ENS 55484
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ENS Event | |
|---|---|
18:43 Sep 23, 2021 | |
| Title | High Pressure Coolant Injection System Declared Inoperable |
| Event Description | During planned testing of the Unit 1 HPCI [high pressure coolant injection] system, flow controller oscillations occurred which prevented successful completion of the surveillance test. Operators secured Unit 1 HPCI and declared the system inoperable.
HPCI inoperable placed the licensee in a 14-day limiting condition for operation that was extended to 30 days after their risk-informed completion time evaluation was done. The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
| Limerick Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
| Time - Person (Reporting Time:+0.05 h0.00208 days <br />2.97619e-4 weeks <br />6.849e-5 months <br />) | |
| Opened: | Kris Strausser 18:46 Sep 23, 2021 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Sep 23, 2021 |
| 55484 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
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