| | | Reporting criterion |
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| 05000397/LER-1994-001, :on 931230,untested Fuel Transfer to EDG Fuel Oil Storage Tanks Occurred.Caused by Inadequate Design Change Documentation & Operating Procedure.Procedures Revised |
- on 931230,untested Fuel Transfer to EDG Fuel Oil Storage Tanks Occurred.Caused by Inadequate Design Change Documentation & Operating Procedure.Procedures Revised
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-002, :on 940215,seals Conservatively Declared Inoperable,Following Completion of Preliminary Analysis of Seal Program.Caused by Original Const Inadequate in Some Initial Seal.Fire Watch Established |
- on 940215,seals Conservatively Declared Inoperable,Following Completion of Preliminary Analysis of Seal Program.Caused by Original Const Inadequate in Some Initial Seal.Fire Watch Established
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2) |
| 05000397/LER-1994-003, :on 940222,inadequate Motor Operator Capability RCIC Sys Steam Supply Bypass Valve Failed to Automatically Close Following Helb.Caused by Inaccurate Vendor Info.Rcic Valve Deactivated in Normal Position |
- on 940222,inadequate Motor Operator Capability RCIC Sys Steam Supply Bypass Valve Failed to Automatically Close Following Helb.Caused by Inaccurate Vendor Info.Rcic Valve Deactivated in Normal Position
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(s)(2)(i) 10 CFR 50.73(s)(2)(ii) 10 CFR 50.73(s)(2)(x) 10 CFR 50.73(s)(2)(v) 10 CFR 50.73(s)(2) 10 CFR 50.73(s)(2)(viii) 10 CFR 50.73(s)(2)(iv) |
| 05000397/LER-1994-004, :on 940307,two in-series Containment Isolation Valves MS-V-16 & MS-V-19 Inoperable Since 931217.Caused by Ambiguous Wording in Dec 1993 Operability Assessment. Procedures Modified & Training Provided |
- on 940307,two in-series Containment Isolation Valves MS-V-16 & MS-V-19 Inoperable Since 931217.Caused by Ambiguous Wording in Dec 1993 Operability Assessment. Procedures Modified & Training Provided
| 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000397/LER-1994-005, :on 940326,control Rod Failed to Scram Due to Degradation of Pilot Valve Elastomers.Caused by Inservice Aging.Scram Time Tests Performed Weekly of Operable Control Rods & SSPVs Replaced |
- on 940326,control Rod Failed to Scram Due to Degradation of Pilot Valve Elastomers.Caused by Inservice Aging.Scram Time Tests Performed Weekly of Operable Control Rods & SSPVs Replaced
| 10 CFR 50.73(s)(2) 10 CFR 50.73(s)(2)(iv) |
| 05000397/LER-1994-006, :on 940330,discovered Broken HPCS-B1-DG 3 Battery Flag Terminal Weld.Caused by Poor Equipment Design. Damaged Battery Cell Replaced |
- on 940330,discovered Broken HPCS-B1-DG 3 Battery Flag Terminal Weld.Caused by Poor Equipment Design. Damaged Battery Cell Replaced
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-007, :on 940410,RCIC Level 8 Isolation Instrument Calibr Outside TS Allowable Value.Caused by Failure to Self Check.Corrective Actions:Personnel Involved Counseled.W/ |
- on 940410,RCIC Level 8 Isolation Instrument Calibr Outside TS Allowable Value.Caused by Failure to Self Check.Corrective Actions:Personnel Involved Counseled.W/
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-008, :on 940426,CROs Observed Slight Reactor Power Fluctuations on Six Aprms.Caused by Degraded Condition of Reactor Recirculation (RRC) FCV Position Transmitter. Replaced RRC FCV Position Transmitters |
- on 940426,CROs Observed Slight Reactor Power Fluctuations on Six Aprms.Caused by Degraded Condition of Reactor Recirculation (RRC) FCV Position Transmitter. Replaced RRC FCV Position Transmitters
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-009, :on 940419,CI Provisions for Two Containment Monitoring Systems Were Inoperable Due to Inboard Valves Not Functioning as Ci Valves in Event of Loca.Corrective Action:Replace EFC Valves W/Check Valves |
- on 940419,CI Provisions for Two Containment Monitoring Systems Were Inoperable Due to Inboard Valves Not Functioning as Ci Valves in Event of Loca.Corrective Action:Replace EFC Valves W/Check Valves
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-010, :on 940810,initiated Fire Safe Shutdown Due to Lack of Adequate Analysis of Potential Fire Impact on Min Flow Control Valve Circuitry.Interim C/A Put in Place & Potential Long Term C/A Being Evaluated |
- on 940810,initiated Fire Safe Shutdown Due to Lack of Adequate Analysis of Potential Fire Impact on Min Flow Control Valve Circuitry.Interim C/A Put in Place & Potential Long Term C/A Being Evaluated
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(s)(2)(i) 10 CFR 50.73(s)(2)(x) 10 CFR 50.73(s)(2)(v) 10 CFR 50.73(s)(2) 10 CFR 50.73(s)(2)(viii) 10 CFR 50.73(s)(2)(iv) 10 CFR 50.73(s)(2)(vi) |
| 05000397/LER-1994-011, :on 940624,determined That Weekly Manual Scram Channel Functional Test Had Not Been Performed.Caused by Inadequate Communication Between Operations SRO Personnel. Programmatic Change & Counseling Personnel |
