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LER 99-001-01:on 990222,deficiencies in NSSS vendor steam- line brake mass & energy release analysis results in plant being outside design bases occurred.Caused by deficiencies in W.Temporary administrative replaced.With 990621 ltr.

LER 99-001-01:on 990222,deficiencies in NSSS vendor steam- line brake mass & energy release analysis results in plant being outside design bases occurred.Caused by deficiencies in W.Temporary administrative replaced.With 990621 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/06/21.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-009-00:on 990503,instrumentation declared inoperable in multiple channels resulted in condition prohibited by TS. Caused by unanticipated high frequency AC voltage ripple. Entered TS LCO 3.0.3.With 990602 ltr.

LER 99-009-00:on 990503,instrumentation declared inoperable in multiple channels resulted in condition prohibited by TS. Caused by unanticipated high frequency AC voltage ripple. Entered TS LCO 3.0.3.With 990602 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/06/02.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-008-00:on 990427,overtemperature delta T reactor trip occurred due to faulted bistable during calibr of redundant channel.Plant was stabilized in mode 3 & faulted bistable was subsequently replaced.With 990527 ltr.

LER 99-008-00:on 990427,overtemperature delta T reactor trip occurred due to faulted bistable during calibr of redundant channel.Plant was stabilized in mode 3 & faulted bistable was subsequently replaced.With 990527 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/05/27.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-010-00:on 990615,ventilation isolation of auxiliary bldg occurred when auxiliary bldg gas radiation monitor R-14 reached high alarm setpoint.CR operators rest auxiliary bldg ventilation isolation signal.With 990715 ltr.

LER 99-010-00:on 990615,ventilation isolation of auxiliary bldg occurred when auxiliary bldg gas radiation monitor R-14 reached high alarm setpoint.CR operators rest auxiliary bldg ventilation isolation signal.With 990715 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/07/15.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-003-00:on 990301,two main steam non-return check valves were declared inoperable due to exceedance of acceptance criteria.Caused by changes in methodology & matls.Packing gland torque will be adjusted.With 990331 ltr.

LER 99-003-00:on 990301,two main steam non-return check valves were declared inoperable due to exceedance of acceptance criteria.Caused by changes in methodology & matls.Packing gland torque will be adjusted.With 990331 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/03/31.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-006-00:on 990421,start of turbine-driven auxiliary feedwater pump was noted.Caused by MOV being left in open position.Closed manual isolation valve to secure steam to pump.With 990521 ltr.

LER 99-006-00:on 990421,start of turbine-driven auxiliary feedwater pump was noted.Caused by MOV being left in open position.Closed manual isolation valve to secure steam to pump.With 990521 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/05/21.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-005-00:on 990413,undervoltage signal of safeguards bus during testing resulted in automatic start of "B" EDG. Caused by personnel error.Blown fuse was replaced & offsite power was restored to safeguards bus 17.With 990513 ltr.

LER 99-005-00:on 990413,undervoltage signal of safeguards bus during testing resulted in automatic start of "B" EDG. Caused by personnel error.Blown fuse was replaced & offsite power was restored to safeguards bus 17.With 990513 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/05/13.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 99-002-00:on 990227,discovered that surveillance had not been performed at frequency,per TS.Caused by personnel error.Procedure O-6.13 will be evaluated for enhancement documentation of completion of ITS SRs.With 990329 ltr.

LER 99-002-00:on 990227,discovered that surveillance had not been performed at frequency,per TS.Caused by personnel error.Procedure O-6.13 will be evaluated for enhancement documentation of completion of ITS SRs.With 990329 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1999/03/29.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 98-003-00:on 980904,actuations of CR emergency air treatment sys occurred.Caused by radon build-up during temp inversion.Air samples were taken & determined that source of radiation was naturally occurring radon.With 981005 ltr.

LER 98-003-00:on 980904,actuations of CR emergency air treatment sys occurred.Caused by radon build-up during temp inversion.Air samples were taken & determined that source of radiation was naturally occurring radon.With 981005 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1998/10/05.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 98-002-00:on 971019,CR emergency air treatment sys actuating function was not operable.Caused by mispositioned switch.Revised procedure CPI-MON-R37.W/980714 ltr.

LER 98-002-00:on 971019,CR emergency air treatment sys actuating function was not operable.Caused by mispositioned switch.Revised procedure CPI-MON-R37.W/980714 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1998/07/14.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 97-006-00:on 971103,NIS audible count rate function was inoperable.Caused by misinterpretation of event sequence due to not verifying boron concentration.B verification occurred every 12 h per ITS LCO action 3.9.2.C.3.W/971203 ltr.

