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| {{Adams
| | #REDIRECT [[05000313/LER-1980-016-03, /03X-1:on 800611,during Hydrogen Purge Sys Surveillance Testing of Loop B,Proper Flow Through Sys Was Unobtainable.Caused by Lodging of Rust Scale in Hydrogen Check Valves HPA-4,HPA-10 & HPA-128.Valves Cleaned]] |
| | number = ML19345B503
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| | issue date = 11/21/1980
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| | title = Proper Flow Through Hydrogen Purge Sys Could Not Be Obtained.Caused by Rust Scale Being Lodged in Check Valves HPA-4,-10 & -128.Valves Cleaned.Svc Water Solenoid Valves Added to Ventilation Fans
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| | author name = Shively C
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| | author affiliation = ARKANSAS POWER & LIGHT CO.
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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 = 05000313
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| | license number =
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| | contact person =
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| | document report number = LER-80-016-03X, LER-80-16-3X, NUDOCS 8012010404
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| | package number = ML19345B499
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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
| |
| | Title = Proper Flow Through Hydrogen Purge Sys Could Not Be Obtained.Caused by Rust Scale Being Lodged in Check Valves HPA-4,-10 & -128.Valves Cleaned.Svc Water Solenoid Valves Added to Ventilation Fans
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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 = 05000313
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| | LER year = 1980
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| | LER number = 16
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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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| UPDATE REPORT - PREVIOUS REPORT DATE 8/27/80 Nmc FORM J64 U. S. NUCL E AM REGULATORY COMahSSION LICENSEE EVENT REPORT EXHIBIT A CONTROL SLOCK: l l l l l l (ptg Ast pMINT OR TvPE ALL REQUIRED tNFORMATIONI l AlR l Al Nl 0 l 1 lgln0 j0 l -l0 l0 l 0l q 0 l-l 0 l0 lgr$ l1 l 1;l l 1lgl p clat nalg o i 9
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| HE, ORT Daft 80 EVENT DESCRIPTION AND PROBASLE CONSEOUENCES h IDurino hvdrocen Durae system surveillance testing of Loop B per operating i o a ran tprocedure 1104.33 Supplement II, proper flow through the system was un-i ITT71 lable to be obtainec'. Hydrogen purge Loop A was verified operable per the i ilast surveillance test.
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| Similar to LER's 50-313/77-018, 79-001, 80-009. i o s tReportable per T.S. 6.12.3.2.(b).
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| CAUSE DESCR.PTION AND CORRECflVE ACTIONS h
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| Cuse of flow degradation was determined to be due to rust scale being i
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| , o m flodged in the following hydrogen purge check valves:
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| HPA-4, HPA-10, HPA,
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| 1128.
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| Valves were cleaned.
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| Source of moisture identified as Service Water, l
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| m 11eaking by seals on idle ventilation fans, VSF30A/B, VSF37A/B.
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| m IWater Solenoid Valves added, linked to fan geration.
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| NA i i i i iiiiiii w 2 a Chris N. Shively 5d1/968-2519 AM 0,,,,,,,g, 8012010 404
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| }}
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| {{LER-Nav}}
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