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LER 99-008-00:on 990604,discovered that air flow through each of RB fan cooler units was below design basis requirement.Caused by accumulation of boric acid from RC leakage.Normal cooling coils have been cleaned.

LER 99-008-00:on 990604,discovered that air flow through each of RB fan cooler units was below design basis requirement.Caused by accumulation of boric acid from RC leakage.Normal cooling coils have been cleaned.
Paper図書
KNIGHT, M. R.GENERAL PUBLIC UTILITIES CORP.1999/07/02.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.

LER 98-004-00:on 980218,loss of CS capability was noted. Caused by improper assembly of RBS pump discharge valve control switch pushbutton.Pushbutton switch was replaced w/new properly assembled pushbutton switch.

LER 98-004-00:on 980218,loss of CS capability was noted. Caused by improper assembly of RBS pump discharge valve control switch pushbutton.Pushbutton switch was replaced w/new properly assembled pushbutton switch.
Paper図書
KNIGHT, M. R.GENERAL PUBLIC UTILITIES CORP.1998/03/20.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.

LER 96-002-01:on 961221,potential loss of ECCS pump suction in accident analysis was noted due to failure to recognize effect of lower RB pressure.Changed procedures & trained operators to initiate swapover at different setpoint.

LER 96-002-01:on 961221,potential loss of ECCS pump suction in accident analysis was noted due to failure to recognize effect of lower RB pressure.Changed procedures & trained operators to initiate swapover at different setpoint.
Paper図書
KNIGHT, M. R.GENERAL PUBLIC UTILITIES CORP.1997/12/11.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.

LER 98-001-00:on 980122,failure to operate & maintain flow instruments within design basis occurred.Caused by improper application of stds for resolution of degraded or non- conforming conditions.Operators trained.

LER 98-001-00:on 980122,failure to operate & maintain flow instruments within design basis occurred.Caused by improper application of stds for resolution of degraded or non- conforming conditions.Operators trained.
Paper図書
KNIGHT, M. R.GENERAL PUBLIC UTILITIES CORP.1998/02/23.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.

LER 95-001-00:on 950307,RC leak caused by failure of parker Hannifin compression fitting due to insufficient tightening during installation.Shut root valves & stopped leak.

LER 95-001-00:on 950307,RC leak caused by failure of parker Hannifin compression fitting due to insufficient tightening during installation.Shut root valves & stopped leak.
Paper図書
KNIGHT, M. R.GENERAL PUBLIC UTILITIES CORP.1995/04/06.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.

LER 97-001-00:on 970117,potential overpressurization of piping between closed reactor building isolation valves occurred due to inadequate design code guidance.Results of this review will be documented.W/970217 ltr.

LER 97-001-00:on 970117,potential overpressurization of piping between closed reactor building isolation valves occurred due to inadequate design code guidance.Results of this review will be documented.W/970217 ltr.
Paper図書
KNIGHT, M. R.//KNUBEL, J.GENERAL PUBLIC UTILITIES CORP.1997/02/17.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.//KNUBEL, J.

LER 96-002-00:on 961221,discovered use of non-conservative setpoint may result in air entrainment in ECCS Pumps.Caused by personnel error.Revised procedures & briefed personnel on air entrainment concerns.W/970120 ltr.

LER 96-002-00:on 961221,discovered use of non-conservative setpoint may result in air entrainment in ECCS Pumps.Caused by personnel error.Revised procedures & briefed personnel on air entrainment concerns.W/970120 ltr.
Paper図書
KNIGHT, M. R.//KNUBEL, J.GENERAL PUBLIC UTILITIES CORP.1997/01/20.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.//KNUBEL, J.

LER 97-005-00:on 970410,declared motor-operated Reactor Bldg Purge valves inoperable due to inadequate closing torque. Caused by deficient design analysis.Will perform evaluation of valve specific seating torque test data.W/970512 ltr.

LER 97-005-00:on 970410,declared motor-operated Reactor Bldg Purge valves inoperable due to inadequate closing torque. Caused by deficient design analysis.Will perform evaluation of valve specific seating torque test data.W/970512 ltr.
Paper図書
KNIGHT, M. R.//LANGENBACH, J. W.GENERAL PUBLIC UTILITIES CORP.1997/05/12.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.//LANGENBACH, J. W.

LER 97-002-00:on 970129,potential inability of startup feedwater block valves to fully close following main steam line break occurred due to MOV program weakness.Increased torque switch settings on valve operators.W/970228 ltr.

LER 97-002-00:on 970129,potential inability of startup feedwater block valves to fully close following main steam line break occurred due to MOV program weakness.Increased torque switch settings on valve operators.W/970228 ltr.
Paper図書
KNIGHT, M. R.//ROSS, M. J.GENERAL PUBLIC UTILITIES CORP.1997/02/28.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.//ROSS, M. J.

LER 95-003-00:on 950909,reactor coolant leak occurred due to crack weld in cold leg drain line.Failed line replaced.W/ 951009 ltr.

LER 95-003-00:on 950909,reactor coolant leak occurred due to crack weld in cold leg drain line.Failed line replaced.W/ 951009 ltr.
Paper図書
KNIGHT, M. R.//KNUBEL, J.GENERAL PUBLIC UTILITIES CORP.1995/10/09.
Other Libraries in Japan
  • Author HeadingKNIGHT, M. R.//KNUBEL, J.

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