Event Notification Report for October 26, 2014
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/25/2014 - 10/26/2014
Fuel Cycle Facility
Event Number: 50594
Facility: HONEYWELL INTERNATIONAL, INC.
Region: 2 State: IL
Unit: [] [] []
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
NRC Notified By: MARK WOLF
HQ OPS Officer: JOHN SHOEMAKER
Region: 2 State: IL
Unit: [] [] []
RX Type: URANIUM HEXAFLUORIDE PRODUCTION
NRC Notified By: MARK WOLF
HQ OPS Officer: JOHN SHOEMAKER
Notification Date: 11/05/2014
Notification Time: 14:04 [ET]
Event Date: 10/26/2014
Event Time: 19:35 [CDT]
Last Update Date: 11/05/2014
Notification Time: 14:04 [ET]
Event Date: 10/26/2014
Event Time: 19:35 [CDT]
Last Update Date: 11/05/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
BRIAN BONSER (R2DO)
LEN WERT (DEPR)
ROBERT JOHNSON (NMSS)
CATHY HANEY (NMSS)
WILLIAM GOTT (IRD)
BRIAN BONSER (R2DO)
LEN WERT (DEPR)
ROBERT JOHNSON (NMSS)
CATHY HANEY (NMSS)
WILLIAM GOTT (IRD)
DISCOVERY OF AFTER-THE-FACT EMERGENCY CONDITION - ALERT DECLARATION NOT MADE DURING EVENT INVOLVING URANIUM HEXAFLUORIDE LEAK
"On 10/26/14, Honeywell declared a 'Plant Emergency' at 1935 [CDT] in accordance with the Honeywell Emergency Response Plan due to a [Uranium Hexafluoride] UF6 leak on a primary cold trap. The incident was mitigated and the 'All clear' was declared at 0216 on 10/27/14. There were no injuries related to the incident. After review of additional observations and other evidence not directly involved with the response, Honeywell has determined that the event should have been upgraded at 1942 [CDT] on 10/26/14, to an 'Alert' classification per our classification criteria. This notification constitutes the NRC notification related to the incident. Honeywell is currently investigating the cause of the incident."
The licensee has notified NRC Region II and will notify state and local authorities.
"On 10/26/14, Honeywell declared a 'Plant Emergency' at 1935 [CDT] in accordance with the Honeywell Emergency Response Plan due to a [Uranium Hexafluoride] UF6 leak on a primary cold trap. The incident was mitigated and the 'All clear' was declared at 0216 on 10/27/14. There were no injuries related to the incident. After review of additional observations and other evidence not directly involved with the response, Honeywell has determined that the event should have been upgraded at 1942 [CDT] on 10/26/14, to an 'Alert' classification per our classification criteria. This notification constitutes the NRC notification related to the incident. Honeywell is currently investigating the cause of the incident."
The licensee has notified NRC Region II and will notify state and local authorities.
Power Reactor
Event Number: 50702
Facility: PRAIRIE ISLAND
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: MARK LOOSBROCK
HQ OPS Officer: HOWIE CROUCH
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] W-2-LP,[2] W-2-LP
NRC Notified By: MARK LOOSBROCK
HQ OPS Officer: HOWIE CROUCH
Notification Date: 12/23/2014
Notification Time: 13:00 [ET]
Event Date: 10/26/2014
Event Time: 03:40 [CDT]
Last Update Date: 12/23/2014
Notification Time: 13:00 [ET]
Event Date: 10/26/2014
Event Time: 03:40 [CDT]
Last Update Date: 12/23/2014
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
BILLY DICKSON (R3DO)
BILLY DICKSON (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Defueled | 0 | Defueled |
60-DAY OPTIONAL TELEPHONE NOTIFICATION OF INVALID ACTUATION OF RESIDUAL HEAT REMOVAL PUMP
"This 60-day telephone notification is being made under reporting requirements specified by 10 CFR 50.73(a)(2)(iv)(A) and 10 CFR 50.73(a)(1) to describe an invalid actuation of the Unit 1 11 RHR Pump while Unit 1 was at NO MODE. It was a complete actuation. This was not the result of a preplanned sequence during testing and the system was not removed from service.
"At 0340 CDT on October 26, 2014, the Unit 1 11 RHR Pump was noted to have started while investigating an NSSS [nuclear steam supply system] annunciator system ground. The operator verified that the pump had adequate suction path via the RCS Cold Leg and stable pump discharge pressure. The 11 RHR Pump was stopped per the plant's abnormal operating procedure.
"Evaluation of this event has shown that the auto-start of 11 RHR pump was due to a human performance error while performing relay replacements.
"Following troubleshooting of the auto-start and completion of the relay maintenance, the 11 RHR pump was run; the pump and system operated properly. The health and safety of the public was not affected by this issue.
"The licensee has notified the NRC Resident Inspector."
"This 60-day telephone notification is being made under reporting requirements specified by 10 CFR 50.73(a)(2)(iv)(A) and 10 CFR 50.73(a)(1) to describe an invalid actuation of the Unit 1 11 RHR Pump while Unit 1 was at NO MODE. It was a complete actuation. This was not the result of a preplanned sequence during testing and the system was not removed from service.
"At 0340 CDT on October 26, 2014, the Unit 1 11 RHR Pump was noted to have started while investigating an NSSS [nuclear steam supply system] annunciator system ground. The operator verified that the pump had adequate suction path via the RCS Cold Leg and stable pump discharge pressure. The 11 RHR Pump was stopped per the plant's abnormal operating procedure.
"Evaluation of this event has shown that the auto-start of 11 RHR pump was due to a human performance error while performing relay replacements.
"Following troubleshooting of the auto-start and completion of the relay maintenance, the 11 RHR pump was run; the pump and system operated properly. The health and safety of the public was not affected by this issue.
"The licensee has notified the NRC Resident Inspector."