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LER 94-018-02:on 940820,RCICS trip occurred.Caused by personnel error.AC motor operator on RCIC-MOV-MO14 valve replaced w/DC operator.W/950731 ltr.

LER 94-018-02:on 940820,RCICS trip occurred.Caused by personnel error.AC motor operator on RCIC-MOV-MO14 valve replaced w/DC operator.W/950731 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1995/07/31.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 95-015-00:on 951026,"F" Bus was transferred to emergency transformer due to error committed by engineer in providing test instructions in MWR 95-2599.Counseled engineer that prepared MWR 95-2599.W/951127 ltr.

LER 95-015-00:on 951026,"F" Bus was transferred to emergency transformer due to error committed by engineer in providing test instructions in MWR 95-2599.Counseled engineer that prepared MWR 95-2599.W/951127 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1995/11/27.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-018-01:on 940820,discovered RCIC sys trip & throttle valve design deficiency due to reset motor being powered by ac instead of dc.AC motor operator on RCIC-MOV-MO14 valve replaced w/dc motor operator on 941222.W/941223 ltr.

LER 94-018-01:on 940820,discovered RCIC sys trip & throttle valve design deficiency due to reset motor being powered by ac instead of dc.AC motor operator on RCIC-MOV-MO14 valve replaced w/dc motor operator on 941222.W/941223 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1994/12/23.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-027-00:on 941116,non-environmentally qualified relay, MS-REL-52XCP discovered.Root cause of event still under investigation & will be detailed in suppl to LER.Suppl will also specify corrective actions.W/941215 ltr.

LER 94-027-00:on 941116,non-environmentally qualified relay, MS-REL-52XCP discovered.Root cause of event still under investigation & will be detailed in suppl to LER.Suppl will also specify corrective actions.W/941215 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1994/12/15.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-034-01:on 941112,emergency lighting sys could not be assured of meeting 8 h operation requirement due to design & maint deficiencies.Replaced emergency lighting batteries, lamps & battery charger.W/950208 ltr.

LER 94-034-01:on 941112,emergency lighting sys could not be assured of meeting 8 h operation requirement due to design & maint deficiencies.Replaced emergency lighting batteries, lamps & battery charger.W/950208 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1995/02/08.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 95-007-00:on 950224,iodine channel of CR air sampling monitor failed to meet calibration tolerance.Caused by inadequate procedure.Channel recalibrated & monitors declared operable.W/950323 ltr.

LER 95-007-00:on 950224,iodine channel of CR air sampling monitor failed to meet calibration tolerance.Caused by inadequate procedure.Channel recalibrated & monitors declared operable.W/950323 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1995/03/23.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-027-01:on 941116,non-environmentally qualified relay, MS-REL-52XCP discovered.Caused by inadequate procedure to ensure proper identification & classification of component. Unqualified relay MS-REL-52XCP replaced.W/941223 ltr.

LER 94-027-01:on 941116,non-environmentally qualified relay, MS-REL-52XCP discovered.Caused by inadequate procedure to ensure proper identification & classification of component. Unqualified relay MS-REL-52XCP replaced.W/941223 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1994/12/23.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-035-00:on 941229,determined that SBGTS operability could not be assured due to potential backflow of water from Z sump under design basis accident conditions.Caused by design error.Applicable procedures reviewed.W/950126 ltr.

LER 94-035-00:on 941229,determined that SBGTS operability could not be assured due to potential backflow of water from Z sump under design basis accident conditions.Caused by design error.Applicable procedures reviewed.W/950126 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1995/01/26.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-010-00:on 940526,closure of shutdown cooling suction isolation valves while warming RHR sys due to leakage through minimum flow valve.SR MOV will be checked for torque-in current during MOV surveillance.W/941114 ltr.

LER 94-010-00:on 940526,closure of shutdown cooling suction isolation valves while warming RHR sys due to leakage through minimum flow valve.SR MOV will be checked for torque-in current during MOV surveillance.W/941114 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1994/11/14.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

LER 94-024-00:on 941002,inoperable condition of Halon sys in svc water pump room identified.Caused by inadequate procedures.Procedure 0.39, "Fire Watch" will be revised.W/ 941031 ltr.

LER 94-024-00:on 941002,inoperable condition of Halon sys in svc water pump room identified.Caused by inadequate procedures.Procedure 0.39, "Fire Watch" will be revised.W/ 941031 ltr.
Paper図書
HERRON, J. T.//SEN, G.NEBRASKA PUBLIC POWER DISTRICT1994/10/31.
Other Libraries in Japan
  • Author HeadingHERRON, J. T.//SEN, G.

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