Pages that link to "High Negative Rate Trip"
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The following pages link to High Negative Rate Trip:
Displayed 50 items.
- ML20077Q366 (← links)
- ML20115C743 (← links)
- IR 05000120/2003020 (← links)
- ML20133E925 (← links)
- ML20128L468 (← links)
- ML20154Q861 (← links)
- ML20151Q552 (← links)
- ML20206N313 (← links)
- ML20236R466 (← links)
- ML20217G657 (← links)
- ML20216J497 (← links)
- ML21090A063 (← links)
- ML20211G383 (← links)
- CNL-21-001, Application to Modify the Technical Specification Table 3.3.1-1, Reactor Trip System Instrumentation (SQN-TS-21-01) (← links)
- ML20210Q614 (← links)
- ML20210P057 (← links)
- IR 05000348/1986003 (← links)
- ML21322A172 (← links)
- ML21195A297 (← links)
- ML20209A126 (← links)
- ML22165A105 (← links)
- B14931, Application for Amend to License NPF-49,incorporating TS by Deleting Power Range,Neutron Flux & High Negative Rate Trip (← links)
- ET 23-0003, License Amendment Request (LAR) for Removal of the Power Range Neutron Flux Rate - High Negative Rate Trip Function from Technical Specifications (← links)
- ML23090A104 (← links)
- ML23114A189 (← links)
- ML23067A152 (← links)
- Negative rate trip (redirect page) (← links)
- ENS 47081 (← links)
- IR 05000327/2016008 (← links)
- IR 05000327/2015001 (← links)
- IR 05000327/2009005 (← links)
- IR 05000315/2004006 (← links)
- IR 05000315/2004002 (← links)
- IR 05000443/2002006 (← links)
- ML17048A157 (← links)
- ML17206A054 (← links)
- ML17033B575 (← links)
- ML16207A568 (← links)
- IR 05000327/2012301 (← links)
- ML15279A248 (← links)
- ML15126A572 (← links)
- ML14339A616 (← links)
- ML14160B090 (← links)
- ML13255A264 (← links)
- ML13193A039 (← links)
- ML12299A229 (← links)
- ML12299A182 (← links)
- ML12244A075 (← links)
- ML12178A134 (← links)
- ML12171A068 (← links)
- ML12170A565 (← links)
- ML12083A157 (← links)
- ML12052A032 (← links)
- ML12041A453 (← links)
- ML12038A236 (← links)
- ML12038A235 (← links)
- ML12005A026 (← links)
- ML11290A170 (← links)
- ML112700890 (← links)
- ML11178A159 (← links)
- ML11167A071 (← links)
- ML110871534 (← links)
- ML110680628 (← links)
- ML110680626 (← links)
- ML110400748 (← links)
- ML110400651 (← links)
- ML110100647 (← links)
- ML17331B196 (← links)
- ML17326A327 (← links)
- ML17325A963 (← links)
- ML17324A751 (← links)
- ML17324A749 (← links)
- ML17318A565 (← links)
- DCL-17-038, Diablo Canyon Power Plant, Units 1 & 2, Revised Updated Final Safety Analysis Report, Rev. 23, Chapter 14, Initial Tests and Operation (← links)
- WM 16-0008, Wolf Creek Generating Station, Redacted Version of Revision 29 to Updated Safety Analysis Report, Chapter 14.0 - Initial Test Program (← links)
- RC-16-0083, Virgil C. Summer, Unit 1 - Updated Final Safety Analysis Report, Chapter 14 (← links)
- ML17192A447 (← links)
- ML11221A242 (← links)
- ML103280246 (← links)
- ML103280242 (← links)
- ML103280198 (← links)
- ML103280195 (← links)
- ML103160469 (← links)
- ML103140775 (← links)
- ML103140767 (← links)
- ML103140648 (← links)
- ML103140646 (← links)
- ML103140383 (← links)
- ML103140309 (← links)
- ML103090750 (← links)
- ML103090747 (← links)
- ML103090746 (← links)
- ML103090745 (← links)
- ML103090720 (← links)
- ML103090717 (← links)
- ML103090709 (← links)
- ML102880528 (← links)
- ML102880484 (← links)
- ML102880474 (← links)
- ML102880467 (← links)
- ML102880419 (← links)
- ML102880418 (← links)
- ML102880408 (← links)
