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LER 95-043-00:on 951115,reactor core power exceeded rated thermal power of 2,700 Mw for period of 11 h.Caused by personnel error.Changed Procedure OP 2316A.W/951213 ltr.

LER 95-043-00:on 951115,reactor core power exceeded rated thermal power of 2,700 Mw for period of 11 h.Caused by personnel error.Changed Procedure OP 2316A.W/951213 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/12/13.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-039-00:on 951010,SW pump performance SR less stringent than TS due to personnel error.Performed review which confirmed that most recent SW test results met TS requirements.W/951103 ltr.

LER 95-039-00:on 951010,SW pump performance SR less stringent than TS due to personnel error.Performed review which confirmed that most recent SW test results met TS requirements.W/951103 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/11/03.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 94-040-02:on 941206,ventilation design deficiency affected enclosure bldg integrity.Caused by deficiency in original design.Completed work to relocate hydrogen analyzer & sample hood to outside enclosure bldg.W/950911 ltr.

LER 94-040-02:on 941206,ventilation design deficiency affected enclosure bldg integrity.Caused by deficiency in original design.Completed work to relocate hydrogen analyzer & sample hood to outside enclosure bldg.W/950911 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/09/11.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-044-00:on 951129,discovered surveillance period for containment air lock testing exceeded 25% extension.Caused by unclear TS surveillance requirements.Changed manual to clarify when to use 4.0.2 requirement.W/951228 ltr.

LER 95-044-00:on 951129,discovered surveillance period for containment air lock testing exceeded 25% extension.Caused by unclear TS surveillance requirements.Changed manual to clarify when to use 4.0.2 requirement.W/951228 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/12/28.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-021-00:on 950517,design error confirmed to be present in ESAS.Caused by ESAS design deficiency.Delay circuit installed on SIAS actuation module relay output.W/950616 ltr.

LER 95-021-00:on 950517,design error confirmed to be present in ESAS.Caused by ESAS design deficiency.Delay circuit installed on SIAS actuation module relay output.W/950616 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1995/06/16.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-015-00:on 950418,crane operation over spent fuel pool w/emergency ventilation inoperable occurred due to disassembly of main exhaust fan.Installed bypass jumper to blank off opening in ductwork.W/950518 ltr.

LER 95-015-00:on 950418,crane operation over spent fuel pool w/emergency ventilation inoperable occurred due to disassembly of main exhaust fan.Installed bypass jumper to blank off opening in ductwork.W/950518 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/05/18.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-040-00:on 951022,power range safety channel & Delta T power channel calibr performed beyond required frequency. Caused by personnel error.Briefed all licensed operators on event as part of training.W/951120 ltr.

LER 95-040-00:on 951022,power range safety channel & Delta T power channel calibr performed beyond required frequency. Caused by personnel error.Briefed all licensed operators on event as part of training.W/951120 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/11/20.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 96-001-00:on 960104,RCS heatup rate exceeded TS limit due to inadequate surveillance procedure & computer heatup/ cooldown program used to monitor RCS heatup & cooldown rates.Changed plant operating procedures.W/960130 ltr.

LER 96-001-00:on 960104,RCS heatup rate exceeded TS limit due to inadequate surveillance procedure & computer heatup/ cooldown program used to monitor RCS heatup & cooldown rates.Changed plant operating procedures.W/960130 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1996/01/30.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-033-00:on 950809,manual RT initiated due to loss of atmospheric dump valve control.Caused by blown fuse on circuit board in control circuit of valve.Circuit board replaced & valve returned to svc.W/950907 ltr.

LER 95-033-00:on 950809,manual RT initiated due to loss of atmospheric dump valve control.Caused by blown fuse on circuit board in control circuit of valve.Circuit board replaced & valve returned to svc.W/950907 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/09/07.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-027-00:on 950624,identified that fire damper not included in surveillance program due to administrative personnel error.TS surveillance for fire dampers, "Fire Damper Operability..." (2618G-1) revised.W/950719 ltr.

LER 95-027-00:on 950624,identified that fire damper not included in surveillance program due to administrative personnel error.TS surveillance for fire dampers, "Fire Damper Operability..." (2618G-1) revised.W/950719 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/07/19.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-041-00:on 951030,SI & containment spray sys valves operational readiness test identified potential for placing EDG in overloaded condition.Caused by deficient procedure. Implemented procedure change to SP 21136.W/951128 ltr.

