ML19046A034
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| ML19046A034 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 02/11/2019 |
| From: | Hunter C S NRC/RES/DRA/PRB |
| To: | |
| C. Hunter 415-1394 | |
| References | |
| LER 458-2018-006 | |
| Download: ML19046A034 (11) | |
Text
- containment ventingoperator fails to vent containment given seismic eventnormal containment venting failsboth containment venting pathways failoperators fail to vent containment via the personnel airlockcontainment venting (SBO)*operators fail to declare ELAP when beneficialoperator fails to restore offsite power following FLEX operation (ELAP)operators fail to stage or run or load or refuel 480V portable FLEX dieseloperator fails to recover emergency diesel in 30 minutesoperator fails to recover emergency diesel in 1 houroperator fails to recover emergency diesel in 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />soperator fails to recover emergency diesel in 6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />soperator fails to recover emergency diesel in 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />soperator fails to recover emergency diesel in 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />soperator fails to recover emergency diesel in 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> operators fail to depressurize the reactor during ELAPoperators fail to align and operate SPCoperators fail to stage or run or supply or refill FLEX RPV pump*containment failure causes loss of high pressure injection
- diesel generator B fails to run
- diesel generator A is unavailable because of maintenanceoperator fails to depressurize the reactor (MLOCA-ATWS-SBO)
- DG Cis unavailable because of maintenanceSBO diesel is unavailable because of maintenance*