- on 940624,determined That Weekly Manual Scram Channel Functional Test Had Not Been Performed.Caused by Inadequate Communication Between Operations SRO Personnel. Programmatic Change & Counseling Personnel
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-012, :on 940623,discovered Water in Bottom of Control Room Emergency Filter Unit WMA-FU-54B.Caused by Leaky Manual Isolation Valve.Revised Deluge System Valve Station Lineups |
- on 940623,discovered Water in Bottom of Control Room Emergency Filter Unit WMA-FU-54B.Caused by Leaky Manual Isolation Valve.Revised Deluge System Valve Station Lineups
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(8) |
| 05000397/LER-1994-013, :on 940622,determined That Containment Isolation Provisions for Both Containment Monitoring Sys Inoperable.Caused by Design Error.Design Change Will Be Implemented |
- on 940622,determined That Containment Isolation Provisions for Both Containment Monitoring Sys Inoperable.Caused by Design Error.Design Change Will Be Implemented
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-014, :on 940706,ESF Actuation Occurred Due to Lineup Error.Caused by Noncompliance W/Testing Procedures. Improper Lineup Was Corrected |
- on 940706,ESF Actuation Occurred Due to Lineup Error.Caused by Noncompliance W/Testing Procedures. Improper Lineup Was Corrected
| 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(s)(2)(ii) 10 CFR 50.73(s)(2)(v) 10 CFR 50.73(s)(2) 10 CFR 50.73(s)(2)(viii) 10 CFR 50.73(s)(2)(iv) |
| 05000397/LER-1994-015, :on 940704,actuation of HPCS Sys Diesel Engine & half-scram Condition Occurred Due to Tubing Valve Manipulation.Procedure Entitled, Startup Instrument Rack Valve Line-up Changed on 940706 |
- on 940704,actuation of HPCS Sys Diesel Engine & half-scram Condition Occurred Due to Tubing Valve Manipulation.Procedure Entitled, Startup Instrument Rack Valve Line-up Changed on 940706
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-016, :on 940701,determined That CR Scram Time Had Not Been Conducted During Previous Outages.Caused by Nonconservative Interpretation of Ts.Two Training Programs for Plant Have Been Implemented Covering TS |
- on 940701,determined That CR Scram Time Had Not Been Conducted During Previous Outages.Caused by Nonconservative Interpretation of Ts.Two Training Programs for Plant Have Been Implemented Covering TS
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) |
| 05000397/LER-1994-017, :on 941020,TS Limit Exceeded Due to Improper Calibr of Suppression Pool Narrow Range Level Transmitters. Suppression Pool Level Was Returned to Appropriate TS Operating Level at 1558 Hr |
- on 941020,TS Limit Exceeded Due to Improper Calibr of Suppression Pool Narrow Range Level Transmitters. Suppression Pool Level Was Returned to Appropriate TS Operating Level at 1558 Hr
| 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(e)(2)(x) 10 CFR 50.73(s)(2) 10 CFR 50.73(s)(2)(vii) 10 CFR 50.73(s)(2)(iv) 10 CFR 50.73(e)(2)(iii) 10 CFR 50.73(e)(2)(vi) |
| 05000397/LER-1994-018-01, Forwards LER 94-018-01,incorporating New Findings,Corrective Actions & Updates of Original Info | Forwards LER 94-018-01,incorporating New Findings,Corrective Actions & Updates of Original Info | |
| 05000397/LER-1994-018, :on 941115,util Failed to Comply W/Ts Action Requirement While Inoperable Control Rod Block Instrumentation Resulted in Exceeded Allowed Outage Time. Placed Channel a Trip Function in Tripped Condition |
- on 941115,util Failed to Comply W/Ts Action Requirement While Inoperable Control Rod Block Instrumentation Resulted in Exceeded Allowed Outage Time. Placed Channel a Trip Function in Tripped Condition
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-019, :on 941121,gasket Missing from MCR Air Handler WMA-AH-51B Precludes Associated Emergency Fan WMA-FN-54B from Sufficiently Pressurizing Cr.Caused by Improper Authorization.Manager Counseled Supervisor |
- on 941121,gasket Missing from MCR Air Handler WMA-AH-51B Precludes Associated Emergency Fan WMA-FN-54B from Sufficiently Pressurizing Cr.Caused by Improper Authorization.Manager Counseled Supervisor
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000397/LER-1994-020, :on 941111,postulated That MCR Fire Could Induce Hot Short That Could Result in Spurious Closure of Mo Ci Valve CIA-V-20.Caused by Inadequate Analysis.Continuous Fire Watch Established for Area |
- on 941111,postulated That MCR Fire Could Induce Hot Short That Could Result in Spurious Closure of Mo Ci Valve CIA-V-20.Caused by Inadequate Analysis.Continuous Fire Watch Established for Area
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(iii)(A) |
| 05000397/LER-1994-021, :on 941123,holes Cut in MCR Floor Penetration 5016 Precludes Redundant Emergency Fans WMA-FN-54A(B) from Pressurizing CR Sufficiently to Meet Applicable Surveillance.Holes Resealed on 941123 |
- on 941123,holes Cut in MCR Floor Penetration 5016 Precludes Redundant Emergency Fans WMA-FN-54A(B) from Pressurizing CR Sufficiently to Meet Applicable Surveillance.Holes Resealed on 941123
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |