| | | Reporting criterion |
|---|
| 05000328/LER-2021-001, Ice Bed Inoperable Due to Exceeding Surveillance Requirement Frequency | Ice Bed Inoperable Due to Exceeding Surveillance Requirement Frequency | 10 CFR 50.73(a)(2)(v), Loss of Safety Function |
| 05000327/LER-2021-001, Sequoya Nuclear Plant, Unit 1, Reactor Trip on High Neutron Flux Rate Due to Dropped Control Rods | Sequoya Nuclear Plant, Unit 1, Reactor Trip on High Neutron Flux Rate Due to Dropped Control Rods | 10 CFR 50.73(a)(2)(iv)(A), System Actuation
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)(iv), System Actuation
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)(x)
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)(ix)(A), Prevented Safety Function in Multiple System
10 CFR 50.73(a)(2) |
| 05000328/LER-2021-002, Turbine Trio Function Inoperable Due to Slow to Close Turbine Throttle Valve | Turbine Trio Function Inoperable Due to Slow to Close Turbine Throttle Valve | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000327/LER-2021-002, Letter Forwarding LER 2021-002-00 & LER 2021-001-00 for Sequoyah Nuclear Plant, Units 1 & 2 | Letter Forwarding LER 2021-002-00 & LER 2021-001-00 for Sequoyah Nuclear Plant, Units 1 & 2 | 10 CFR 50.73(a)(2)(v), Loss of Safety Function |
| 05000327/LER-2021-003, Exceeded Breach Margin Renders Both Trains of the Auxiliary Building Gas Treatment System Inoperable | Exceeded Breach Margin Renders Both Trains of the Auxiliary Building Gas Treatment System Inoperable | 10 CFR 50.73(a)(2)(v), Loss of Safety Function
10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
