ENS 54330
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ENS Event | |
|---|---|
16:10 Oct 15, 2019 | |
| Title | High Pressure Coolant Injection (Hpci) System Inoperable |
| Event Description | On 10/15/19 at 1210 [EDT] Peach Bottom discovered a degraded spring hanger (23DBN-H39) associated with Unit 3 High Pressure Coolant Injection (HPCI) system. The hanger is located downstream of MO-3-23-14 HPCI Steam Supply Valve before the HO-3-23-4513 Turbine Stop Valve. A review of the piping and support design analysis were performed and concluded the U3 HPCI turbine inlet nozzle would potentially exceed its allowable stresses. Following Engineering review, U3 HPCI was declared inoperable at 1743 [EDT].
This report is being submitted pursuant to 10 CFR 50.72(b)(3)(v)(D). The NRC Resident Inspector has been notified." |
| Where | |
|---|---|
Peach Bottom  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:+3.07 h0.128 days <br />0.0183 weeks <br />0.00421 months <br />) | |
| Opened: | Jeremy Peters 19:14 Oct 15, 2019 |
| NRC Officer: | Brian Lin |
| Last Updated: | Oct 15, 2019 |
| 54330 - NRC Website | |
Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (81 %) |
| After | Power Operation (81 %) |
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