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 Issue dateTitleTopic
ML23066A2217 March 2023Velan, Inc. - Revised Part 21 Notification Re Butterfly Valves Found to Have a Number of Fasteners Loose
ML21260A0079 September 2021Ametek Solidstate Controls, Notification of Potential Defect - 10CFR Part 21 Report Re Omron Timer Relay
ML21225A0814 August 2021Lake Engineering Co., Final Report Per 10 CFR Part 21 Degraded Snubber SF1154 Hydraulic Fluid Batch No. 17BLVS293
ML21126A17229 April 2021Paragon Energy Solutions Failures of Size 1 and 2 Freedom Series Full Voltage Reversing Starters
ML21014A2347 December 2020Fourth Interim Notification Per 10 CFR Part 21 Re Degraded Snubber SF1154 Hydraulic Fluid Batch No. 17BLVS293
ML20304A16114 October 2020Lake Engineering Co., Degraded Snubber SF1154 Hydraulic Fluid Batch No. 16DLVS852 Final Report Per 10 CFR Part 21
ML20097B69120 March 2020Second Interim Notification Per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 16DLVS852
ML20042E25231 January 2020EN 54485 Target Rock Redacted Update to Part 21 Report on Defect of Modification of Valve Component and Main Disc Lift Misadjustment
ML20029D16121 January 202010 CFR Part 21 Report, Notification of a Defect Modification of a Valve Component and Main Disc Lift Misadjustment
ML19347A42610 December 2019General Atomics - Reportable Occurrence Under 10CFR21: Reported Failure in Analog High Range Radiation Monitor (RP-2C)Post Accident Monitoring
ML19072A0636 March 201910 CFR Part 21 Report Notification of a Defect with Target Rock Modulating Valve Positioner; Model 810000-X
ML19071A1121 March 2019Lake Engineering Co., Corrected Potentially Degraded Snubber SF1154 Hydraulic Fluid Batch 11KLVS146 Final Report, Per 10 CFR Part 21
ML18295A19924 September 2018Lake Engineering - Second Interim Notification Per 10 CFR Part 21: Degraded Snubber SF1154 Hydraulic Fluid Batch No. 11KLVS146
ML18078A53631 January 2018Crane Nuclear, Inc. - Interim Report for 10 CFR Part 21 Investigation Report Notification of Xomox Plug Valve High Torsional Stress in Stem (Update)
ML17313A4713 November 2017Part 21 - Potentially Degraded Snubber SF1154 Hydraulic Fluid Batch 14ELVS145 Interim Report
ML17243A13628 August 2017Fisher Information Notice, (FIN) 2017-04 - Erroneous Rotary Seating Torque Calculation in Flowscanner Software
ML17212A62824 July 2017Lake Engineering Co. - Potentially Degraded Snubber SF1154 Hydraulic Fluid Second - Interim Notification Per 10 CFR Part 21
ML17194A82511 July 2017Part 21 Report Re Wedge Pin Failure in Anchor Darling Motor Operated Double Disc Gate Valves with Threaded Stem to Upper Wedge ConnectionsAnchor Darling
ML17101A3666 April 2017Part 21 Notification - Failure of Vishay Diodes
ML17096A2693 April 2017Part 21 Notification - Failure of Vishay Diodes
ML17081A45320 March 2017Part 21 - Plastic Jar Dedication Sampling
ML17026A41420 January 2017C&D Technologies, Inc. - Part 21 - Plastic Jar Dedication Sampling
ML16328A31018 November 2016Notification of the Potential Existence of Defects Pursuant to 10 CFR Part 21Foreign Material Exclusion
ML16252A27429 August 2016Azz/Nli - Part 21 Report - Potential Allen Bradley Timing Relay
ML16243A47426 August 2016Potential Part 21 Unqualified Component in Certain Allen Bradley Timing Relays
ML16238A18615 August 2016Update - Report of Potential l0CFR Part 21, Allen Bradley Timing Relay Model 700RTC-NRC Event Number 51030, Accession Number ML15134A016
ML16232A60415 August 2016Potentially Unqualified Component in Certain Allen Bradley Timing Relays
ML16188A37430 June 2016Part 21 - Inadequate Swaging and Adherence of Silicone O-Ring and Silicone PAD Soft Seat Main Disc and Pilot Disc Assemblies
ML16162A6836 June 2016Notification of Potential Defect- 10CFR Part 21 - Not Approved Current Transformers Installed in Safety Related Equipment
ML16162A6803 June 2016Part 21 - Not Approved Current Transformers Installed in Safety Related Equipment
ML16154A20726 May 2016Part 21, Azz/Nli Nuclear Logistics, Inc., Potentially Unqualified Component in Certain Allen Bradley Timing Relays Model 700RTC
ML16194A19925 May 2016Azz/Nli - Update - Report of Potential 10CFR Part 21, Allen Bradley Timing Relay Model 700RTC
ML16111A4208 April 2016Part 21 Report No. P21-04302015, Rev. 1 Regarding Potentially Unqualified Component in Certain Allen Bradley Timing Relays, Per Browns Ferry, Ginna, Millstone, Nine Mile Point, North Anna, Ft. Calhoun, Perry, River Bend, South Texas Project
ML15134A0161 May 2015Part 21 Report Regarding Potentially Unqualified Component in Certain Allen Bradley Timing Relays
ML15159A56830 April 2015Report of Potential 10CFR Part 21, Allen Bradley Timing Relay Model 700RTC
ML15079A39813 March 201510 CFR Part 21 Report of Binding in Abb K-Line Breaker Secondary Close Latches (Part Number 716610K01)
ML15058A71725 February 2015Notification of Potential Part 21 Report Re Abb K-Line Circuit Breaker Secondary Close Latch Binding
ML15049A4586 February 2015Thermo Gamma-Metrics, LLC - Part 21 Report Regarding Shutdown Margin Monitor Environmental Qualification NoncomplianceShutdown Margin
ML14274A05222 September 2014Final Report 10CFR Part 21 Evaluation Regarding Misaligned Separators in LCR-25 Standby Batteries, Revision 1 - Original Letter Did Not Include the List of Affected Utilities
ML14204A70723 July 2014Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Unseating of Valve Spring on SSPV
ML14204A70823 July 2014Enclosure 2, Description of Closure Evaluation, Non-Proprietary Information - Class I (Public)Safe Shutdown
Shutdown Margin
Scram Discharge Volume
ML14210A01023 July 2014Part 21 - Unseating of Valve Spring on Scram Solenoid Pilot ValveSafe Shutdown
Shutdown Margin
Scram Discharge Volume
ML14113A39817 April 2014Part 21 - Bearing Defect
ML14303A52628 March 2014Interim Part 21 Report - Misaligned Separators in LCR-25 Standby Batteries
ML14079A35317 March 2014Notification of Part 21 Re Bearing Defect
ML13238A25321 August 2013Notification of Potential Part 21 Report - Foxboro Power Supply Potential Failures Due to Defective the Wraps and Holders
ML13165A34212 June 201360-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers
ML13165A02217 May 2013Crane Nuclear - 10CFR21 Notification on Potential Valve Body Leakage- 2 Valve AssemblyHydrostatic
ML13102A30310 April 2013Part 21 Involving a Potential Weld DefectHydrostatic
ML13093A1532 April 2013Part 21 Report - Foxboro Power Supply Potential Failures Due to Defective Tie Wraps and Holders
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