- ML102880406 (← links)
- ML102580279 (← links)
- ML102571908 (← links)
- ML102571786 (← links)
- ML102571779 (← links)
- ML102571774 (← links)
- ML101610737 (← links)
- ML101610312 (← links)
- ML101370383 (← links)
- ML100191500 (← links)
- ML093520967 (← links)
- ML093200206 (← links)
- ML092881134 (← links)
- ML092820163 (← links)
- ML092120477 (← links)
- ML092120022 (← links)
- ML090770181 (← links)
- ML090120832 (← links)
- ML083640084 (← links)
- ML083370121 (← links)
- ML082810421 (← links)
- IR 05000338/2008301 (← links)
- ML082390072 (← links)
- ML081770368 (← links)
- ML081140063 (← links)
- ML081140047 (← links)
- ML080460212 (← links)
- ML18011A137 (← links)
- ML18011A134 (← links)
- ML18011A132 (← links)
- ML18005A987 (← links)
- RC-18-0080, Virgil C. Summer Nuclear Station, Unit 1, Updated Final Safety Analysis Report, Chapter 14, Initial Tests and Operation (← links)
- ML18221A211 (← links)
- ML060830447 (← links)
- ML060790450 (← links)
- ML060590027 (← links)
- ML060120055 (← links)
- TSTF-10-02, Transmittal of TSTF-521, Revision 0, Exclusion of Time Constants from Channel Operation Tests in Specifications 3.3.1 and 3.3.2 (← links)
- ML18095A409 (← links)
- ML18087A738 (← links)
- ML18087A737 (← links)
- ML18087A723 (← links)
- ML18081B212 (← links)
- ML18079B083 (← links)
- ML18079A557 (← links)
- ML18149A150 (← links)
- RA-18-0204, Transmittal of Technical Specification Bases (← links)
- HNP-16-064, Transmittal of Technical Specification Bases (← links)
- HNP-15-046, Transmittal of Technical Specifications Bases (← links)
- HNP-12-002, Request for License Amendment Measurement Uncertainty Recapture Power Uprate Supplemental Information (← links)
- HNP-11-097, Request for License Amendment - Measurement Uncertainty Recapture Power Uprate Supplemental Information (← links)
- DCL-09-009, License Amendment Request 09-01 - Revision to Technical Specification 3.3.1, Reactor Trip System (RTS) Instrumentation, Deletion of the High Negative Rate Trip Function (← links)
- RA-18-0261, Response to Request for Additional Information Regarding License Amendment Request on Reactor Trip System and Engineered Safety Features Actuation System Instrumentation Trip Setpoints (← links)
- ML18207A548 (← links)
- ML17334A156 (← links)
- Shoreham (← links)
- ML19210D702 (← links)
- ENS 54242 (← links)
- ML19224D063 (← links)
- ML19224C335 (← links)
- ML19257C208 (← links)
- ML19257A308 (← links)
- ML19256G243 (← links)
- ML19225C069 (← links)
- ML18285A060 (← links)
- ML19270H003 (← links)
- ML19255F520 (← links)
- ML19305A909 (← links)
- NL-05-1381, Request to Revise Technical Specifications to Delete Reactor Trip System, Function 3.b, Power Range Neutron Flux- High Negative Rate (← links)
- ML052300238 (← links)
- ML19284A516 (← links)
- ML19343B232 (← links)
- ML19339B944 (← links)
- ML20005F877 (← links)
- ML20024H203 (← links)
- ML20024F067 (← links)
- ML19105B292 (← links)
- ET 10-0028, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation (← links)
- ML20044D822 (← links)
- ML20044D819 (← links)
- ML20056F318 (← links)
- ML20041C527 (← links)
- ML20055F191 (← links)
- ML20055A168 (← links)
- ML20039F743 (← links)
- ML20039F713 (← links)
- ML20039A247 (← links)
- ML20039A240 (← links)
- ML20039A229 (← links)
- ML043370307 (← links)
- ML20053E360 (← links)
- ML041700476 (← links)
- ML041170065 (← links)
- ML041130433 (← links)
- ML041120045 (← links)
- ML041120036 (← links)
- ML040930210 (← links)
