LER-1980-040, /01T-0:on 801226,removable Instrument Assembly 40 Count Rate Increased,Apparently Due to Leak in once-through Steam Generator Tube.Caused by High Cycle Fatigue.Tube Replaced.Leak Procedure Implemented |
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| 2691980040R01 - NRC Website |
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M i on December 26, 1980, the RIA-40 count rata increased apparently because of g
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The unit was operated with the leak until February 8, 1981.,
io 1 1 I i $-@b l a rov ennducted on Februarv 11. 1981, found tube 78-2 to have a throuch E I v,11 teidication.
Nocontaminatedliquidsbeyond10CFR20jimitswerere-IT>m I teased to the environment. Gaseous activity was below Technical Specification,
lo irl 1 timits. Fience, the health and safety of the public were not affected.
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n CAuss t(SC.9 PTICN AMC CoMM(c"nVE AC"1Cr43 rf g i Tha robe leak was nossibly caused by high cycle fatigue. Upon discovering WI the leak a procedure, " Control of Secondary Side Contamination" was implementeq d i Unit reactor power was reduced to keep leakaze rate below 0.20 gpm.
The lane mI racinn was Eddv Current tested. Tube 78-2 was removed from service.
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| 05000270/LER-1980-003-01, /01T-0:on 800507,deborating Demineralizer Was Placed in Svc While Plant in Cold Shutdown & RCS Drained Down.Rcs Boron Concentration Reduced from 1,895 Ppm to 1,539 Ppm.Apparently Caused by Incorrect Chemistry Records | /01T-0:on 800507,deborating Demineralizer Was Placed in Svc While Plant in Cold Shutdown & RCS Drained Down.Rcs Boron Concentration Reduced from 1,895 Ppm to 1,539 Ppm.Apparently Caused by Incorrect Chemistry Records | | | 05000270/LER-1980-003, Forwards LER 80-003/01T-0 | Forwards LER 80-003/01T-0 | | | 05000270/LER-1980-006-03, /03L-0:on 800625,at 40% Full Power,Valve 2LP21 Failed to Open Electrically on Command.Caused by Loose Setscrew on Motor Driven Pinion.Screw Repaired | /03L-0:on 800625,at 40% Full Power,Valve 2LP21 Failed to Open Electrically on Command.Caused by Loose Setscrew on Motor Driven Pinion.Screw Repaired | | | 05000270/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | | | 05000259/LER-1980-009, Has Been Cancelled | Has Been Cancelled | | | 05000270/LER-1980-014, Forwards LER 80-014/03L-0 | Forwards LER 80-014/03L-0 | | | 05000270/LER-1980-014-03, /03L-0:on 800822,concentrated Boric Acid Storage Tank Pump Removed from Svc Due to Oil & Flange Leaks.Caused by Torn Oil Seal,Worn Worm Gear,Bad Flange Gasket & Stuck Pressure Relief Valve.Items Replaced | /03L-0:on 800822,concentrated Boric Acid Storage Tank Pump Removed from Svc Due to Oil & Flange Leaks.Caused by Torn Oil Seal,Worn Worm Gear,Bad Flange Gasket & Stuck Pressure Relief Valve.Items Replaced | | | 05000270/LER-1980-015, Forwards LER 80-015/03L-0 | Forwards LER 80-015/03L-0 | | | 05000270/LER-1980-015-03, /03L-0:on 800916,valve 2LP21 Failed to Open During Performance of Engineered Safeguard Channel Test.Caused by Loose Setscrew on Motor Driven Pinion.Screw Repaired | /03L-0:on 800916,valve 2LP21 Failed to Open During Performance of Engineered Safeguard Channel Test.Caused by Loose Setscrew on Motor Driven Pinion.Screw Repaired | | | 05000287/LER-1980-016-03, /03L-1:on 801123,fire Detectors String B-2 Went Into Alarm Condition.Caused by Dust Buildup in Detector. Detector Cleaned & Verified Operable | /03L-1:on 801123,fire Detectors String B-2 Went Into Alarm Condition.Caused by Dust Buildup in Detector. 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