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LER 98-013-01:on 981105,safety valve rupture disks may induce excessive eccentric loading of pressurizer vessel nozzles.Caused by failure of RCS pressure boundary.Plant mod was implemented in May of 1999.With 990624 ltr.

LER 98-013-01:on 981105,safety valve rupture disks may induce excessive eccentric loading of pressurizer vessel nozzles.Caused by failure of RCS pressure boundary.Plant mod was implemented in May of 1999.With 990624 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1999/06/24.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 99-002-00:on 990208,both trains of emergency ventilation sys were rendered inoperable.Caused by unattended open door. Door was immediately closed upon discovery.With 990305 ltr.

LER 99-002-00:on 990208,both trains of emergency ventilation sys were rendered inoperable.Caused by unattended open door. Door was immediately closed upon discovery.With 990305 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1999/03/05.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 98-010-01:on 980924,manual RT was noted.Caused by misdiagnosis of FW control valve solenoid valve failure. Replaced failed solenoid valve.With 990211 ltr.

LER 98-010-01:on 980924,manual RT was noted.Caused by misdiagnosis of FW control valve solenoid valve failure. Replaced failed solenoid valve.With 990211 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1999/02/11.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 98-013-00:on 981105,SV rupture disks induce excessive eccentric loading of PV nozzles.Caused by errors made in assumptions used to simplify evaluation of configuration. Four SV rupture disks were disabled.With 981206 ltr.

LER 98-013-00:on 981105,SV rupture disks induce excessive eccentric loading of PV nozzles.Caused by errors made in assumptions used to simplify evaluation of configuration. Four SV rupture disks were disabled.With 981206 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/12/06.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 98-007-00:on 980824,CR humidifier ductwork failure caused excessive opening in positive pressure boundary. Caused by less than adequate fabrication.Evaluation of CR humidifiers conducted.With 980922 ltr.

LER 98-007-00:on 980824,CR humidifier ductwork failure caused excessive opening in positive pressure boundary. Caused by less than adequate fabrication.Evaluation of CR humidifiers conducted.With 980922 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/09/22.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 98-010-00:on 980924,manual reactor trip was noted.Caused by misdiagnosed failure of main FW control valve solenoid valve.Faulty solenoid valve,SVSP6B1,was replaced & tested. With 981026 ltr.

LER 98-010-00:on 980924,manual reactor trip was noted.Caused by misdiagnosed failure of main FW control valve solenoid valve.Faulty solenoid valve,SVSP6B1,was replaced & tested. With 981026 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/10/26.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-015-00:on 971212,discovered that EDG tachometer circuit was outside of 10CFR50 App R design basis.Caused by inadequate development & review of Mod 84-0183.Hourly fire watch established & mod to EDG tachometer made.W/980112 ltr.

LER 97-015-00:on 971212,discovered that EDG tachometer circuit was outside of 10CFR50 App R design basis.Caused by inadequate development & review of Mod 84-0183.Hourly fire watch established & mod to EDG tachometer made.W/980112 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/01/12.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-014-00:on 970801,pressurizer PORV setpoint was less than allowable value.Caused by degraded wire splice.Wire containing faulty splice was replaced.W/971129 ltr.

LER 97-014-00:on 970801,pressurizer PORV setpoint was less than allowable value.Caused by degraded wire splice.Wire containing faulty splice was replaced.W/971129 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1997/11/26.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-011-00:on 970825,emergency ventilation sys rendered inoperable by maint on room isolation valve occurred.Caused by misinterpretation of Tech Spec.Preventive maint activities revised.W/971002 ltr.

LER 97-011-00:on 970825,emergency ventilation sys rendered inoperable by maint on room isolation valve occurred.Caused by misinterpretation of Tech Spec.Preventive maint activities revised.W/971002 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/10/02.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-11:on 970318,inadequate testing of safety related logic were noted.Caused by personnel error.Test was performed & completed satisfactorily.W/980312 ltr.

LER 97-008-11:on 970318,inadequate testing of safety related logic were noted.Caused by personnel error.Test was performed & completed satisfactorily.W/980312 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/03/12.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-009-02:on 970331,setpoints specified in Table 3.3-4 were not verified during monthly test.Caused by failure to comprehend requirements for monthly testing.Sequence logic channels testing was initiated on discovery.W/980206 ltr.