- ML040930205 (← links)
- ML20065T422 (← links)
- ML20065C584 (← links)
- ML023520188 (← links)
- ML023290627 (← links)
- ML022910403 (← links)
- L-02-094, Technical Specifications Bases Change Submittal (← links)
- ML022140359 (← links)
- ET 02-0029, Revision to Technical Specification Surveillance Requirements 3.3.1.2 and 3.3.1.3 Re Reactor Trip System Instrumentation (← links)
- IR 05000305/2002003 (← links)
- ML021230495 (← links)
- ML021220067 (← links)
- ML021220061 (← links)
- ML020700435 (← links)
- ML020700311 (← links)
- ML020600152 (← links)
- ML020330067 (← links)
- ML20086U414 (← links)
- ML20086R558 (← links)
- ML20086P477 (← links)
- ML20086P463 (← links)
- ML20085H614 (← links)
- ML20084U703 (← links)
- ML20080J417 (← links)
- ML20080G232 (← links)
- ML20079M663 (← links)
- ML20079L159 (← links)
- ML20078A135 (← links)
- ML20077Q366 (← links)
- ML20077A719 (← links)
- ML20077A132 (← links)
- ML20073R508 (← links)
- ML20099J984 (← links)
- ML20095H450 (← links)
- ML20094C084 (← links)
- ML20093M659 (← links)
- ML20093L833 (← links)
- ML20107E560 (← links)
- ML20116N875 (← links)
- ML20115B637 (← links)
- ML20113H637 (← links)
- ML20072C495 (← links)
- ML20137V082 (← links)
- ML20137T603 (← links)
- ML20137R058 (← links)
- IR 05000334/1985018 (← links)
- ML20135F696 (← links)
- ML20135B652 (← links)
- IR 05000395/1988005 (← links)
- ML20141N998 (← links)
- ML20141N994 (← links)
- PNO-V-86-010, on 860312,reactor Brought Critical Following Negative Rate Trip During Net Load Startup Test on 860311. Reactor Declared in Commercial Operation on 860313 (← links)
- ML20141N831 (← links)
- IR 05000334/1985027 (← links)
- IR 05000423/1985062 (← links)
- ML20138H861 (← links)
- IR 05000348/1985031 (← links)
- ML20134J414 (← links)
- ML20133P317 (← links)
- IR 05000348/1985028 (← links)
- ML20133H999 (← links)
- IR 05000120/2003020 (← links)
- ML20133B254 (← links)
- ML20129J561 (← links)
- ML20129D627 (← links)
- ML20128N715 (← links)
- ML20128L468 (← links)
- ML20155A307 (← links)
- ML20155A279 (← links)
- ML20154S206 (← links)
- ML20154L845 (← links)
- ML20154J629 (← links)
- ML20154E981 (← links)
- ML20154C875 (← links)
- ML20151Z212 (← links)
- ML20151Z021 (← links)
- ML20151Y475 (← links)
- ML20151Q552 (← links)
- IR 05000315/1985035 (← links)
- ML20151J838 (← links)
- ML20149E583 (← links)
- ML20155G471 (← links)
- ML20155B968 (← links)
- IR 05000295/1986019 (← links)
- ML20206E757 (← links)
- ML20205K441 (← links)
- ML20205K431 (← links)
- ML20205G159 (← links)
- ML20204J688 (← links)
- ML20204F131 (← links)
- PNO-V-86-019, on 860418,unusual Event Declared on Initiation of Shutdown.On 860417,problems W/Computer Info from in-core Instrumentation for Quadrant Power Tilt Ratio Measurement Occurred (← links)
- ML20203B373 (← links)
- IR 05000344/1986007 (← links)
- ML20207H901 (← links)
- ML20207H346 (← links)
- ML20207F620 (← links)
- ML20207B814 (← links)
- IR 05000369/1986029 (← links)
- ML20206Q963 (← links)
- ML20209D940 (← links)
- ML20207N220 (← links)
- ML20214K706 (← links)
- IR 05000423/1986033 (← links)
- IR 05000295/1986008 (← links)
- ML20212B945 (← links)
- IR 05000327/2020003 (← links)
- IR 05000454/1987031 (← links)
- ML20237K381 (← links)
- IR 05000395/1987033 (← links)
- ML20247N366 (← links)
- ML20247K371 (← links)
- ML20246P844 (← links)
- ML20246K446 (← links)
- ML20246J529 (← links)
- ML20246F459 (← links)
- IR 05000423/1989004 (← links)
- IR 05000498/1988054 (← links)
- IR 05000327/1987054 (← links)
