05000250/LER-2009-002, MSIV Drain Line Leak Causes Technical Specification Required Shutdown; Failure to Perform PMT Causes Inoperable MSIV
L-2016-135, Second Response to Request for Additional Information Regarding License Amendment Request to Adopt TSTF-505, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4B
L-2018-006, Third Response to Request for Additional Information Regarding License Amendment Request to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Risk Informed Extended Completion Times - RITSTF Initiative 4b
NOC-AE-08002378, License Amendment Request for Proposed One-time Exigent Change to Technical Specification 3.7.1.7, Main Feedwater System.
NOC-AE-06002036, Revised Broad Scope Risk-Informed Technical Specification Amendment Request
A08442, Responds to NRC Re Violations Noted in Insp Rept 50-423/89-16 on 890829-1015.Corrective Actions:Verified That Single MSIV Safety Train Would Independently Close MSIV within 5
NOC-AE-06001969, Response to NRC RAI on STPNOC Proposed Risk-Informed Technical Specifications
L-2018-061, Response to Fifth Request for Additional Information Regarding License Amendment Request 236, Revision to the Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Informed....
LR-N18-0113, Supplement to License Amendment Request: Revise Reactor Trip System Instrumentation, Engineered Safety Feature Actuation System Instrumentation, Main Steam Isolation Valves and Add Main Feedwater Isolation Technical Specification
05000311/LER-1989-016-02, :on 891014,three of Four MSIVs Failed to Close within 5 & Declared Inoperable.Cause Not Determined. Hydraulic Sys for Each Valve Drained,Refilled W/Fresh Oil & Properly Vented
W3F1-2003-0067, Supplement to Amendment Request Main Steam Line Isolation Valves
NOC-AE-03001554, Withdrawal of Proposed Amendment to TS 3.7.1.5 & 3.7.1.7
NOC-AE-02001333, License Amendment Request, Proposed Changes to Technical Specifications 3.7.1.5 & 3.7.1.7
ELV-05103, Suppls 920731 Application for Amend to Licenses NPF-68 & NPF-81,adding New TS for Feedwater Isolation Sys.Suppl Submitted for Consistency W/Rev 0 to NUREG-1431 Re STS for Westinghouse Plants,Issued by NRC on 920928
RA-20-0223, Supplement to Application to Revise Harris Technical Specifications to Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b
B16570, Application for Amend to License NPF-49,revising Surveillances to Clarify When MSIVs Are Partial Stroked or Full Closure Tested.Also Added Note to TS 3.7.1.5 to Require That MSIVs Be Closed & Deactivated at Less than 320 F
ELV-03723, Application for Amends to Licenses NPF-68 & NPF-81,modifying TS 3.7.1.6 Re Main Feedwater Isolation Sys to More Accurately Address Components That Form Primary Success Path for Mitigation of DBEs
B15331, Application for Amend to License NPF-49,revising TS Re Main Steam Line Isolation Valves
B15241, Application for Amend to License NPF-49,relocating Requirements of Spec 3.6.6 for Main Steam Line Isolation Valves (Msivs) to Spec 3.7.1.5, Msivs
B14972, Application for Amend to License NPF-49,increasing Acceptance Criterion of SR 4.7.1.5.1 for Closure of Main Steam Line Isolation Valve from 5 Seconds to 10 Seconds
NRC-97-0084, Responds to Violations Noted in Insp Rept 50-341/97-07. Corrective Actions:Personnel Initiated DER 97-1012 & Removed MDCT Tag,Conducted Lessons Learned Meeting,Verified Enclosure Internal Strip Heater to Working & Repaired Door
2CAN042403, Response to the Request for Additional Information Regarding ANO-2 License Amendment Request to Revise Technical Specifications to Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended C
