At around 1:30pm today there was an OSB/Corner station full power outage due to some electical work in the building.  The power was brought back on relatively quickly with a trip into the mech room to the main power box.  All lights in the building went out but fire lights remained on.  Since reasons for the outage were not completely known by all staff, many people congregated at the fire alarm site outside of the Staging Building and a sweep for staff working in the LVEA was done.  No one was in-chamber so all door covers were closed.  Jason immediately put the PSL in "SCI mode" such that the HVAC was in a safe mode of operation. VE has not found anything abnormal in their system. Purge air/Kobelco were checked and functional.  All lights restored so far.  We have executed power outage checks and full computer restarts via the Control Room (TJ main operator, Kissel, Dave, Jonathan, all VE, Tyler, Randy, Bubba, Rahul, Camilla, Austin, Jim, Patrick) and have sent some staff back to work on their earlier projects.  Bubba working on HVAC checks/issue now.  The full checklist details coming from TJ up next... 

All systems seem to work as expected for this "fire drill" and recovery is well underway.