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| {{Adams
| | #REDIRECT [[05000267/LER-1979-055-03, /03L-0:on 791026,during Surveillance Testing,Check Valve V-22370 Was Stuck Open,Making Fire Water Booster Pumps Inoperable for Helium Circulator Drive.Cause Unknown.Valve to Be Opened & Inspected]] |
| | number = ML19323D016
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| | issue date = 05/09/1980
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| | title = /03X-1: on 791026,during Scheduled Surveillance Testing,Check Valve V-22370 Was Found to Be Stuck Open. Cause Not Identified.Valve Was Opened & Inspected,Then Cleaned & Lubricated
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| | author name = Gahm J
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| | author affiliation = PUBLIC SERVICE CO. OF COLORADO
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| | addressee name =
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| | addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
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| | docket = 05000267
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| | license number =
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| | contact person =
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| | document report number = LER-79-055-03X-01, LER-79-55-3X-1, NUDOCS 8005190537
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| | package number = ML19323D010
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| | document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
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| | page count = 1
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| }}
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| {{LER
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| | Title = /03X-1: on 791026,during Scheduled Surveillance Testing,Check Valve V-22370 Was Found to Be Stuck Open. Cause Not Identified.Valve Was Opened & Inspected,Then Cleaned & Lubricated
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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 = 05000267
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| | LER year = 1979
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| | LER number = 55
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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:NT.C FORM 366 U.S. NUCLEAR REGULATbRY COMMISSION 87 77)
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| [g%%
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| LICENSEE EVENT REPORT CONTROL BLOCK: l l
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| l l
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| l l
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| lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) i e
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| lo lil IC 10 I r l s I V l 1 l@l 010 l-10101010 l0 l-l010 l@l4 l1 l1 1210 l@l l
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| l@
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| 7 8 9 LICENSEE COCE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE Jo
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| $7 CAT 58 i
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| CON T lolil 3e[,c[ l L @l 0 l 5 l0 l 010 l 2 l 617 @ll 1012 l6 l 7 l9 l@l 0l 5l 0l 9l 8l 0l@
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| 7 8
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| 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PRCBABLE CONSEQUENCES h lol2l l During scheduled surveillance testing, a check valve (V-22370) was found to be stuck
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| [
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| l o 13 l lopen. This event degraded the firewater booster pumos for helium circulator drive.
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| I I o I.: I l The reactor had been operated at power since the last demonstrated operability of the l l
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| Io!sl l booster pumps. LCO 4.2.19 recuires that one booster pump be ooerable when the reactor l 1
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| I o 16 I l is at power.
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| It must be assumed that the reactor was coerated at oower with degraded I 10171 l boos te r pucos.
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| There was no ef fect uoon the health or safety of the public.
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| Re-l l o i a I l dundant systems were available.
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| Reportable per Technical Soecification AC 7.5.2(b)2. I 7
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| g 9 80 E
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| CODE SUSC E COMPONENT CODE SUSC DE SU E
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| i lo191 l C l B l@ lE l@ lB l@ l Vl Al Ll Vl El X]h l Cl@ l Al@
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| l 7
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| S 9
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| 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPCRT REVISION LE A RO EVENT YEAR REPORT NO.
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| CCOE TYPE N O.
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| @ sug I 71 91 l-l l Ol 51 Sl I/l l 013 l l_XJ l-l l ll aer 21 22 23 24 26 27 23 29 30 31 32 ANON T K N O P NT VET MCURS S8 e FOR 8.
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| SU #L E MANUF C RER l X l@l X l@
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| 33 34 35 36 31 40 41 42 43 44 47 I
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| CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i I a l l The cause of the valve malfunction was not identified.
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| At the time of the event, the l l
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| m Ivalve was rapped sharoly which freed it for operation.
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| The valve was ocened and in-I 1il2l lspected, but no specific cause for sticking was found. The valve and shaf t were l
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| l l1l l cleaned and lubricated. The valve is a Walworth 4 inch check valve, body Model WO8 l
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| 1iI4 i Iwith a R13 disc.
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| I 7
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| 8 9 90 STA
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| %PCWER CTHER STATUS 315 O RY DISCOVERY CESCRIPTICN l1 l 5 l l G l@ l0 l 0 l0 l@lN/A l
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| l3l@lOperatorObservation l
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| ACTIVITY CO TENT
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| *ELEASED
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| ^P RELEASE AMCUNT OF ACTIVITY LOCATION CP RELEASE li l6 l l Z j h lZ lgl N/A l
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| l N/A l
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| 7 3 9 to 11 44 45 80 PERSCNNEL EXPCSURES NUMBER TYPE D ESCRIPTION l i l 71 10101 O l@l Z l@l N/A l
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| ER$c~~EL % u'!,ES
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| '2 8
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| NUVeER CESCRIPTICN lt la l l 0 l 0 l 0 l@l N/A l
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| 7 8 9 11 12 80 LOSS OF CR DAMAGE TO FACILITY TY8E OESCRIPTION li 191 l Z l@l N/A l
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| 7 d 9 10 80 NRC USE CNLY ISSUE DE CRIPTION 1:101 l N @l N/A I
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| IIIIIIIIIIIIli
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| //
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| (303) 785-2253
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| }}
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| {{LER-Nav}}
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