- ML20236N470 (← links)
- ML20236K496 (← links)
- ML20236D005 (← links)
- ML20216H617 (← links)
- ML20309A600 (← links)
- IR 05000443/1986048 (← links)
- ML20215G630 (← links)
- IR 05000424/1986117 (← links)
- ML20211H016 (← links)
- ML21252A363 (← links)
- CNL-21-001, Application to Modify the Technical Specification Table 3.3.1-1, Reactor Trip System Instrumentation (SQN-TS-21-01) (← links)
- ML20210Q614 (← links)
- IR 05000348/1986003 (← links)
- ML20210F682 (← links)
- B12015, Forwards Changes to Initial Test Program,Per License Condition 2.C(10).Requirement for Reactor Trip Test at 50% Plateau & Ref to pseudo-ejected Rod Test Deleted & Note to Test 25 Added.Changes Will Be Included in FSAR Amend (← links)
- ML21209A158 (← links)
- ML21193A184 (← links)
- ML20323A306 (← links)
- ML20309A750 (← links)
- ML20268A349 (← links)
- ML21305A091 (← links)
- ML20209A032 (← links)
- ST-HL-AE-2695, Informs That More Definitive Test of Negative Flux Rate Trip Performed on Both Four & Three Loop Plants W/Rod Worths Significantly Less than Max Worth Noted in WCAP-10298, Resulting in Indication of No Reactor Trip (← links)
- ST-HL-AE-2694, Submits Description of Rev to FSAR Section 14.2 on Initial Startup Test Program,Deleting Test 27, Static Rcca Drop & Rcca Below-Bank Position Measurement Test (← links)
- ML22173A033 (← links)
- ST-HL-AE-1458, Forwards Response to Draft SER & FSAR Items,Including Testing of Remote Shutdown Operation,Insp of New Fuel & Central Assemblies Upon Receipt & Physical Security Plan. Marked-up FSAR Pages Will Be Incorporated in FSAR Amend (← links)
- ML20132B767 (← links)
- B11608, Forwards Draft STS for three-loop Operation of Facility, Reflecting ANSI N510-1980 & Providing Addl Info Not Included in Original Submittal (← links)
- ST-HL-AE-1186, Forwards Revised FSAR Chapter 14.2,including Preoperational & Initial Test Summaries & Associated Revised Responses to NRC Questions 423.1 - 423.35,for Review & Approval (← links)
- ST-HL-AE-3750, Application for Amends to Licenses NPF-76 & NPF-80,changing TS 2.2.1,3.3.1 & Tables 2.2-1,3.3-1,3.3-2 & 4.3-1,Item 4 Re Negative Flux Rate Trip of Reactor (← links)
- ML22194A215 (← links)
- ML22140A069 (← links)
- TXX-4401, Forwards Table Providing Description of Amend 54 to FSAR (← links)
- ML23241A124 (← links)
- IR 05000443/1993016 (← links)
- ML23062A640 (← links)
- ML23062A627 (← links)
- ENS 57148 (← links)
- ML24059A404 (← links)
- ML24130A070 (← links)
- ML23208A068 (← links)
- 05000282/LER-2020-001, (PINGP) Unit 1, Reactor Trip Caused by Spurious Neutron Flux Signal During Reactor Protection System Testing (← links)
- ML20248C395 (← links)
- ML20247B110 (← links)
- ML20246L313 (← links)
- 05000456/LER-1989-006-09, :on 890718,lightning-induced Voltage Transients Experienced,Resulting in Actuation of Multiple Rod Drive Overvoltage Protection Devices.Caused by Inadequate Lightning Protection.Protectors Reset (← links)
- 05000328/LER-1989-008-03, :on 890710,reactor Trip Occurred on High Negative Flux Rate as Noted on first-out Annunciator.Caused by Dropped Rod.Action Plan Established to Systematically Troubleshoot Sys to Determine Operability (← links)
- 05000369/LER-1989-013-02, :on 890630,flow Indication for Steam Generator C Failed High & on 890705,alarm for 3% Deviation Received During Power Escalation.Caused by Inappropriate Action & Procedure Deficiency.Training Implemented (← links)
