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| {{Adams
| | #REDIRECT [[05000368/LER-1980-022-03, Steam Driven Emergency Feedwater pump,2P7A,turbine driver,2K3,tripped on Overspeed Upon Receipt of Low Steam Generator Level Signal.Caused by Design Deficiency.Governor Valve Control Modified]] |
| | number = ML19316A754
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| | issue date = 05/20/1980
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| | title = /03L-0:on 800424,immediately Following Plant Trip, Emergency Feedwater Pump Turbine 2K3 for Pump 2P7A Tripped on Overspeed.Caused by Low Steam Generator Level.Root Cause Is Being Investigated.Water Drained from Turbine Casing
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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 = 05000368
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| | license number =
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| | contact person =
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| | document report number = LER-80-022-03L, LER-80-22-3L, NUDOCS 8005270459
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| | package number = ML19316A753
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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 = /03L-0:on 800424,immediately Following Plant Trip, Emergency Feedwater Pump Turbine 2K3 for Pump 2P7A Tripped on Overspeed.Caused by Low Steam Generator Level.Root Cause Is Being Investigated.Water Drained from Turbine Casing
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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 = 05000368
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| | LER year = 1980
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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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| HF,oHYDait 80 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l Inunediately following a plant trip, the Emergency Feedwater Pump turbine i fBTr1 i (2K3) for pump 2P7A tripped on overspeed upon receipt of ESFAS due to lowi I steam generator level.
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| The electric driven EFW pump, 2P7B, and associated o.
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| iois,i valves were operable and supplied sufficient flow for the transient i
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| o. i response.
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| The overspeed trip was reset and the pump was successfully i
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| istarted three times then declared operable. This occurrence is similar i
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| i o n i i to 50-368/79-055, 79-072, 79-031 & 79-104.
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| CAUSE OESCR.PTION AND CORRECflVE ACTIONS h li io t 1 The root cause of the occurrence is beina investicated.
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| An interim i
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| w I corrective action has been to manually start the EFW pump once every
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| , 2 1 4 hours.
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| Successful starts have been completed with the exception of i
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| m Ion 4/26/80 and 4/27/80. Water was drained from the turbine casing and i
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| ,o Naut OP PREPARER Chris N. Shively
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| ,,,y, 8006270 Y
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| }}
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| {{LER-Nav}}
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