LER 97-006-00:on 971103,NIS audible count rate function was inoperable.Caused by misinterpretation of event sequence due to not verifying boron concentration.B verification occurred every 12 h per ITS LCO action 3.9.2.C.3.W/971203 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1997/12/03.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 97-007-00:on 971117,NF low range trip circuitry for channel N-44 was not placed in tripped condition.Caused by technical inadequacies in procedures.Implemented EWR 4862 to resolve design deficiency.W/971217 ltr.

LER 97-007-00:on 971117,NF low range trip circuitry for channel N-44 was not placed in tripped condition.Caused by technical inadequacies in procedures.Implemented EWR 4862 to resolve design deficiency.W/971217 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1997/12/17.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 97-003-00:on 970730,high steam flow bistable instrument setpoint plus instrument uncertainty could exceed "allowable value" in ITS was identified.Caused by entry into ITS LCO 3.0.3.Switches placed in tripped configuration.W/970827 ltr.

LER 97-003-00:on 970730,high steam flow bistable instrument setpoint plus instrument uncertainty could exceed "allowable value" in ITS was identified.Caused by entry into ITS LCO 3.0.3.Switches placed in tripped configuration.W/970827 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1997/08/27.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 97-002-00:on 970720,34.5 KV offsite power circuit 751 was lost.Caused by automatic actuation of "B" emergency DG due to undervoltage on safeguards buses 16 & 17.Offsite power restored to safeguards buses 16 & 17.W/970819 ltr.

LER 97-002-00:on 970720,34.5 KV offsite power circuit 751 was lost.Caused by automatic actuation of "B" emergency DG due to undervoltage on safeguards buses 16 & 17.Offsite power restored to safeguards buses 16 & 17.W/970819 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1997/08/19.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-012-00:on 960820,feedwater transient occurred,due to closure of feedwater regulating valve,causing lo lo steam generator level reactor trip.SGs were restored & missing screw in 1/P-476 was replaced.W/960919 ltr.

LER 96-012-00:on 960820,feedwater transient occurred,due to closure of feedwater regulating valve,causing lo lo steam generator level reactor trip.SGs were restored & missing screw in 1/P-476 was replaced.W/960919 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1996/09/19.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-015-00:on 961223,discovered thermally induced overpressure transient could occur.Caused by thermal expansion of fluid during design basis accident condition. Installed relief valve on affected line.W/970122 ltr.

LER 96-015-00:on 961223,discovered thermally induced overpressure transient could occur.Caused by thermal expansion of fluid during design basis accident condition. Installed relief valve on affected line.W/970122 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1997/01/22.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-006-00:on 960521,discovered containment penetration not in required status.Caused by personnel error.Installed flange inside containment penetration 2.W/960620 ltr.

LER 96-006-00:on 960521,discovered containment penetration not in required status.Caused by personnel error.Installed flange inside containment penetration 2.W/960620 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1996/06/20.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-009-01:on 960723,leakage outside containment occurred,due to weld defect,resulting in leak rate greater than program limits.Source of leakage isolated from RWST by freeze seal,allowing exit from ITS LCO 3.0.3.W/960919 ltr.

LER 96-009-01:on 960723,leakage outside containment occurred,due to weld defect,resulting in leak rate greater than program limits.Source of leakage isolated from RWST by freeze seal,allowing exit from ITS LCO 3.0.3.W/960919 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1996/09/19.
全国の図書館
  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-004-00:on 960309,decrease in steam generator level occurred.Caused by failed open atmospheric relief valves. Booster relay replaced.W/960408 ltr.

LER 96-004-00:on 960309,decrease in steam generator level occurred.Caused by failed open atmospheric relief valves. Booster relay replaced.W/960408 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1996/04/08.
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  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.

LER 96-005-00:on 960516,PORC determined deficient procedures do not meet SRs for testing safety-related logic circuits. Caused by inadequancies in individual testing procedures. Procedures re Improved TSs revised.W/960617 ltr.

LER 96-005-00:on 960516,PORC determined deficient procedures do not meet SRs for testing safety-related logic circuits. Caused by inadequancies in individual testing procedures. Procedures re Improved TSs revised.W/960617 ltr.
紙図書
MECREDY, R. C.//ST, MARTIN. J. T.ROCHESTER GAS & ELECTRIC CORP.1996/06/17.
全国の図書館
  • 著者標目MECREDY, R. C.//ST, MARTIN. J. T.
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