- 05000339/LER-1987-017-02, :on 871103,nuclear Instrument Detector Channel N-44 Not Placed in Trip within 1 H After Entering Mode 2. Caused by Procedure Inadequacy.Procedure Revised (← links)
- 05000482/LER-1987-022, :on 870528,reactor Trip & ESF Actuation Occurred.Caused by Turbine Bldg Fan Breaker Malfunction. Preventive Maint for Loose Connections on Breaker Cubicle Integrated W/Maint of Stated Equipment (← links)
- 05000282/LER-1998-008, :on 980605,Unit 1 Tripped.Caused by Equipment Failure.Plant Reactor Trip Recovery Have Been Improved Via Temporary Memo (← links)
- 05000454/LER-1986-028-02, :on 861002,reactor Manually Tripped.Caused by Defective Firing Card & Intermittent Failure of Alarm Card. Rod Drive Sys Troubleshot,Responsible Circuit Cards Replaced & Alarm Cleared (← links)
- ML20213E343 (← links)
- ML20206Q388 (← links)
- ML20203L479 (← links)
- 05000323/LER-1986-007, :on 860305,nuclear Instrumentation Sys Negative Rate Reactor Trip Occurred Due to Two Dropped Rods.Caused by Faulty Logic Module in Rod Control Circuitry.Faulty Module Replaced & Plant Stabilized (← links)
- 05000295/LER-1986-008, :on 860221,negative Flux Rate Trip Discovered to Be Calibr to Nonconservative Value.Caused by Input Changes to Accident Analysis for Dropped Rods.Safety Analysis Procedures Reviewed (← links)
- 05000327/LER-1990-011, :on 900608,discovered That Intermediate & Power Range Nis Channels Nonconservatively Calibr Following Outage (← links)
- 05000413/LER-1985-042, :on 850616,during Mode 1,nuclear Instrumentation High Flux Rate Power Range Reactor Trip Occurred.Cause Undetermined.Power Range Channels Reset. Equipment Realigned (← links)
- 05000457/LER-1988-031, :on 881105,reactor Trip Due to Negative Rate Trip on All Instrumentation Sys Power Range Channels Occurred.Caused by Incorrect Relay 1H Setting Due to Conflicting Info in Technical Manual (← links)
- ML20195D097 (← links)
- ML20155F430 (← links)
- ML20155F323 (← links)
- 05000323/LER-1986-008, :on 860311,automatic Reactor & Subsequent Turbine Trips Occurred.Caused by Nuclear Instrumentation Sys (Nis) Trip Signal Exceeding Trip Setpoint.Nis Reset in Accordance W/Westinghouse Recommendation (← links)
- 05000457/LER-1988-014, :on 880622,reactor Trip Occurred as Result of lo-lo Level on Steam Generator 2B.Caused by Low Static Spring Preload,Dirt & Grease Partially Blocking Valve Action.Steam Generator Water Level Restored (← links)
- 05000456/LER-1988-016-06, :on 880811,reactor Tripped Due to Improper Administrative Controls.Caused by Cognitive Personnel Error. Stable Plant Condition Established Following Reactor Trip.W/ (← links)
- 05000423/LER-1988-010, :on 880209,discovered That Nuclear Instrumentation Negative & Positive Rate Reactor Trips Set Nonconservatively.Caused by Personnel Failing to Properly Account for Leakage on Excore Instrumentation (← links)
- ML20149L176 (← links)
- 05000395/LER-1988-002, :on 880216,reactor Trip Occurred During Surveillance Testing W/Nuclear Instrumentation Sys Power Range Channel N-42 Inoperable.Design of Meter Test Board Susceptable to Mechanical Loosening (← links)
- 05000295/LER-1986-008-01, :on 860221,negative Flux Rate Trip Discovered Calibr to Nonconservative Value.Caused by Discrepant Westinghouse Owners Group Procedure Restrictions.Tech Spec Approved by NRC (← links)
- 05000315/LER-1985-050, :on 851002,power Range Neutron Rate Trip Setpoints Discovered Set at Nonconservative Values,Per Tech Spec Table 2.2-1.Caused by Incorrect Interpretation of Westinghouse Documents.Procedures Corrected (← links)
