ENS 46899
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ENS Event | |
|---|---|
16:00 May 27, 2011 | |
| Title | Safety Injection Initiated Due to a High Differential Pressure Between Main Steam Lines |
| Event Description | At 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> on May 27, 2011, the plant was in Mode 3 during startup from a refueling outage with the main steam isolation valves closed. When the 'C' main steam isolation valve was opened for stroke testing, a safety injection occurred. The safety injection was due to a differential pressure of greater than 97 PSIG between the 'C' main steam line and the other main steam lines. The emergency core cooling system started and injected water into the Reactor Coolant System. All systems responded as expected. Safety injection was secured and the plant was stabilized in Mode 3.
The licensee has notified the NRC Resident Inspector. Licensee will be notifying the State and local government. |
| Where | |
|---|---|
Summer  South Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
| Time - Person (Reporting Time:+-1.17 h-0.0488 days <br />-0.00696 weeks <br />-0.0016 months <br />) | |
| Opened: | Eric Rumfelt 14:50 May 27, 2011 |
| NRC Officer: | John Knoke |
| Last Updated: | May 27, 2011 |
| 46899 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Hot Standby (0 %) |
| After | Hot Standby (0 %) |
Summer with 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge | |
WEEKMONTHYEARENS 569782024-02-19T07:36:00019 February 2024 07:36:00
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