ENS 47998
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ENS Event | |
|---|---|
08:27 Jun 6, 2012 | |
| Title | Inadequate Cooling Available to Support Electrical Power Systems |
| Event Description | Wolf Creek commenced a nuclear plant shutdown in accordance with Technical Specifications. Engineering analysis has determined that with one non-functional Class IE A/C unit, there is inadequate cooling available to support electrical power systems required by Technical Specifications (TS) 3.8.4, 3.8.7, 3.8.9, during all postulated conditions. Actions are currently underway to restore the non-functional Class IE A/C unit to a functional status.
The non-functional Class IE A/C unit had a clogged oil pump strainer. Per TS 3.0.3, Wolf Creek began reducing power and was at 89% power at the time of the report. The licensee has notified the NRC Resident Inspector.
The A Class IE A/C unit was restored to functional at 6/6/2012 0505 CDT. The plant shutdown was terminated at 87 percent power. Actions are underway to restore the unit to 100 percent power. Notified R4DO (Gepford). |
| Where | |
|---|---|
Wolf Creek  Kansas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-3.13 h-0.13 days <br />-0.0186 weeks <br />-0.00429 months <br />) | |
| Opened: | Warren Brandt 05:19 Jun 6, 2012 |
| NRC Officer: | Dong Park |
| Last Updated: | Jun 6, 2012 |
| 47998 - NRC Website | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 545082020-02-02T00:45:0002 February 2020 00:45:00
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