ENS 51880
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ENS Event | |
|---|---|
11:07 Apr 25, 2016 | |
| Title | High Pressure Coolant Injection System Declared Inoperable |
| Event Description | On April 25, 2016, at 0607 hours0.00703 days <br />0.169 hours <br />0.001 weeks <br />2.309635e-4 months <br /> [CDT], HPCI [High Pressure Coolant Injection] was isolated via the HPCI MO 2-2301-4 (HPCI Inboard Main Steam Isolation Valve) to stop a packing leak on the HPCI MO 2-2301-5 (HPCI Outboard Main Steam Isolation Valve). The packing leak was causing a steam plume potentially impacting the motor operator on the 2-2301-5 valve. HPCI was declared inoperable and T.S. 3.5.1 Condition G was entered.
Since HPCI is a single train safety system, this notification is being made in accordance with 10CFR50.72 (b)(3)(v)(D), as an event or condition that could have prevented the fulfillment of a safety function. The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
| Quad Cities Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
| Time - Person (Reporting Time:+1.53 h0.0638 days <br />0.00911 weeks <br />0.0021 months <br />) | |
| Opened: | Mike Graham 12:39 Apr 25, 2016 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Apr 25, 2016 |
| 51880 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
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