- 05000348/LER-1985-015, :on 850925,determined That Positive & Negative Rate Trip Settings Existing Before 850619 Outside Tech Spec Tolerance.Caused by Incorrect Interpretation of Vendor Info. Procedure Revised (← links)
- 05000334/LER-1985-020, :on 851209,during Meeting W/Westinghouse Discovered That Rate Trip Setpoints Nonconservative in Case of 5% Ramped Change.Caused by Misinterpretation of Mfg Bulletin.Procedure Revised,Channels Recalibr (← links)
- 05000364/LER-1985-015-01, :on 851212,positive & Negative Rate Trips on Power Range Nuclear Instrumentation Channel N-43 Discovered Improperly Calibr on 851210.On 851211,both Rate Trip Circuitry Channels Inoperable (← links)
- 05000483/LER-1985-051, :on 851208,reactor Trip Occurred as Result of High Negative Flux Rate.Caused by Rapid Power Reduction Initiated in Response to Main Feedwater Pump a Fluctuations. Rod Insertion Rate Restricted (← links)
- ML20136F353 (← links)
- 05000275/LER-1985-031, :on 850815,incorrect Value Used to Align Nuclear Instrumentation Sys Power Range Positive & Negative Rate Trip Bistables & Range Rate Trip Setpoints Set Incorrectly.Caused by Personnel Error (← links)
- 05000454/LER-1985-078, :on 850807,during Delta I Calibrs,Reactor Tripped on Power Range High Negative Flux Rate.Caused by Personnel Error.Instrument Maint Dept Personnel Counseled & Surveillance Procedures Revised (← links)
- 05000482/LER-1985-058, :on 850731,reactor Tripped & ESF Actuation, Feedwater Isolation & Steam Generator Blowdown & Sample Isolation Occurred.Caused by Electrical Spike on Channel of Power Range Nuclear Instrumentation (← links)
- 05000344/LER-1985-007, :on 850628,incorrect Method Used for Setting Nuclear Instrumentation Sys Power Range Positive & Negative Rate Trips.Caused by Misinterpretation of Vendor Technical Manual.Incorrect Procedure Revised (← links)
- ML20128H550 (← links)
- 05000327/LER-2019-003-01, 1 for Sequoyah Nuclear Plant, Unit 1, Automatic Reactor Trio Due to Negative Rate Trip as a Result of a Dropped Control Rod (← links)
- 05000443/LER-1996-006, :on 960816,discovered Missed Surveillance Re Verification of Time Constant of Nis Rate Trip Circuit. Caused by Procedural Inadequacy.Revised Procedures for Performing Analog Channel Operability Test (← links)
- ML20112B625 (← links)
- 05000272/LER-1984-028, :on 841223,reactor Trip Initiated.Caused by Technician Error While Reducing Power Range High Flux Trip Setpoints.Corrective Actions Restricted to Individual Responsible for Occurrence (← links)
- ML20100D273 (← links)
- 05000369/LER-1985-006-01, :on 850205,reactor Tripped on High Negative Flux Rate Signal.Cause unknown.Post-trip Review Performed & Electronic Recorders Used to Monitor Possible Spikes (← links)
- ML20095L575 (← links)
- ML20094L364 (← links)
- 05000282/LER-1984-005, :on 840830,during Surveillance Testing in ex-core Nuclear Instrumentation Cabinets,Reactor Trip Occurred.Caused by Improper Use of Test Leads.Procedures Revised (← links)
- 05000499/LER-1992-001, :on 920122,reactor Trip Occurred Due to High Neutron Flux Negative Rate.Troubleshooting of Pressurizer Backup Heater 2A Identified No Problems & Faulty Diode CR1 Replaced (← links)
- ML20092A073 (← links)
- ML20091A824 (← links)
- 05000327/LER-1995-011, :on 950718,power Range Neutron Flux Monitor Was Inoperable Longer than Allowed by Ts.Caused by Signal Cable from Lower Detector to Monitor Disconnected.Reconnected Cable (← links)
