Regarding High Pressure Coolant Injection Safety System Functional Failure Due to Inoperability of Primary Containment Isolation Valve
Person / Time
ML16263A229
Site:	Browns Ferry
Issue date:	09/19/2016
From:	Bono S Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
LER 16-002-00
Download: ML16263A229 (10)
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LER-2016-002, Regarding High Pressure Coolant Injection Safety System Functional Failure Due to Inoperability of Primary Containment Isolation Valve
LER closed by

Event date:
Report date:
IR 05000259/2016000 (9 November 2016) IR 05000259/2016003 (9 November 2016)
2592016002R00 - NRC Website
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Licensee Event Report

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		Reporting criterion
05000260/LER-2016-001, Regarding High Pressure Coolant Injection Safety System Functional Failure Due to a Blown Fuse and a Failed Relay	Regarding High Pressure Coolant Injection Safety System Functional Failure Due to a Blown Fuse and a Failed Relay	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown
05000259/LER-2016-001, Regarding Failure of 4kV Shutdown Board Normal Feeder Breaker Results in Actuations of Emergency Diesel Generators and Containment Isolation Valves	Regarding Failure of 4kV Shutdown Board Normal Feeder Breaker Results in Actuations of Emergency Diesel Generators and Containment Isolation Valves	10 CFR 50.73(a)(2)(iv)(A), System Actuation
05000296/LER-2016-001, Regarding Inoperable Residual Heat Removal Pump Results in Condition Prohibited by Technical Specifications and Safety System Functional Failure	Regarding Inoperable Residual Heat Removal Pump Results in Condition Prohibited by Technical Specifications and Safety System Functional Failure
05000259/LER-2016-002, Regarding High Pressure Coolant Injection Safety System Functional Failure Due to Inoperability of Primary Containment Isolation Valve	Regarding High Pressure Coolant Injection Safety System Functional Failure Due to Inoperability of Primary Containment Isolation Valve
05000260/LER-2016-002, Regarding High Pressure Coolant Injection System Failure Due to Stuck Contactor	Regarding High Pressure Coolant Injection System Failure Due to Stuck Contactor	10 CFR 50.73(a)(2)(v), Loss of Safety Function
05000296/LER-2016-002, Regarding Improperly Installed Switch Results in Condition Prohibited by Technical Specifications	Regarding Improperly Installed Switch Results in Condition Prohibited by Technical Specifications	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded
05000259/LER-2016-003, Regarding Fire Safe Shutdown Procedures Do Not Consider Potential for Fire-Induced Failure of 4kV Shutdown Board Under-Voltage Trip Functions	Regarding Fire Safe Shutdown Procedures Do Not Consider Potential for Fire-Induced Failure of 4kV Shutdown Board Under-Voltage Trip Functions
05000296/LER-2016-003, Regarding Main Steam Isolation Valve Leaking in Excess of Technical Specification Requirements	Regarding Main Steam Isolation Valve Leaking in Excess of Technical Specification Requirements	10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(ix)(A), Prevented Safety Function in Multiple System 10 CFR 50.73(a)(2)(viii)(B)
05000259/LER-2016-004, Regarding Incorrect Tap Settings for 480V Shutdown Board Transformers Results in Inoperability of Associated 480V Shutdown Boards	Regarding Incorrect Tap Settings for 480V Shutdown Board Transformers Results in Inoperability of Associated 480V Shutdown Boards
05000296/LER-2016-004, Regarding Main Steam Relief Valves Lift Settings Outside of Technical Specifications Required Setpoints	Regarding Main Steam Relief Valves Lift Settings Outside of Technical Specifications Required Setpoints	10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat 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)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown
05000259/LER-2016-005, Regarding Main Steam Relief Valves Lift Settings Outside of Technical Specifications Required Setpoints	Regarding Main Steam Relief Valves Lift Settings Outside of Technical Specifications Required Setpoints	10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition 10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat 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)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B)
05000296/LER-2016-005, Regarding Automatic Depressurization System Valve Inoperability Exceeded Technical Specification Limits	Regarding Automatic Depressurization System Valve Inoperability Exceeded Technical Specification Limits	10 CFR 50.73(a)(2)(iv)(A), System Actuation 10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2)(ix)(A), Prevented Safety Function in Multiple System
05000296/LER-2016-006, Regarding High Pressure Coolant Injection System Found to Be Inoperable During Testing	Regarding High Pressure Coolant Injection System Found to Be Inoperable During Testing	10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(x)

05000259/LER-2016-002, Regarding High Pressure Coolant Injection Safety System Functional Failure Due to Inoperability of Primary Containment Isolation Valve

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