W3F1-2002-0101, License Amendment Request NPF-38-246 Main Steam Line Isolation Valves
2CAN012403, Supplemental Information - Adopt Risk-Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4
NRC-97-0080, Responds to NRC Re Violations Noted in Insp Rept 50-341/96-17.Corrective Actions:Ts Clarification Cancelled & Procedure Governing TS Clarifications Has Been Reviewed Against NRC Insp Guidelines on TS Interpretations
B14978, Provides Addl Info to Support 940909 Request to Amend License NPF-49,by Modifying SR 4.7.1.5.1 Re Main Steam Line Isolation Closure Time.Retyped TS Page 3/4 7-9 Encl
NOC-AE-06001994, Response to NRC Requests for Additional Information on STPNOC Proposed Risk-Informed Technical Specifications
B14984, Application for Amend to License NPF-49,revising TS Re AFW Sys,Msli Valves & ESFAS Instrumentation
05000412/LER-1987-006-01, :on 870717,MSIVs a & C Declared Inoperable & Tech Spec 3.0.3 Entered.Caused by Mechanically Bound Valve Operators.Valves Freed & Stroked Successfully Before Hot Shutdown Attained
05000528/LER-1986-060, :on 861114,annunciator Alarm SG Isol VLV Trbl Annunciated in Control Room.Caused by Low Air Pressure in MSIV SG-UV-171.Train Air Reservoir B Repressurized
05000424/LER-1987-002-01, :on 870122,potential Failure of MSIVs to Close Following Small Steam Line Break.Cause Under Investigation. MSIVs Modified to Include Addition of Relief Valve in Hydraulic Sys of Actuator.Part 21 Related
05000498/LER-1988-015, :on 880206,two MSIVs Declared Inoperable When Duty Shift Supervisor Learned That Packing Adjustments Performed.Addl Requirements for Containment Isolation Valves Not Carried Out Until 880207
05000423/LER-1997-008, :on 970124,TS 3.0.3 Action Statement for MSIV Closure Was Entered Due to TS Being Inconsistent W/Msiv Safety Function & Design.Submitted Proposed License Amend Request Ptscr 3-13-95
05000423/LER-1997-025, :on 970310,failure to Enter TS 3.0.3 Was Noted Upon Loss of Vital AC Bus VIAC-1.Caused by Failure to Address Inconsistency Between TS 3.3.2 & TS 3.8.3.1 During Development.Procedures Will Be Revised
05000341/LER-1996-014, :on 961004,Div 2 UHS cross-connect Valve de-energized.Caused by Loose Set Screw on Valve Operator Spline bushing.Cross-connect Path Established & Valves Will Also Be Modified W/Set Screw Recess
05000482/LER-1985-025, :on 850501,two Main Steam Line Isolation Valves Declared Inoperable.Caused by Hydraulic Oil Pump Malfunction.Oil Pumps Replaced & Valves Tested
05000327/LER-1991-025, :on 911214,jumpers Were Discovered on a Train Closure Circuitry That Were Not Removed Following Outage Maint Activities.Caused by Personnel Not Following Proper Procedures.Disciplinary Action Taken
05000328/LER-1983-129-03, /03L-0:on 831010,loops 3 & 4 Main Steam Line Isolation Valves 2-FCV-1-22 & 29 Would Not Close.Caused by Hardened Packing Around Stem.Valve Stems Lubricated & Satisfactorily Tested
05000457/LER-1995-004-06, :on 950501,active & Standby Accumulator Pressures Below Min Pressure Required on Msivs.Cause Due to Inadequate Surveillance Procedure.Msiv Full Stroke Surveillance Procedure Revised
05000346/LER-1983-003-03, /03L-0:on 830119,MSIV MS100 Failed to Shut Completely Following Reactor Trip on 830118.Cause Unknown. Valves Disassembled & Inspected W/No Problems Found.Valve Tested & Returned to Svc
05000311/LER-1989-016, :on 891014,3 of 4 MSIVs Failed to Close within 5 S,Per Requirement of Tech Spec 4.7.1.5.Caused by Design Error.Msivs Will Be Modified to Eliminate Concerns Associated W/Condensation Collection
05000334/LER-1982-005-03, /03L-0:on 820205,fire Barrier Penetration Between West Cable Vault & Auxiliary Feed Pump Area Found Unattended W/O Fire Retardant Seal in Place.Caused by Change of Const Dept Maint Procedure.Procedure Will Be Revised
