Event Notification Report for October 12, 2005
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
10/11/2005 - 10/12/2005
Power Reactor
Event Number: 42052
Facility: SAINT LUCIE
Region: 2 State: FL
Unit: [1] [] []
RX Type: [1] CE,[2] CE
NRC Notified By: ALAN HALL
HQ OPS Officer: BILL HUFFMAN
Region: 2 State: FL
Unit: [1] [] []
RX Type: [1] CE,[2] CE
NRC Notified By: ALAN HALL
HQ OPS Officer: BILL HUFFMAN
Notification Date: 10/12/2005
Notification Time: 16:53 [ET]
Event Date: 10/12/2005
Event Time: 14:40 [EDT]
Last Update Date: 10/12/2005
Notification Time: 16:53 [ET]
Event Date: 10/12/2005
Event Time: 14:40 [EDT]
Last Update Date: 10/12/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
Person (Organization):
THOMAS DECKER (R2)
THOMAS DECKER (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
TECHNICAL SPECIFICATION SHUTDOWN BASED ON LOSS OF TWO CHANNELS OF CONTAINMENT ISOLATION RADIATION MONITOR
On 10/12/05 at 14:40 EDT, Unit 1 experienced a loss of Channel A of the CIS (Containment Isolation Signal) Radiation Monitor which, when combined with the previous existing inoperability of Channel D of the CIS radiation monitor, required Unit 1 to enter technical specification LCO 3.0.3. If the action statement [for the CIS], LCO 3.3.2.1, cannot be met, within 1 hour, action shall be initiated to place the unit in Hot Standby with the next 6 hours, Hot Shutdown within the following 6 hours, and cold shutdown within the subsequent 24 hours. Unit shutdown is in progress.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM LICENSEE (C. MARPLE) TO NRC (HUFFMAN) AT 2145 EDT ON 10/12/05 * * *
At 2101 EDT on 10/12/05, the Unit 1 exited Technical Specification 3.0.3 when Channel D of the CIS radiation monitor was returned to service. The down-power of Unit 1 was halted at 97% power.
The licensee notified the NRC Resident Inspector. R2DO(Decker) informed.
On 10/12/05 at 14:40 EDT, Unit 1 experienced a loss of Channel A of the CIS (Containment Isolation Signal) Radiation Monitor which, when combined with the previous existing inoperability of Channel D of the CIS radiation monitor, required Unit 1 to enter technical specification LCO 3.0.3. If the action statement [for the CIS], LCO 3.3.2.1, cannot be met, within 1 hour, action shall be initiated to place the unit in Hot Standby with the next 6 hours, Hot Shutdown within the following 6 hours, and cold shutdown within the subsequent 24 hours. Unit shutdown is in progress.
The licensee notified the NRC Resident Inspector.
* * * UPDATE FROM LICENSEE (C. MARPLE) TO NRC (HUFFMAN) AT 2145 EDT ON 10/12/05 * * *
At 2101 EDT on 10/12/05, the Unit 1 exited Technical Specification 3.0.3 when Channel D of the CIS radiation monitor was returned to service. The down-power of Unit 1 was halted at 97% power.
The licensee notified the NRC Resident Inspector. R2DO(Decker) informed.
Power Reactor
Event Number: 42053
Facility: PALISADES
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: GEORGE SLEEPER
HQ OPS Officer: BILL HUFFMAN
Region: 3 State: MI
Unit: [1] [] []
RX Type: [1] CE
NRC Notified By: GEORGE SLEEPER
HQ OPS Officer: BILL HUFFMAN
Notification Date: 10/12/2005
Notification Time: 21:55 [ET]
Event Date: 10/12/2005
Event Time: 17:09 [EDT]
Last Update Date: 10/13/2005
Notification Time: 21:55 [ET]
Event Date: 10/12/2005
Event Time: 17:09 [EDT]
Last Update Date: 10/13/2005
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):
DAVE PASSEHL (R3)
DAVE PASSEHL (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 |
PARTIAL LOSS OF PLANT PROCESS COMPUTER
"Portions of the Palisades Plant Process Computer (PPC) including the Emergency Response Data System (ERDS) became inoperable due to failure of a plant inverter (EY-210). The failed inverter supplies power to portions of the PPC. The inverter failed for unknown reasons. Options for bypassing the inverter and inverter repairs are being evaluated."
The licensee notified the NRC Resident Inspector.
* * *UPDATE PROVIDED BY MULFORD TO ROTTON AT 0511 EDT ON 10/13/05 * * *
At 0500 the Palisades Plant Process Computer (PPC) including ERDS was declared operable after bypassing plant inverter EY-210 per plant procedure and restoring power to equipment.
The licensee notified the NRC Resident Inspector.
"Portions of the Palisades Plant Process Computer (PPC) including the Emergency Response Data System (ERDS) became inoperable due to failure of a plant inverter (EY-210). The failed inverter supplies power to portions of the PPC. The inverter failed for unknown reasons. Options for bypassing the inverter and inverter repairs are being evaluated."
The licensee notified the NRC Resident Inspector.
* * *UPDATE PROVIDED BY MULFORD TO ROTTON AT 0511 EDT ON 10/13/05 * * *
At 0500 the Palisades Plant Process Computer (PPC) including ERDS was declared operable after bypassing plant inverter EY-210 per plant procedure and restoring power to equipment.
The licensee notified the NRC Resident Inspector.
Power Reactor
Event Number: 42054
Facility: LIMERICK
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK CRIM
HQ OPS Officer: JEFF ROTTON
Region: 1 State: PA
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: MARK CRIM
HQ OPS Officer: JEFF ROTTON
Notification Date: 10/12/2005
Notification Time: 23:55 [ET]
Event Date: 10/12/2005
Event Time: 22:24 [EDT]
Last Update Date: 10/13/2005
Notification Time: 23:55 [ET]
Event Date: 10/12/2005
Event Time: 22:24 [EDT]
Last Update Date: 10/13/2005
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
JAMES DWYER (R1)
JAMES DWYER (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
AUTOMATIC SCRAM DUE TO REACTOR HIGH PRESSURE SIGNAL
"Unit 2 Reactor automatically scrammed at 2224 [EDT] as a result of an RPS actuation due to Reactor High Pressure. All control rods inserted. The plant is stable. No ECCS or SRV actuation occurred. This report is made pursuant to 50.72(B)(2)(iv)(B). An investigation into the cause is currently in progress."
Electric plant lineup is in a normal stable lineup. Reactor water level is being maintained via main feedwater system and removing decay heat via the steam bypass valves to the main condenser. This event had no effect on Unit 1.
The licensee notified the NRC Resident Inspector, Pennsylvania Emergency Management Agency (PEMA), and the Berks, Chester, and Montgomery County emergency agencies.
"Unit 2 Reactor automatically scrammed at 2224 [EDT] as a result of an RPS actuation due to Reactor High Pressure. All control rods inserted. The plant is stable. No ECCS or SRV actuation occurred. This report is made pursuant to 50.72(B)(2)(iv)(B). An investigation into the cause is currently in progress."
Electric plant lineup is in a normal stable lineup. Reactor water level is being maintained via main feedwater system and removing decay heat via the steam bypass valves to the main condenser. This event had no effect on Unit 1.
The licensee notified the NRC Resident Inspector, Pennsylvania Emergency Management Agency (PEMA), and the Berks, Chester, and Montgomery County emergency agencies.