Event Notification Report for November 02, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/01/2008 - 11/02/2008
Power Reactor
Event Number: 44622
Facility: PERRY
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: JIM CASE
HQ OPS Officer: HOWIE CROUCH
Region: 3 State: OH
Unit: [1] [] []
RX Type: [1] GE-6
NRC Notified By: JIM CASE
HQ OPS Officer: HOWIE CROUCH
Notification Date: 11/02/2008
Notification Time: 08:16 [ET]
Event Date: 11/02/2008
Event Time: 08:30 [EST]
Last Update Date: 11/02/2008
Notification Time: 08:16 [ET]
Event Date: 11/02/2008
Event Time: 08:30 [EST]
Last Update Date: 11/02/2008
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):
LAURA KOZAK (R3)
LAURA KOZAK (R3)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
EMERGENCY RESPONSE DATA SYSTEM (ERDS) OUT OF SERVICE FOR PLANNED MAINTENANCE
"The Perry Nuclear Power Plant will be taking the Plant Computer out of service for scheduled maintenance which will take ERDS out of service. From 0830 hours EST, on November 2, 2008, for approximately 6 hours, personnel will be resetting computer time from EDT to EST and [will] troubleshoot the Plant Computer. During this planned maintenance, the Safety Parameter Display System (SPDS) and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP) [will] be unavailable.
"In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Plant Branch Exchange, the Off Premise Exchange, and various redundant infra-facility circuits throughout the emergency facilities. The dose assessment function will be maintained during the out of service time period by manual input of data into CADAP and, if required, by manual
calculation. The ability to open and maintain an 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the period of unavailability.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(xiii), as a condition that results in a major loss of offsite communications capability. A follow-up notification will be made when the activities are completed and the equipment is restored. The [NRC] Resident Inspector has been notified."
* * * UPDATE FROM JIM CASE TO JOHN KNOKE AT 1530 EST ON 11/02/08 * * *
The Plant Computer was put back in operation at 1525 EST. Notified R3DO (Kozak)
"The Perry Nuclear Power Plant will be taking the Plant Computer out of service for scheduled maintenance which will take ERDS out of service. From 0830 hours EST, on November 2, 2008, for approximately 6 hours, personnel will be resetting computer time from EDT to EST and [will] troubleshoot the Plant Computer. During this planned maintenance, the Safety Parameter Display System (SPDS) and the automatic mode calculation of the Computer Aided Dose Assessment Program (CADAP) [will] be unavailable.
"In the event of an emergency, plant parameter data will be orally transmitted to the facilities through the Status Board Ring Down circuit with back-up by the Plant Branch Exchange, the Off Premise Exchange, and various redundant infra-facility circuits throughout the emergency facilities. The dose assessment function will be maintained during the out of service time period by manual input of data into CADAP and, if required, by manual
calculation. The ability to open and maintain an 'open line' using the Emergency Notification System will not be affected and will be the primary means of transferring plant data to the NRC as a contingency until the ERDS can be returned to service during the period of unavailability.
"This event is being reported in accordance with 10 CFR 50.72(b)(3)(xiii), as a condition that results in a major loss of offsite communications capability. A follow-up notification will be made when the activities are completed and the equipment is restored. The [NRC] Resident Inspector has been notified."
* * * UPDATE FROM JIM CASE TO JOHN KNOKE AT 1530 EST ON 11/02/08 * * *
The Plant Computer was put back in operation at 1525 EST. Notified R3DO (Kozak)
Power Reactor
Event Number: 44623
Facility: LIMERICK
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK ARNOSKY
HQ OPS Officer: STEVE SANDIN
Region: 1 State: PA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK ARNOSKY
HQ OPS Officer: STEVE SANDIN
Notification Date: 11/02/2008
Notification Time: 20:33 [ET]
Event Date: 11/02/2008
Event Time: 15:50 [EST]
Last Update Date: 11/02/2008
Notification Time: 20:33 [ET]
Event Date: 11/02/2008
Event Time: 15:50 [EST]
Last Update Date: 11/02/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
EUGENE COBEY (R1)
EUGENE COBEY (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
HPCI SYSTEM DECLARED INOPERABLE DUE TO CONTROLLER FAILURE
"The Unit 1 MCR [Main Control Room] HPCI [High Pressure Coolant Injection] flow indicator was observed oscillating just above zero gpm with periodic spikes to approximately 50% of scale (3000 gpm) with a concurrent drop in flow controller output signal while in standby. There were no activities in progress on or near the HPCI system when the oscillation and instrument spikes occurred. Walkdown of the instrument rack and HPCI room equipment found no abnormalities. The HPCI system was declared inoperable at 1550 hours 11/2/2008 (14 day Shutdown LCO). Troubleshooting is in progress to determine the cause of the flow oscillations.
"The HPCI system is considered available as there are no indications of controller failure that would impact operation in manual flow control mode.
"Unit 1 RCIC, and all other ECCS systems remain OPERABLE."
The licensee will inform the NRC Resident Inspector.
"The Unit 1 MCR [Main Control Room] HPCI [High Pressure Coolant Injection] flow indicator was observed oscillating just above zero gpm with periodic spikes to approximately 50% of scale (3000 gpm) with a concurrent drop in flow controller output signal while in standby. There were no activities in progress on or near the HPCI system when the oscillation and instrument spikes occurred. Walkdown of the instrument rack and HPCI room equipment found no abnormalities. The HPCI system was declared inoperable at 1550 hours 11/2/2008 (14 day Shutdown LCO). Troubleshooting is in progress to determine the cause of the flow oscillations.
"The HPCI system is considered available as there are no indications of controller failure that would impact operation in manual flow control mode.
"Unit 1 RCIC, and all other ECCS systems remain OPERABLE."
The licensee will inform the NRC Resident Inspector.