LER 97-009-02:on 970331,setpoints specified in Table 3.3-4 were not verified during monthly test.Caused by failure to comprehend requirements for monthly testing.Sequence logic channels testing was initiated on discovery.W/980206 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1998/02/06.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 98-001-00:on 980407,main steam safety valves setpoints were outside of TS allowable values.Cause will be investigated.Setpoint of valve adjusted to be within allowable value.

LER 98-001-00:on 980407,main steam safety valves setpoints were outside of TS allowable values.Cause will be investigated.Setpoint of valve adjusted to be within allowable value.
Paper図書
LASH, J. H.//WOLF, G. M.WISCONSIN ELECTRIC POWER CO.1998/05/06.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-07:on 970318,inadequate testing of safety related logic was noted.Caused by failure to fulfill TS of SR. Performed & satisfactorily completed 18 month surveillance test DB-SC-0315 w/no equipment deficiences.W/971120 ltr.

LER 97-008-07:on 970318,inadequate testing of safety related logic was noted.Caused by failure to fulfill TS of SR. Performed & satisfactorily completed 18 month surveillance test DB-SC-0315 w/no equipment deficiences.W/971120 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1997/11/20.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-06:on 970318,inadequate testing of safety related logic was noted.Caused by failure to fulfill TS of SR.Review of safety related logic circuits as required by GL 96-01 is ongoing.W/971106 ltr.

LER 97-008-06:on 970318,inadequate testing of safety related logic was noted.Caused by failure to fulfill TS of SR.Review of safety related logic circuits as required by GL 96-01 is ongoing.W/971106 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.CENTERIOR ENERGY1997/11/06.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-01:on 961113,switchboard circuit was declared inoperable due to switchyard breaker alignment.Caused by misunderstanding of design.Standing Order was issued on 961121 to provide guidance for entering TS.W/970731 ltr.

LER 97-008-01:on 961113,switchboard circuit was declared inoperable due to switchyard breaker alignment.Caused by misunderstanding of design.Standing Order was issued on 961121 to provide guidance for entering TS.W/970731 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/07/31.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-007-01:on 970305,determined that acceptance criteria of surveillance test to measure leakage into DH valve pit potentially non-conservative.Caused by human error. Surveillance test revised.W/970620 ltr.

LER 97-007-01:on 970305,determined that acceptance criteria of surveillance test to measure leakage into DH valve pit potentially non-conservative.Caused by human error. Surveillance test revised.W/970620 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/06/20.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-01:on 970318,inadequate testing of safety related logic was identified.Caused because Surveillance Test review process was not detailed enough to ensure that all functions were being addressed.Test was performed.W/970502 ltr.

LER 97-008-01:on 970318,inadequate testing of safety related logic was identified.Caused because Surveillance Test review process was not detailed enough to ensure that all functions were being addressed.Test was performed.W/970502 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/05/02.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-006-00:on 970225,both containment radiation monitors were found to be missing gaskets on particulate filter & iodine cartridge holders.Caused by lack of procedural guidance.Missing gaskets were replaced.W/970327 ltr.

LER 97-006-00:on 970225,both containment radiation monitors were found to be missing gaskets on particulate filter & iodine cartridge holders.Caused by lack of procedural guidance.Missing gaskets were replaced.W/970327 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/03/27.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-04:on 970318,inadequate testing of safety related logic occurred.Caused by procedure inadequacy.Surveillance test performed.W/970620 ltr.

LER 97-008-04:on 970318,inadequate testing of safety related logic occurred.Caused by procedure inadequacy.Surveillance test performed.W/970620 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/06/20.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.

LER 97-008-02:on 970318,performed inadequate testing of SR logic.Caused by personnel error failing to fully understand TS SRs for channel functional test.Performed 18 month surveillance test.W/970610 ltr.

LER 97-008-02:on 970318,performed inadequate testing of SR logic.Caused by personnel error failing to fully understand TS SRs for channel functional test.Performed 18 month surveillance test.W/970610 ltr.
Paper図書
LASH, J. H.//WOLF, G. M.TOLEDO EDISON CO.1997/06/10.
Other Libraries in Japan
  • Author HeadingLASH, J. H.//WOLF, G. M.
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