Event Notification Report for July 13, 2014
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/12/2014 - 07/13/2014
Power Reactor
Event Number: 50277
Facility: BROWNS FERRY
Region: 2 State: AL
Unit: [1] [2] [3]
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: NEEL SHUKLA
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: AL
Unit: [1] [2] [3]
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: NEEL SHUKLA
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 07/13/2014
Notification Time: 21:35 [ET]
Event Date: 07/13/2014
Event Time: 17:40 [CDT]
Last Update Date: 07/13/2014
Notification Time: 21:35 [ET]
Event Date: 07/13/2014
Event Time: 17:40 [CDT]
Last Update Date: 07/13/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
ANTHONY MASTERS (R2DO)
ANTHONY MASTERS (R2DO)
| 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 |
| 3 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION OF A ONE GALLON DIESEL FUEL OIL SPILL
"On 07/13/2014 at approximately 1740 [CDT], it was reported that oil sheen was visible in the intake fore bay. Upon further investigation it was determined that a high cold water channel level had caused diesel fuel oil to wash free from an oil drain device from the channel diesel fire pump into the intake fore bay. This oil spill is reportable to the EPA (National Response Center under 40CFR112). Notification to the National Response Center was made at 1750 [CDT]. Notification number is 1088951.
"A total of <1 gallon was reported to enter US waters. The source of the leak into the intake fore bay and cold water channel has been stopped. All reportable oil spillage has been contained in the intake fore bay (considered US waters).
"Additional notifications have been made to Alabama Emergency Management.
"This event requires a 4 hour report pursuant to 10 CFR 50.72(b)(2)(xi), 'Any event or situation, related to the health and safety of the public or onsite personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made.'
"The NRC Resident Inspector has been notified."
Notified DOE, EPA, USDA, HHS, and FEMA.
"On 07/13/2014 at approximately 1740 [CDT], it was reported that oil sheen was visible in the intake fore bay. Upon further investigation it was determined that a high cold water channel level had caused diesel fuel oil to wash free from an oil drain device from the channel diesel fire pump into the intake fore bay. This oil spill is reportable to the EPA (National Response Center under 40CFR112). Notification to the National Response Center was made at 1750 [CDT]. Notification number is 1088951.
"A total of <1 gallon was reported to enter US waters. The source of the leak into the intake fore bay and cold water channel has been stopped. All reportable oil spillage has been contained in the intake fore bay (considered US waters).
"Additional notifications have been made to Alabama Emergency Management.
"This event requires a 4 hour report pursuant to 10 CFR 50.72(b)(2)(xi), 'Any event or situation, related to the health and safety of the public or onsite personnel, or protection of the environment, for which a news release is planned or notification to other government agencies has been or will be made.'
"The NRC Resident Inspector has been notified."
Notified DOE, EPA, USDA, HHS, and FEMA.
Power Reactor
Event Number: 50278
Facility: WATTS BAR
Region: 2 State: TN
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MATTHEW ROBERTSON
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: TN
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: MATTHEW ROBERTSON
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 07/13/2014
Notification Time: 23:13 [ET]
Event Date: 07/13/2014
Event Time: 19:37 [EDT]
Last Update Date: 07/13/2014
Notification Time: 23:13 [ET]
Event Date: 07/13/2014
Event Time: 19:37 [EDT]
Last Update Date: 07/13/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
ANTHONY MASTERS (R2DO)
ANTHONY MASTERS (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | M/R | Y | 100 | Power Operation | 0 | Hot Standby |
MANUAL REACTOR TRIP DUE TO AUTOMATIC FEEDWATER HEATER ISOLATION
"On July 13, 2014 at 1937 [EDT], Watts Bar Nuclear Plant Unit 1 reactor was manually tripped due to automatic isolation of all low pressure feedwater heaters. Concurrent with the reactor trip the Auxiliary Feedwater system actuated as designed.
"All Control and Shutdown rods fully inserted. All safety systems responded as designed. The unit is currently stable in Mode 3, with decay heat removal via Auxiliary Feedwater, steam dumps and the main condenser. The station is in a normal shutdown electrical alignment.
"The cause is currently under investigation.
"This is being reported under 10CFR 50.72(b)(3)(iv)(A) and 10CFR 50.72 (b)(2)(iv)(B).
"The NRC Senior Resident [Inspector] has been notified."
Initial indications are that a level switch failed on the #7 heater drain tank which caused the heater drain tank pumps to trip. When the high level tank setpoint was reached, the feedwater system isolated.
"On July 13, 2014 at 1937 [EDT], Watts Bar Nuclear Plant Unit 1 reactor was manually tripped due to automatic isolation of all low pressure feedwater heaters. Concurrent with the reactor trip the Auxiliary Feedwater system actuated as designed.
"All Control and Shutdown rods fully inserted. All safety systems responded as designed. The unit is currently stable in Mode 3, with decay heat removal via Auxiliary Feedwater, steam dumps and the main condenser. The station is in a normal shutdown electrical alignment.
"The cause is currently under investigation.
"This is being reported under 10CFR 50.72(b)(3)(iv)(A) and 10CFR 50.72 (b)(2)(iv)(B).
"The NRC Senior Resident [Inspector] has been notified."
Initial indications are that a level switch failed on the #7 heater drain tank which caused the heater drain tank pumps to trip. When the high level tank setpoint was reached, the feedwater system isolated.