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LER 96-044-01:on 960607,high range stack noble gas monitor inoperable due to inadequate calibration.High range stack noble gas monitor instrument response time has been verified & will be calibrated.W/960829 ltr.

LER 96-044-01:on 960607,high range stack noble gas monitor inoperable due to inadequate calibration.High range stack noble gas monitor instrument response time has been verified & will be calibrated.W/960829 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/08/29.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-035-01:on 960506,determined plud leaking by capillary action.Caused by IGSCC.Two degraded gamma plugs will be repaired by weld overlay IAW/ASME Code Case N-504,prior to startup for operating cycle 16.W/960820 ltr.

LER 96-035-01:on 960506,determined plud leaking by capillary action.Caused by IGSCC.Two degraded gamma plugs will be repaired by weld overlay IAW/ASME Code Case N-504,prior to startup for operating cycle 16.W/960820 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/08/20.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-043-00:on 960605,discovered inadequate instrument calibrs.Caused by personnel error.Util will implement TS change to require response time testing of instruments credited in accident analysis.W/960703 ltr.

LER 96-043-00:on 960605,discovered inadequate instrument calibrs.Caused by personnel error.Util will implement TS change to require response time testing of instruments credited in accident analysis.W/960703 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.1996/07/03.
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  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-035-00:on 960506,leaking gamma-radiography access port plug in low pressure coolant injection sys piping identified.Cause believed to be IGSCC.Inspected plugs & repairs performed.W/960605 ltr.

LER 96-035-00:on 960506,leaking gamma-radiography access port plug in low pressure coolant injection sys piping identified.Cause believed to be IGSCC.Inspected plugs & repairs performed.W/960605 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/06/05.
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  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-050-00:on 960912,LOCA concurrent with LNP & loss of DC power prevents closure of LPCI torus test return valves occurred.Caused by LOCA analysis not considering limiting single failure.Procedures will be revised.W/961010 ltr.

LER 96-050-00:on 960912,LOCA concurrent with LNP & loss of DC power prevents closure of LPCI torus test return valves occurred.Caused by LOCA analysis not considering limiting single failure.Procedures will be revised.W/961010 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/10/10.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-039-01:on 960604,in-service testing of valves not performed in accordance with program & ASME code requirements.Caused by personnel error.Quarterly surveillance procedure has been revised.W/961001 ltr.

LER 96-039-01:on 960604,in-service testing of valves not performed in accordance with program & ASME code requirements.Caused by personnel error.Quarterly surveillance procedure has been revised.W/961001 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/10/01.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-021-00:on 960227,ATWS sys inoperable due to failure to test voltage limiting circuit relays.Caused by improper implementation of plant design mod.C/A:relay replaced & ATWS section added to TRM.W/960326 ltr.

LER 96-021-00:on 960227,ATWS sys inoperable due to failure to test voltage limiting circuit relays.Caused by improper implementation of plant design mod.C/A:relay replaced & ATWS section added to TRM.W/960326 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/03/26.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-051-00:on 960913,seismic qualification deficiencies found in SR piping.Caused by original plant design deficiency.Util implemented mods to restore each identified piping sys to design basis requirements.W/961011 ltr.

LER 96-051-00:on 960913,seismic qualification deficiencies found in SR piping.Caused by original plant design deficiency.Util implemented mods to restore each identified piping sys to design basis requirements.W/961011 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.1996/10/11.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 92-028-01:on 921203,reactor scram occurred during performance of routine surveillance test due to inadvertent MSIV switch closure.Individual operator involved in incident counseled.W/960820 ltr.

LER 92-028-01:on 921203,reactor scram occurred during performance of routine surveillance test due to inadvertent MSIV switch closure.Individual operator involved in incident counseled.W/960820 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/08/20.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-039-00:on 960604,determined that IST of valves inadequate due to personnel error.Force gauge testing performed during RFO 15 on valves 1-AC-2A & 1-AC-2B determined to be adequate & valves deemed operable.

LER 96-039-00:on 960604,determined that IST of valves inadequate due to personnel error.Force gauge testing performed during RFO 15 on valves 1-AC-2A & 1-AC-2B determined to be adequate & valves deemed operable.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/07/03.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-027-01:on 960328,bolting materials used in certain containment boundary components did not meet original design specifications.Caused by personnel error.Containment bolted closures will be removed.W/960920 ltr.

