ENS 50629
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ENS Event | |
|---|---|
21:18 Nov 19, 2014 | |
| Title | Fire Penetration Not Meeting Requirements |
| Event Description | During a fire inspection activity involving inspection of fire penetrations that serve as Appendix R barriers, degradation of a fire penetration was identified that was sufficient to prevent this penetration from meeting Appendix R requirements as a 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> fire barrier. In the event of a postulated fire in the affected areas both safe shutdown paths on Unit 1 and 2 could be compromised. Given this information the determination was made that this condition meets the reporting criteria of 10CFR50.72(b)(3)(ii)(B).
Compensatory measures were put in place in accordance with the plant's Fire Hazard Analysis (FHA) for the degraded penetration in the affected fire areas. The presence of the compensatory measures in addition to automatic fire detection in these fire areas ensure that the safe shutdown paths are preserved until the degraded conditions can be corrected. The degraded fire penetration is located between the turbine deck and the main control room. The licensee has notified the NRC Resident Inspector. |
| Where | |
|---|---|
Hatch  Georgia (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | |
| Time - Person (Reporting Time:+0.43 h0.0179 days <br />0.00256 weeks <br />5.89014e-4 months <br />) | |
| Opened: | Kenny Hunter 21:44 Nov 19, 2014 |
| NRC Officer: | Dong Park |
| Last Updated: | Nov 19, 2014 |
| 50629 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 526502017-03-30T13:22:00030 March 2017 13:22:00
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