LER 95-041-00:on 951030,SI & containment spray sys valves operational readiness test identified potential for placing EDG in overloaded condition.Caused by deficient procedure. Implemented procedure change to SP 21136.W/951128 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES1995/11/28.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-031-00:on 950803,CEA not able to be aligned w/group in 1 h required by TS due to power supply failure.Actions specified in AOP 2556, "CEA Malfunction,"Section 4.3, "Dropped Rod." W/950828 ltr.

LER 95-031-00:on 950803,CEA not able to be aligned w/group in 1 h required by TS due to power supply failure.Actions specified in AOP 2556, "CEA Malfunction,"Section 4.3, "Dropped Rod." W/950828 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/08/28.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-010-00:on 950303,determined that each circuit contained an auxiliary contact off smoke detector circuit which de-energizes fan during fire.Caused by inadequate design.Design change being processed.W/950331 ltr.

LER 95-010-00:on 950303,determined that each circuit contained an auxiliary contact off smoke detector circuit which de-energizes fan during fire.Caused by inadequate design.Design change being processed.W/950331 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1995/03/31.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-032-00:on 950808,reactor manually tripped due to unisolable secondary steam leakage.Caused by pipe rupture. Critical piping & components in heater drains sys inspected to identify damage caused by sys transient.W/950907 ltr.

LER 95-032-00:on 950808,reactor manually tripped due to unisolable secondary steam leakage.Caused by pipe rupture. Critical piping & components in heater drains sys inspected to identify damage caused by sys transient.W/950907 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/09/07.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-045-00:on 951214,plant shutdown initiated due to indeterminate structural integrity of charging valve 2-CH-435.Repaired valve.W/960112 ltr.

LER 95-045-00:on 951214,plant shutdown initiated due to indeterminate structural integrity of charging valve 2-CH-435.Repaired valve.W/960112 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1996/01/12.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-007-00:on 950219,fire watch found sleeping in auxiliary bldg.Caused by personnel error.New fire watch assigned to affected areas & tours of continuous posts by fire watch supervisors increased.W/950321 ltr.

LER 95-007-00:on 950219,fire watch found sleeping in auxiliary bldg.Caused by personnel error.New fire watch assigned to affected areas & tours of continuous posts by fire watch supervisors increased.W/950321 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/03/21.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-012-01:on 950313,determined that RPS RCS low flow trip setting may not satisfy assumptions in SA.Caused by excessive component (transmitter) drift & inadequate design review.RCS flow transmitter recalibrated.W/950705 ltr.

LER 95-012-01:on 950313,determined that RPS RCS low flow trip setting may not satisfy assumptions in SA.Caused by excessive component (transmitter) drift & inadequate design review.RCS flow transmitter recalibrated.W/950705 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.,NORTHEAST UTILITIES SERVICE CO.1995/07/05.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-038-00:on 951006,H monitor flowpath deficiency was discovered.Caused by design deficiency.Provided procedure guidance in operations procedure that would provide electrical power to outside containment.W/951102 ltr.

LER 95-038-00:on 951006,H monitor flowpath deficiency was discovered.Caused by design deficiency.Provided procedure guidance in operations procedure that would provide electrical power to outside containment.W/951102 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/11/02.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-026-00:on 950620,discovered missed fire door surveillance due administrative personnel error.Fire door inspected & added to surveillance procedure.

LER 95-026-00:on 950620,discovered missed fire door surveillance due administrative personnel error.Fire door inspected & added to surveillance procedure.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/07/19.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.

LER 95-012-00:on 950313,RPS low flow trip did not meet SA assumptions.Caused by excessive component drift & inadequate design review.Recalibrated RCS flow dP transmitters to use more effective span.W/950411 ltr.

LER 95-012-00:on 950313,RPS low flow trip did not meet SA assumptions.Caused by excessive component drift & inadequate design review.Recalibrated RCS flow dP transmitters to use more effective span.W/950411 ltr.
Paper図書
LUTZI, P. J.//MILLER, D. B.NORTHEAST NUCLEAR ENERGY CO.1995/04/11.
Other Libraries in Japan
  • Author HeadingLUTZI, P. J.//MILLER, D. B.
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