Event Notification Report for July 18, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/17/2010 - 07/18/2010
EVENT NUMBERS
46106
Power Reactor
Event Number: 46106
Facility: DRESDEN
Region: 3 State: IL
Unit: [] [2] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: RICHARD BROWN
HQ OPS Officer: BILL HUFFMAN
Region: 3 State: IL
Unit: [] [2] [3]
RX Type: [1] GE-1,[2] GE-3,[3] GE-3
NRC Notified By: RICHARD BROWN
HQ OPS Officer: BILL HUFFMAN
Notification Date: 07/18/2010
Notification Time: 23:30 [ET]
Event Date: 07/18/2010
Event Time: 23:30 [CDT]
Last Update Date: 07/19/2010
Notification Time: 23:30 [ET]
Event Date: 07/18/2010
Event Time: 23:30 [CDT]
Last Update Date: 07/19/2010
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):
BILLY DICKSON (R3DO)
BILLY DICKSON (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 3 | N | Y | 100 | Power Operation | 100 | Power Operation |
LOSS OF COMMUNICATIONS CAPABILITY DUE TO PLANNED AT&T FIBER OPTIC CABLE OUTAGE
"The notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii) as a Major Loss of Communication.
"A planned outage of commercial phone lines is scheduled to occur between 0000 and 0800 on Monday, July 19, [2010]. This outage is allowing AT&T to replace phone lines along one of the local roadways. Even though actual work is estimated to take less than four hours, the outage is scheduled for an eight-hour window.
"The impact to the site has been evaluated and the following losses will be experienced.
"Outside Commercial Phone Lines
ENS Line
HPN Line
RSCL
PMCL
ERDS
"This condition is reportable as an event that resulted in a loss of offsite communication capability due to the loss of ENS and HPN. The notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii).
"Satellite and Mobile phones are available to allow contact with offsite agencies and personnel. Communications between Emergency Response Facilities (Main Control Room, Technical Support Center, and Emergency Operation Facility) are available and will not be affected by the outage.
"Information Technology personnel will be at job site and at the plant site during this evolution.
"A follow-up notification will be made following restoration of the communications lines.
"State and affected Local agencies have been made aware of the pending communication outage. The NRC Resident Inspector has been made aware of the ENS notification."
* * * UPDATE FROM PHILLIP PRATER TO VINCE KLCO ON 7/19/10 AT 0407 EDT * * *
Notified that planned cable outage is complete.
Notified the R3DO (Dickson).
"The notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii) as a Major Loss of Communication.
"A planned outage of commercial phone lines is scheduled to occur between 0000 and 0800 on Monday, July 19, [2010]. This outage is allowing AT&T to replace phone lines along one of the local roadways. Even though actual work is estimated to take less than four hours, the outage is scheduled for an eight-hour window.
"The impact to the site has been evaluated and the following losses will be experienced.
"Outside Commercial Phone Lines
ENS Line
HPN Line
RSCL
PMCL
ERDS
"This condition is reportable as an event that resulted in a loss of offsite communication capability due to the loss of ENS and HPN. The notification is being made pursuant to 10 CFR 50.72(b)(3)(xiii).
"Satellite and Mobile phones are available to allow contact with offsite agencies and personnel. Communications between Emergency Response Facilities (Main Control Room, Technical Support Center, and Emergency Operation Facility) are available and will not be affected by the outage.
"Information Technology personnel will be at job site and at the plant site during this evolution.
"A follow-up notification will be made following restoration of the communications lines.
"State and affected Local agencies have been made aware of the pending communication outage. The NRC Resident Inspector has been made aware of the ENS notification."
* * * UPDATE FROM PHILLIP PRATER TO VINCE KLCO ON 7/19/10 AT 0407 EDT * * *
Notified that planned cable outage is complete.
Notified the R3DO (Dickson).