Event Notification Report for September 21, 2013
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/20/2013 - 09/21/2013
EVENT NUMBERS
49375
Power Reactor
Event Number: 49375
Facility: BYRON
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRYAN BERGEON
HQ OPS Officer: HOWIE CROUCH
Region: 3 State: IL
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BRYAN BERGEON
HQ OPS Officer: HOWIE CROUCH
Notification Date: 09/21/2013
Notification Time: 19:07 [ET]
Event Date: 09/21/2013
Event Time: 15:31 [CDT]
Last Update Date: 09/21/2013
Notification Time: 19:07 [ET]
Event Date: 09/21/2013
Event Time: 15:31 [CDT]
Last Update Date: 09/21/2013
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
KENNETH RIEMER (R3DO)
KENNETH RIEMER (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF COMMERCIAL AND ENS COMMUNICATIONS DUE TO AN AREA PHONE OUTAGE
"At 1531 CDT, Byron Station was contacted via NARS [Nuclear Accident Reporting System] phone line by the Illinois Emergency Management Agency (IEMA) that an issue exists for the phone systems in the Byron area. Byron subsequently contacted lEMA via the NARS phone and was able to communicate with lEMA. At 1536 CDT, the ENS phone was verified to not be functioning and at 1541 CDT NRC Headquarters was contacted via Byron Main Control Room cell phone to report the failure of the ENS and commercial phones. The Byron Station Main Control Room cell phone is functioning normally. The loss of ENS and commercial phone capability is reportable under 10CFR50.72(b)(3)(xiii). The cause of the loss of phone capability is not known but is under investigation and an update will be provided upon restoration."
ERDS has been verified as operable and the licensee is transmitting data.
The licensee has notified the NRC Resident Inspector.
"At 1531 CDT, Byron Station was contacted via NARS [Nuclear Accident Reporting System] phone line by the Illinois Emergency Management Agency (IEMA) that an issue exists for the phone systems in the Byron area. Byron subsequently contacted lEMA via the NARS phone and was able to communicate with lEMA. At 1536 CDT, the ENS phone was verified to not be functioning and at 1541 CDT NRC Headquarters was contacted via Byron Main Control Room cell phone to report the failure of the ENS and commercial phones. The Byron Station Main Control Room cell phone is functioning normally. The loss of ENS and commercial phone capability is reportable under 10CFR50.72(b)(3)(xiii). The cause of the loss of phone capability is not known but is under investigation and an update will be provided upon restoration."
ERDS has been verified as operable and the licensee is transmitting data.
The licensee has notified the NRC Resident Inspector.