[An] Unusual Event [was declared] due to a fire in the protected area not extinguished in less than 60 minutes.
Main power transformer 3 faulted, the unit auto scrammed, all rods are in. The fire went out at 0622 CDT. [The licensee] is monitoring for re-flash.
The unit automatically scrammed and all rods fully inserted. Decay heat removal is through the condenser. Unit 2 is unaffected and remains at 100 percent power.
The licensee notified the NRC Resident Inspector and R3 Branch Chief (Riemer).
Notified DHS SWO, FEMA Operations Center, CISA Central, FEMA NWC (email), and DHS Nuclear SSA (email).
- * * UPDATE ON 10/16/21 AT 0848 EDT FROM DAVID KIJOWSKI TO BETHANY CECERE * * *
The Unusual Event was terminated at 0709 CDT.
Notified R3DO (Pelke),
NRR EO (Felts), IR
MOC (Kennedy),
DHS SWO,
FEMA Operations Center, CISA Central,
FEMA NWC (email), and
DHS Nuclear
SSA (email).