05000346/LER-1978-024-03, /03L-1:on 780228,MSIV MS-101 Rendered Inoperable to Allow Maint Personnel to Remove Raised Metal on Two of Four Spring Guide Tubes.Cause of Raised Metal Unknown.Metal Filed Down,Valve Closing Time Adjusted & Valve Tested
LR-N17-0144, License Amendment Request: Revise Reactor Trip System Instrumentation, Engineered Safety Feature Actuation System Instrumentation, Main Steam Isolation Valves and Add Main Feedwater Isolation Technical Specification
NRC-89-0210, Details Util Determination of How Inoperability of RHR Svc Water Sys Mechanical Draft Cooling Tower Fan Brakes Should Be Treated,Per Updated Fsar.Brakes Necessary to Protect Fans During Postulated Tornado
05000395/LER-1989-016, :on 890908,shutdown Occurred Due to Inoperable Msiv.Caused by Crushed Conduit That Resulted in Short Circuit of Test Circuit Wiring.Conduit/Test Circuit Wiring Repaired
L-2014-000, Response to Fifth Request for Additional Information Regarding License Amendment Request 236, Revision to the Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Informed..
05000250/LER-1992-005, :on 920420,two Main Steam Isolation Valves Declared Inoperable.Caused by Personnel Error.Msivs a & B Were Returned to Svc in Accordance W/Procedures as Soon as Valve Misalignment Was Identified
05000316/LER-1994-001-01, :on 940221,reactor Tripped on low-low Level in Steam Generator 4 as Result of Inadequate Valve Actuator/ Stroke Adjustment Procedure.Procedures Revised
05000316/LER-1992-009-01, :on 921122,MSIVs Technically Inoperable as Result of Failure to Conduct Current Stroke Time Surveillances.Caused by Allowing Entry Into Mode 2 W/Msivs Closed.Rev to MSIV TS Will Be Requested
05000316/LER-1990-002, :on 900108,two MSIVs Exhibited Closing Time in Excess of Tech Spec 3.7.1.5 Limit of 5 S.On 900109 & 10, Confirmed That Excessive Condensation Collected on Vent Side.Caused by Inadequate Insulation
L-2017-168, Response to Fourth Request for Additional Information Regarding License Amendment Request 236, Revision to the Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Informed
L-2017-006, Supplement to License Amendment Request 236, Revision to the Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide Risk-Informed Extended Completion Times RITSTF Initiative 4b
L-2016-136, Second Response to Request for Additional Information Regarding License Amendment Request 236, Revision to the Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, Provide.
05000498/LER-2009-002, Regarding Main Steam Isolation Valve Blocked from Closing
B18851, Response to Request for Additional Information on License Basis Document Change Request 2-17-02, Containment Systems
B18696, License Basis Document Change Request 2-17-02, Containment Systems
ST-HL-AE-2608, Responds to Violations Noted in Insp Rept 50-498/88-09. Corrective Actions:Evaluation of Maint Work Request Generation & Approval Process Performed,Cases Where Testing Frequency Changed Verified & 1TSP03-CV-0001 Generated
L-91-198, Forwards Description & Summary of Safety Evaluation of Plant Changes/Mods Made,Reportable Per 10CFR50.59.Rept Includes Plant Changes/Mods Completed Between 900123-910122
05000528/LER-1986-050, :on 861101,accumulators of MSIV Found Below Min Pressure Required for Operability.Limiting Condition for Operation 3.0.3 Entered.Caused by Personnel Error.Documents Generated to Verify Oil Levels in MSIV
05000317/LER-1984-018, :on 841203,MSIV Inoperable.Caused by Oil Leakage from Piston Rod Seal & Damaged Actuator Overall Piston Seals.Seals Replaced