05000000/LER-1983-001-01, /01T-0:on 830204,Exxon ECCS Analysis Error Discovered.Caused by Input Error Into Codes

/01T-0:on 830204,Exxon ECCS Analysis Error Discovered.Caused by Input Error Into Codes

ML20090H070
Person / Time
Site:	05000000, Prairie Island
Issue date:	02/18/1983
From:	Hunstad A, Musolf D NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20090H032	List: 05000000/LER-1982-023-03, /03L-0:on 821121,containment Pressure Sensing Line Found Capped.Caused by Personnel Error.Units Will Be Labeled 05000000/LER-1982-026-03, /03L-0:on 821115,turbine Driven Auxiliary Feedwater Pump 11 Failed to Deliver Full Flow of 200 Gpm to Steam Generators.Caused by Unscrewed Governor Valve.Valve Seat Reinstalled & Staked in Position 05000000/LER-1983-001-01, /01T-0:on 830204,Exxon ECCS Analysis Error Discovered.Caused by Input Error Into Codes 05000000/LER-1983-002-01, /01T-0:on 830405,spent Fuel Assembly X-13 Dropped Back Into Rack from Fully Lifted Position.Caused by Cable Stress Due to Limit Switch Failure.Insp for Cladding Damage Will Be Conducted 05000000/LER-1983-007-03, /03L-0:on 830330,steam Line Radiation Monitors Discovered Inoperable.Monitors Repaired & Surveillance Procedure Revised to Include Daily Check 05000000/LER-1983-008-03, /03L-0:on 830410,right Hand Stop Valve Failed. Caused by Separation of Valve Disc from Clapper Arm Disc. Valve Repaired & Will Be Replaced at Next Refueling Outage. Left Hand Stop Valve Also Inspected 05000000/LER-1983-011-03, /03L-0:on 830510,diesel Generator D2 Tripped. Caused by Drift in Dryer Pressure Switch Model 1822.1. Switch Recalibr
References
FOIA-83-546 LER-83-001-01T-01, LER-83-1-1T-1, NUDOCS 8310270421
Download: ML20090H070 (3)

LER-1983-001, /01T-0:on 830204,Exxon ECCS Analysis Error Discovered.Caused by Input Error Into Codes

Event date:
Report date:
0001983001R01 - NRC Website

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