LER-1999-001, Forwards LER 99-001-00 Re 990312 ESF Actuation of Rcics Due to High Steam Flow Signal During Sys Restoration.Rept Submitted Per 10CFR50.73(a)(2)(iv) |
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Mark E. Warner Plant Manager
.g Peach Bottom Atomm Power station 6
v PECO NUCLEAR nm %< c-nv 1848 Lay Road A Unit of PECO Energy oetta. PA 17314-9032 717 456 4244 April 8,1999 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 Docket No. 50-278 SUBJECT: Licensee Event Report, Peach Bottom Atomic Power Statio,1 Unit 3 This Licensee Event Repori reports an Engineered Safety Feature actuation of the Reactor Core isolation Cooling system due to a high steam flow signal during system restoration. This report is being submitted pursuant to 10CFR 50.73(a)(2)(iv).
Reference: Docket No. 50-278 Report Number: 3-99-001 Revision Number: 00 Event Date: 03/12/99 Di >covery Date: 03/12/99 Report Date: 04/08/99 Facility: Peach Bottom Atomic Power Station 1848 Lay Road, Delta, PA 17314 Sincerely.
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FCS:fes enclosure cc:
N. J. Sproul, Public Service Electric & Gas R. R. Janati, Commonwealth of Pennsylvania INPO Records Center H. J. Miller, US NRC, Administrator, Region i R. l. McLean, State of Maryland
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A. C. McMurtray, US NRC, Senior Resident inspector l'
A. F. Kirby 111, DelMarVa Power CCN 99-14031 9904150007 990408 4/
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| 05000278/LER-1999-001, Forwards LER 99-001-00 Re 990312 ESF Actuation of Rcics Due to High Steam Flow Signal During Sys Restoration.Rept Submitted Per 10CFR50.73(a)(2)(iv) | Forwards LER 99-001-00 Re 990312 ESF Actuation of Rcics Due to High Steam Flow Signal During Sys Restoration.Rept Submitted Per 10CFR50.73(a)(2)(iv) | 10 CFR 50.73(a)(2)(iv), System Actuation | | 05000278/LER-1999-001-03, :on 990312,ESF Actuation of Rcics Occurred Due to High Steam Flow Signal During Sys Restoration.Temporary Change to Restoration Procedure Was Initiated to Open RCIC Outboard Steam Isolation Valve in Smaller Increments |
- on 990312,ESF Actuation of Rcics Occurred Due to High Steam Flow Signal During Sys Restoration.Temporary Change to Restoration Procedure Was Initiated to Open RCIC Outboard Steam Isolation Valve in Smaller Increments
| 10 CFR 50.73(a)(2)(iv), System Actuation | | 05000278/LER-1999-002-01, Forwards LER 99-002-01 to Correct Title Contained in Box (4) of LER Coversheet Form.Rev Does Not Change Reportability Requirements or Any Other Info Contained in Original Submittal of LER | Forwards LER 99-002-01 to Correct Title Contained in Box (4) of LER Coversheet Form.Rev Does Not Change Reportability Requirements or Any Other Info Contained in Original Submittal of LER | | | 05000278/LER-1999-002-02, :on 990406,safeguard Sys to Unrelated Door Was Inadvertently Disabled by Security Alarm Station Operator. Caused by Noncompliance with Procedures & Less than Adequate Shift Turnover.Briefed Personnel on Event.With |
- on 990406,safeguard Sys to Unrelated Door Was Inadvertently Disabled by Security Alarm Station Operator. Caused by Noncompliance with Procedures & Less than Adequate Shift Turnover.Briefed Personnel on Event.With
| 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition | | 05000278/LER-1999-002, :on 990406,failure to Maintain Alarmed Access Control to Safeguards Sys Vital Area Door Upon Completion of Scheduled Maint Was Noted.Caused by Noncompliance with Procedures.All Security Personnel Have Been Briefed |
- on 990406,failure to Maintain Alarmed Access Control to Safeguards Sys Vital Area Door Upon Completion of Scheduled Maint Was Noted.Caused by Noncompliance with Procedures.All Security Personnel Have Been Briefed
| | | 05000278/LER-1999-003-03, :on 990814,HPCIS Was Declared Inoperable Due to Erratic Behavior Resulting in Loss of Single High Train Safety Sys.Caused by Weakness in Procedural Guidance. Readjusted Hydraulic Governor Needle Valve.With |
- on 990814,HPCIS Was Declared Inoperable Due to Erratic Behavior Resulting in Loss of Single High Train Safety Sys.Caused by Weakness in Procedural Guidance. Readjusted Hydraulic Governor Needle Valve.With
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function | | 05000277/LER-1999-003, :on 990318,failure to Maintain Provisions of Fire Protection Program Was Noted.Caused by Previous Analysis Which Contained Erroneous Info Re Effects of Sump Room Flooding.Temporary Plant Alterations Were Installed |
- on 990318,failure to Maintain Provisions of Fire Protection Program Was Noted.Caused by Previous Analysis Which Contained Erroneous Info Re Effects of Sump Room Flooding.Temporary Plant Alterations Were Installed
| 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition
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)(x)
10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition
10 CFR 50.73(a)(2) | | 05000278/LER-1999-004-03, :on 990901,3A RPS Bus Was Inadvertently Deenergized,During Planned Mod Activities on Main CR Panel. Caused by Electrician Failing to Self Check Work.All CR Work Was Ceased Immediately & Shutdown Meeting Held |
- on 990901,3A RPS Bus Was Inadvertently Deenergized,During Planned Mod Activities on Main CR Panel. Caused by Electrician Failing to Self Check Work.All CR Work Was Ceased Immediately & Shutdown Meeting Held
| | | 05000278/LER-1999-004, Forwards LER 99-004-00 Re Multiple Unplanned ESF Actuations During Planned Mod Activities in Main Cr,Per Requirements 10CFR50.73(a)(2)(iv) | Forwards LER 99-004-00 Re Multiple Unplanned ESF Actuations During Planned Mod Activities in Main Cr,Per Requirements 10CFR50.73(a)(2)(iv) | 10 CFR 50.73(a)(2) | | 05000277/LER-1999-004, :on 990521,multiple Unplanned Esfas Occurred During Planned Electrical Bus Restoration Following Maint Activities.Caused by Inadequate Configuration Control.Power Was Restored to 3E Transformer Per Plant Procedures |
- on 990521,multiple Unplanned Esfas Occurred During Planned Electrical Bus Restoration Following Maint Activities.Caused by Inadequate Configuration Control.Power Was Restored to 3E Transformer Per Plant Procedures
| 10 CFR 50.73(a)(2)(iv), System Actuation | | 05000278/LER-1999-005-03, :on 990920,uplanned Esfas During Planned Mod Activitives in Main CR Were Noted.Caused by Inattention to Detail by Individuals Performing Work.All CR Mods Were Ceased to Allow Review of Mod Work Packages.With |
- on 990920,uplanned Esfas During Planned Mod Activitives in Main CR Were Noted.Caused by Inattention to Detail by Individuals Performing Work.All CR Mods Were Ceased to Allow Review of Mod Work Packages.With
| 10 CFR 50.73(a)(2)(iv), System Actuation | | 05000277/LER-1999-005-01, :on 990616,failure to Maintain Provisions of FP Program Occurred.Caused by Less than Adequate Engineering Rigor in Both Development & Review Analysis.Fire Watch Immediately Established.With |
- on 990616,failure to Maintain Provisions of FP Program Occurred.Caused by Less than Adequate Engineering Rigor in Both Development & Review Analysis.Fire Watch Immediately Established.With
| 10 CFR 50.73(a)(2) |
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