- ML20086H561 (← links)
- ML20086G649 (← links)
- 05000445/LER-1995-002, :on 950505,automatic Reator Trip Occurred. Caused by Lightning Strike.Task Team Formed to Evaluate & Investigate Methods of Minimizing Effects of Lightning Strike (← links)
- ML20080H127 (← links)
- ML20079G789 (← links)
- ML20062F405 (← links)
- ML20059N204 (← links)
- ML20057F466 (← links)
- ML20055H006 (← links)
- 05000423/LER-1990-019, :on 900606,automatic Reactor Trip from Negative Flux Rate Signal Occurred Due to Dropped Control Rod.Caused by Broken Connection in Stationary Coil Power Cable for Rod. Special EOP Performed & Connector Replaced (← links)
- IR 05000338/1982007 (← links)
- ML20053E373 (← links)
- ML20052H930 (← links)
- ML20052H057 (← links)
- ML20044H051 (← links)
- ML20043H903 (← links)
- 05000482/LER-1985-058-01, Corrected LER 85-058-01:on 850731,reactor Trip,Main Turbine Trip,Auxiliary Feedwater Actuation,Feedwater Isolation & Steam Generator Blowdown & Sample Isolation Occurred.Caused by Faulty Power Supply to Channel.Power Replace (← links)
- ML20043A872 (← links)
- ML20042G028 (← links)
- IR 05000327/2019004 (← links)
- IR 05000327/1982003 (← links)
- IR 05000369/1982001 (← links)
- ML20040A277 (← links)
- ML20034D826 (← links)
- ML20032C294 (← links)
- 05000339/LER-1981-069-03, /03L-0:on 810908,during Functional Testing,High Negative Neutron Flux Rate Trip Setting for Power Range Channel N-41 Exceeded Tech Spec Setpoint.Caused by Instrument Setpoint Drift.Bistable for N-41 Recalibr (← links)
- IR 05000348/1981011 (← links)
- ML20029E708 (← links)
- ML20028H005 (← links)
- IR 05000160/1990003 (← links)
- IR 05000160/1989002 (← links)
- ML19332E676 (← links)
- IR 05000498/1989041 (← links)
- ML19330C206 (← links)
- 05000499/LER-1989-026, :on 891013,reactor Trip Occurred Due to High Neutron Flux Negative Rate on Two of Four power-range Neutron Monitoring Channels.Caused by High Resistance Connection on Gripper Diode.Diode Replaced (← links)
- ML19323D970 (← links)
- IR 05000348/1980002 (← links)
- ML19312E444 (← links)
- IR 05000338/1980011 (← links)
- 05000327/LER-2019-003, Automatic Reactor Trip Due to Negative Rate Trip as a Result of a Dropped Control Rod (← links)
- IR 05000338/1979052 (← links)
- ML19294B115 (← links)
- IR 05000338/1980019 (← links)
- 05000348/LER-1979-017-01, /01T-2 on 790330:util Notified by Westinghouse of Single Dropped Rod W/Potential for Calculated DNB Ratios Lower than Reported to NRC for Floating Nuclear Plants. Caused by Incorrect Measurement During Rod Drop Events (← links)
- 05000348/LER-1979-054-01, /01T-0:on 791119,notified by Westinghouse That Possibility Exists That Current Negative Rate Trip Setpoints May Not Provide Reactor Trip During Single or Multiple Rod Drop Events.Caused by Designer Calculation Errors (← links)
- 05000338/LER-1979-152-01, /01T-0:on 791116,nonconservatism Found in Error Analysis of Nuclear Instrumentation Reactor Rate Trip Circuit.Caused by Improper Treatment of Factors Affecting Accuracy of Reactor Protection Rate Trip Circuitry (← links)
- ML19256E588 (← links)
- 05000338/LER-1978-129-03, /03L-0 on 781219: During Performance of Routine Periodic Test of Reactor Rate Trip Time Constant for Nis Channel N-42, Allowable Time Limits Were Not Observed.Caused by Electronic Drift in Instrumentation (← links)
- 05000295/LER-1979-090-01, /01T-0:on 791120,negative Flux Rate Trip Circuitry Found to Be Susceptible to Larger Uncertainties than Previously Thought.Caused by Inadequate Evaluation of Nuclear Instrumentation Sys (← links)
