I\\IUMBER' CESCRll'TION6
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| . ETIJ _.I O IO IO !@1.-.. _____...;;~.;,:..~/A~-----------------,-~
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| a s 11 12 110
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| *,..*...,, *",,.*,.,, '*l:.OSS"OF OR DAMAGE TO FAC:11..ITY t:::'13
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| .TYPE
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| ==DESCRIPTION==
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| ~
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| : 13}3* L~J@1--. __
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| r....;.~/_A ____________________
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| ~
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| *,..
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| * a s*
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| 10 so PUBLICITY C\\
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| NRC USE ONLY
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| .* ISSUEOQ DESCRIPTION~
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| Im] LEJ~----------~N_/A=--------------
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| I l I l *l I l I l l I I I !
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| 7 S
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| 9 10.
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| 68 6S 80 ;
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| ~AME OF P=e? ARER _..;:J'=..*;....:L:.:.* _W=i=l-=s=o=n:..... ________ _
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| (804) 357~3184
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| ~
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| ATTACHMENT 1 SURRY POWER STATION, UNIT No. 2 DOCKET NO:
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| 50-281 REPORT NO:
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| 81-022/03L-0 EVENT DATE:
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| 05-14-81 TITLE OF EVENT:
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| HEAT TRACING FAILURE
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| ~
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| : 1.
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| ==DESCRIPTION OF EVENT==
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| With Unit No. 2 at 100% power, PT-27C revealed that the amp reading for heat tracing Panel 9, circuit 20C (".C" BAST recirc. line), was below the acceptance criteria stipulated in the PT.
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| This event is contrary to Technical Specification 3.2.B.5, and is reportable per Technical Specification 6.6.2.b(2).
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| : 2.
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| PROBABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:
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| The heat tracing circuits are intended to maintain a fluid temperature above that needed for flow.
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| The redundant heat tracing.circuit was operable, therefore, the health and safety of the public were not affected.
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| : 3.
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| ==CAUSE==
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| The loss o:1; heat tracing was due to excessive heat.
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| : 4.
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| U1MEDIATK CORRECTIVE ACTION:
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| The irrnnediate corrective action was to verify that the redundant circuit was operable.
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| : 5.
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| SUBSEQUENT CORRECTIVE ACTION:
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| The defective heat tracing tape-was** replaced and tested within the time span specified by Technical Specifications.
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| : 6.
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| ACTION TAKEN TO PREVENT RECURRENCE:
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| No additional actions were deemed necessary.
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| : 7.
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| GENERIC IMPLICATIONS:
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| A task force has reviewed the total spectrum of the Heat Tracing system and a Design Change is being prepared as a result of the Task Force's study.
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| Long lead items are being procured.
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| *.:..:~~.:;._.::._..... --
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| -:- -~- ---,,...
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| -- ____ j
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| ::11~ *.:.:-System *:e.ode -~\\\\*- ~;:iP-. ~
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| s~~ - -... ;-; '.:.:-~,,;,:<',4*;;',.:;;<*:'.",:,,
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| ;;:-~"""='.,..,.,...
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| *.:..12.
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| l4.. Componen_t 0.code l5.
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| Component -sti.bcoae
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| .l6. Valve -subcode.. -*-:c:..;;.
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| : 18.
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| Action taken c..
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| : 19.
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| Future action I-
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| : 20.
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| Effect on plant ~
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| i*
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| : 21.
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| Shutdown method c:::-
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| : 22.
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| Hours 0
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| : 23.
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| Attachments
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| : 24.
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| *.25.,
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| .. - -::-,-*.: ~*' -
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| , -r.....:?.
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| --*_;,-.:.. ;--.:-- ~..
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| --*.~~-..:..-.--.~~~_......=___. -.-:*..:*.'.:..~(::'.(:'=\\.--::.. : *-*
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| NPRD Form
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| ;ir,~-h:l:v~.
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| I
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| ~ '{I Prime component supplier -;G, ~-
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| : 26.
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| Component manufacturers -'--tR(2. v'LM ~
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| : 28.
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| : 31.
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| s k,; ~. ~----
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| ==Method of discovery==
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| Q 0 _ v, 1..... E l ~
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| I.
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| Facility status
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| : 33. Activity -:released
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| :- 34.
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| Contents of.release
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| : 35.
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| Amount of activity
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| * 38.
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| Personnel exposure type
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| : 42.
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| Type damage/loss L
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| }}
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| {{LER-Nav}}
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