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 Issue dateTitle
IR 05000454/20210126 January 2022Biennial Problem Identification and Resolution Inpsection Report 05000454/2021012 and 05000455/2021012
IR 05000454/20170027 August 2017NRC Integrated Inspection Report 05000454/2017002 and 05000455/2017002
IR 05000454/201600226 July 2016NRC Integrated Inspection Report 05000454/2016002; 05000455/2016002 and Exercise of Enforcement Discretion (EA-16-125)
IR 05000454/201500222 July 2015IR 05000454/2015002, 05000455/2015002, 07200068/20150001; on 04/01/2015 - 06/30/2015; Byron Station, Units 1 and 2; Routine Integrated Inspection Report
IR 05000454/201400510 February 2015Re-Issued IR 05000454/2014005, 05000455/2014005; (10/01/2014 - 12/31/2014); Byron Station, Units 1 and 2; Inservice Inspection Activities, Operability Determinations, and Outage Activities
ML15036A5275 February 2015IR 05000454/2014005; 05000455/2014005, October 1, 2014 Through December 31, 2014, Byron Station, Units 1 and 2, Integrated Inspection Report
IR 05000454/20140046 November 2014IR 050004542014-004; 050004552014004, on 09/30/2014, Byron Station, Units 1 and 2 Integrated Inspection
IR 05000454/20130053 February 2014IR 05000454-13-005 and 05000455-13-005; 10/01/13 - 12/31/13; Byron Station, Units 1 & 2; Heat Sink; Plant Modifications
IR 05000454/20120055 February 2013IR 05000454-12-005 and 05000455-12-005, 10/01/2012 - 12/31/2012, Byron Station, Units 1 & 2, Operability Evaluations, Performance Indicator Verification
IR 05000454/20100043 November 2010IR 05000454-10-004, 05000455-10-004, 07200068-10-001; 07/01/10 09/30/10; Byron Station, Units 1 & 2; Routine Integrated Inspection Report; Other Activities
IR 05000454/200800413 November 2008IR 05000454-08-004, 05000455/2008004, on July 1, 2008 - September 30, 2008, Byron Station, Units 1 and 2; Fire Protection, Maintenance Effectiveness; Operability Evaluation
IR 05000454/20070038 August 2007IR 05000454-07-003 and 05000455-07-003; on 03/01/2007 - 06/30/2007; Byron Station, Units 1 and 2; Fire Protection, Inservice Inspection Activities, Operability Evaluations, and Refueling and Outage Activities
IR 05000454/200700215 May 2007IR 05000454-07-002; 05000455-007-002; on 01/01/2007-03/31/2007; Byron Station, Units 1 and 2; Equipment Alignment and Fire Protection
IR 05000454/200600512 February 2007IR 05000454-06-005, 05000455-06-005; 10/01/2006-12/31/2006; Byron Station, Units 1 and 2; Identification and Resolution of Problems
IR 05000454/20060033 August 2006IR 05000454-06-003; 05000455-06-003; 05000454-06-010; 05000455-06-010; on 04/01/2006-06/30/2006; Byron Station, Units 1 and 2; Routine Integrated Inspection Report
IR 05000454/20050034 May 2005IR 05000454-05-003; IR 05000455-05-003 on 01/01/2005-03/31/2005 for Byron Station, Units 1 and 2; Post Maintenance Testing, Surveillance Testing, Access Control to Radiologically Significant Areas, Event Followup, Other Activities
IR 05000454/20040078 November 2004IR 05000454-04-007; IR 05000455-04-007; on 07/01/2004-09/30/2004; Byron Station, Units 1 and 2; Equipment Alignment, Maintenance Effectiveness, Maintenance Risk Assessment, and Temporary Plant Modifications
IR 05000454/20030043 July 2003IR 05000454-03-004, 05000455-03-004, on 05/05-23/2003; Exelon Generation Company, LLC; Byron Station, Units 1 and 2; Safety System Design and Performance Capability Inspection
IR 05000004/19540155 December 2000IR 05000454-15, IR 05000455-15, on 10/01-11/15/2000; Commonwealth Edison Company; Byron Generating Station, Units 1 & 2. Resident Inspector Report and Emergency Action Level and Emergency Plan Changes
IR 05000454/199901025 August 1999Insp Repts 50-454/99-10 & 50-455/99-10 on 990622-0802.No Violations Noted.Major Areas Inspected:Licensee Operations, Maint,Engineering & Plant Support
IR 05000454/199900816 July 1999Insp Repts 50-454/99-08 & 50-455/99-08 on 990511-0621.No Violations Noted.Major Areas Inspected:Licensee Operations, Maint,Engineering & Plant Support
IR 05000454/199900314 April 1999Insp Repts 50-454/99-03 & 50-455/99-03 on 990217-0329. Violations Noted.Major Areas Inspected:Licensee Operations, Maint,Engineering & Plant Support
IR 05000454/199900210 March 1999Insp Repts 50-454/99-02 & 50-455/99-02 on 990105-0216.No Violations Noted.Major Areas Inspected:Licensee Operations, Maint,Engineering & Plant Support
IR 05000454/199802018 December 1998Insp Repts 50-454/98-20 & 50-455/98-20 on 981006-1123.No Violations Noted.Major Areas Inspected:Operations,Maint, Engineering & Plant Support
IR 05000454/199801929 October 1998Insp Repts 50-454/98-19 & 50-455/98-19 on 980825-1005.No Violations Noted.Major Areas Inspected:Licensee Operations, Maint,Engineering & Plant Support
IR 05000454/199801431 July 1998Insp Repts 50-454/98-14 & 50-455/98-14 on 980531-0713. Violations Noted.Major Areas Inspected:Operations, Maint/Surveillance,Engineering & Plant Support
ML20248C53029 May 1998Application for Amends to Licenses NPF-37,NPF-66,NPF-72 & NPF-77,revising TS Bases Section 3/4.4.4, Relief Valves to Credit Automatic Function of PORVs to Provide Mitigation for Inadvertent Operation of ECCS
IR 05000454/199800516 March 1998Insp Repts 50-454/98-05 & 50-455/98-05 on 980113-0223. Violations Noted.Major Areas Inspected:Operations,Maint, Engineering & Plant Support
IR 05000454/199701222 August 1997Insp Repts 50-454/97-12 & 50-455/97-12 on 970613-0724.No Violations Noted.Major Areas Inspected:Licensee Operations, Engineering,Maint & Plant Support
IR 05000454/199700528 May 1997Corrected Ltr Forwarding Insp Repts 50-454/97-05 & 50-455/97-05.Rev Removes Terms Inaccurate, Late & Incorrect & Replaces Them W/Term Incomplete
IR 05000454/199600913 March 1997Discusses 970124 Meeting W/Util in Lisle,Ill Re Actions Related to Excessive Silt Buildup in ESW Cooling Tower Basins at Byron Station.Issue Discussed in Detail in Insp Repts 50-454/96-09 & 50-455/96-09
IR 05000454/19960011 October 1996SALP Repts 50-454/96-01 & 50-455/96-01 for 940821-960817
ML20217D5329 November 1995Forwards Partially Withheld Background Briefing Package in Preparation for 951116 Meeting Between Commission & Senior Comed Mgt.Purpose of Visit to Discuss Performance at Each of Sites & Challenges & Issues Needed to Be Addressed
ML20054L5751 July 1982Forwards Submittal Re plant-specific Valve Operability Assessments Per TMI Item II.D.1 & Generic Ltr 81-36, Revised Schedule for Completion of TMI Action Item II.D.1, Relief & Safety Valve Testing
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