- ML19231A056 (← links)
- ML19210C931 (← links)
- ML19176A129 (← links)
- ML18285A182 (← links)
- 05000316/LER-2078-022-03, Letter Licensee Event Report (← links)
- IR 05000272/1999004 (← links)
- 05000272/LER-1999-004-02, :on 990520,reactor Tripped from 100% Power,Due to Negative Flux Trip Signal from Nuclear Instrumentation. Cause Has Not Been Determined.Discoloration Was Identified on One of Penetrations.With (← links)
- 05000311/LER-1988-009-02, :on 880513,reactor Trip Occurred.Caused by Control Rod 1D3 Drop Resulting in Negative Rate Trip.Testing for Probable Causes of Control Rod Drop Completed (← links)
- ML18081B087 (← links)
- 05000400/LER-1997-016, :on 970608,reactor Trip Occurred,Due to Personnel Error While Attempting to Adjust Power Range Nuclear Instrumentation Channel Following Performance of Calorimetric.Procedures Revised (← links)
- ML18005B116 (← links)
- IR 05000315/1990013 (← links)
- ML17333A813 (← links)
- ML17328A426 (← links)
- ML17328A129 (← links)
- IR 05000315/1987028 (← links)
- ML17325B246 (← links)
- 05000315/LER-1988-003-01, :on 880520,determined That Low Setpoint Trip Should Have Been time-response Tested.Probably Caused by Lack of Specific Detail in Tech Specs.Test Procedures Revised to Include Low Setpoint Testing (← links)
- IR 05000315/1986022 (← links)
- IR 05000315/1985036 (← links)
- ML17320A771 (← links)
- 05000316/LER-1978-022-03, /03X-1 on 780407:during Normal Operation,Position Indication for Rods D-12 & H-8 Exceeded +/- 12 Step Limit of Tech Specs.Outputs of Amplifiers That Feed Control Board Indicators Found to Be Incorrect (← links)
- ML17083A265 (← links)
- ML16340B061 (← links)
- ML16230A512 (← links)
- 05000327/LER-2015-001, Regarding Automatic Reactor Trip Due to Negative Rate Trip as a Result of a Dropped Control Rod (← links)
- 05000328/LER-2009-001, Regarding Automatic Reactor Trip Following a Power Range Negative Rate Trip (← links)
- ML24149A253 (← links)
- ML24191A229 (← links)
- ENS 57997 (← links)
- ML24158A526 (← links)
- ML24155A222 (← links)
- ML24086A431 (← links)
- IR 05000443/2023004 (← links)
- ML24016A070 (← links)
- ML20203F649 (← links)
- ML20202B288 (← links)
- 05000412/LER-1997-007-01, :on 971205,routine Surveillance Testing of Pr Neutron Flux High Positive Rate RT Function Was Inadequate. Caused by Lack of Awareness During Procedural Development to Ensure Adequate Overlap.Procedure Revised (← links)
- 05000344/LER-1986-001, :on 860208,during Full Power,Circulating Water Pump a Tripped,Resulting in High Negative Flux Rate Reactor Trip.Caused by Low Lube Oil Flow Due to Drop in Lube Oil Temp.Lube Oil Temp Restored to Normal (← links)
- 05000315/LER-1985-050, :on 851002,power Range Neutron Rate Trip Setpoints Discovered Set at Nonconservative Values,Per Tech Spec Table 2.2-1.Caused by Incorrect Interpretation of Westinghouse Documents.Procedures Corrected (← links)
- ML20128P448 (← links)
- ML20101U205 (← links)
- 05000369/LER-1985-006-01, :on 850205,reactor Tripped on High Negative Flux Rate Signal.Cause unknown.Post-trip Review Performed & Electronic Recorders Used to Monitor Possible Spikes (← links)
- ML20091A837 (← links)
- ML20059C467 (← links)
- ML20059C459 (← links)
- ML20054J441 (← links)
- ML20035B913 (← links)
- ML20033G522 (← links)
- ML20033G518 (← links)
- IR 05000338/1979048 (← links)
- IR 05000334/1979016 (← links)
- ML18207A642 (← links)