LER 96-027-01:on 960328,bolting materials used in certain containment boundary components did not meet original design specifications.Caused by personnel error.Containment bolted closures will be removed.W/960920 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/09/20.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-030-01:on 960417,radiation monitoring sys detector cables did not meet physical separation criterion of design basis.Caused by inadequate plant design mods.Separated RB & steam tunnel ventilation RM detector cables.W/960731 ltr.

LER 96-030-01:on 960417,radiation monitoring sys detector cables did not meet physical separation criterion of design basis.Caused by inadequate plant design mods.Separated RB & steam tunnel ventilation RM detector cables.W/960731 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/07/31.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-029-00:on 960611,determined that in-service test testing of core spray sys was inadequate.Caused by failure of configuration mgt & design control process.Revised design control manual re configuration control.W/960710 ltr.

LER 96-029-00:on 960611,determined that in-service test testing of core spray sys was inadequate.Caused by failure of configuration mgt & design control process.Revised design control manual re configuration control.W/960710 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/07/10.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 92-001-02:on 920127,isolation signal to 2 of 4 RB Ventilation isolation dampers was defeated by opening SBGT. Caused by inadequate design of original isolation for RB ventilation dampers.SBGT sys procedure revised.W/960815 ltr.

LER 92-001-02:on 920127,isolation signal to 2 of 4 RB Ventilation isolation dampers was defeated by opening SBGT. Caused by inadequate design of original isolation for RB ventilation dampers.SBGT sys procedure revised.W/960815 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/08/15.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-031-00:on 960425,ADS fuses improperly installed. Caused by lack of adequate procedural guidance for application & replacement of fuses in plant equipment.Fuses will be replaced.W/960523 ltr.

LER 96-031-00:on 960425,ADS fuses improperly installed. Caused by lack of adequate procedural guidance for application & replacement of fuses in plant equipment.Fuses will be replaced.W/960523 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/05/23.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-041-00:on 960608,deviated from Tech Spec by securing standby gas treatment sys & running reactor bldg ventilation.Caused by improper guidance & training.Discussed event w/Shift managers & Unit Supervisors.W/960708 ltr.

LER 96-041-00:on 960608,deviated from Tech Spec by securing standby gas treatment sys & running reactor bldg ventilation.Caused by improper guidance & training.Discussed event w/Shift managers & Unit Supervisors.W/960708 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/07/08.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-014-00:on 960208,determined that ultrasonic exam performed on reactor recirculation sys weldolets inadequate. Caused by failure to incorporate plant design data into field insp techniques.ISIs performed.W/960309 ltr.

LER 96-014-00:on 960208,determined that ultrasonic exam performed on reactor recirculation sys weldolets inadequate. Caused by failure to incorporate plant design data into field insp techniques.ISIs performed.W/960309 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.1996/03/09.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-048-00:on 960816,RPS logic circuit testing questions identified by Generic ltr 96-01 review team.Results & conclusions of ongoing investigation into condition will be provided in suppl rept.W/960916 ltr.

LER 96-048-00:on 960816,RPS logic circuit testing questions identified by Generic ltr 96-01 review team.Results & conclusions of ongoing investigation into condition will be provided in suppl rept.W/960916 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/09/16.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-008-00:on 960125,ATWS low-water setpoints found outside of design basis limit.Caused by failure to recognize correlation between changes in fuel & effect on various sys setpoints in plant.Setpoint adjusted.W/960226 ltr.

LER 96-008-00:on 960125,ATWS low-water setpoints found outside of design basis limit.Caused by failure to recognize correlation between changes in fuel & effect on various sys setpoints in plant.Setpoint adjusted.W/960226 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.1996/02/23.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.

LER 96-042-00:on 960610,missed surveillance of stack gas sample flow occurred.Caused by personnel error.Approved & issued Rev 9 to Surveillance Procedure 696.1 "Control Operator Log." W/960710 ltr.

LER 96-042-00:on 960610,missed surveillance of stack gas sample flow occurred.Caused by personnel error.Approved & issued Rev 9 to Surveillance Procedure 696.1 "Control Operator Log." W/960710 ltr.
紙図書
RIFFER, W. J.//WALPOLE, R. W.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1996/07/10.
全国の図書館
  • 著者標目RIFFER, W. J.//WALPOLE, R. W.
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