Event Notification Report for April 29, 2019
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/28/2019 - 04/29/2019
Power Reactor
Event Number: 54035
Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: JUSTIN FARELLA
HQ OPS Officer: JEFF HERRERA
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: JUSTIN FARELLA
HQ OPS Officer: JEFF HERRERA
Notification Date: 04/29/2019
Notification Time: 20:01 [ET]
Event Date: 04/29/2019
Event Time: 16:33 [EDT]
Last Update Date: 04/29/2019
Notification Time: 20:01 [ET]
Event Date: 04/29/2019
Event Time: 16:33 [EDT]
Last Update Date: 04/29/2019
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):
JON LILLIENDAHL (R1DO)
JON LILLIENDAHL (R1DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | M/R | Y | 82 | Power Operation | 0 | Hot Shutdown |
MANUAL REACTOR SCRAM DUE TO POWER OSCILLATIONS AND HIGH PRESSURE COOLANT INJECTION SYSTEM INITIATION
"During power ascension on April 29, 2019, at 1630 [EDT], Nine Mile Point Unit 1 power and pressure oscillations were observed with reactor power at approximately 82 [percent]. At time 1633 [EDT], the reactor was manually scrammed when the scram criteria of greater than 4 [percent] APRM power oscillations were observed in accordance with special operating procedures. All control rods fully inserted and all plant systems responded per design following the scram.
"Following the manual scram, the High Pressure Coolant Injection (HPCI) System automatically initiated as expected. At Nine Mile Point Unit 1, a HPCI system actuation signal on low Reactor Pressure Vessel (RPV) level is normally received following a reactor scram, due to level shrink. HPCI is a flow control mode of the normal feedwater systems, and is not an Emergency Core Cooling System. At 1633 [50 seconds after the reactor scram], RPV level was restored above the HPCI System low level actuation setpoint and the HPCI System initiation signal was reset. Pressure control was established on the Turbine Bypass Valves, the preferred system. No Electromatic Relief Valves actuated due to this scram.
"Nine Mile Point Unit 1 is currently in Hot Shutdown, with reactor water level and pressure maintained within normal bands. The offsite grid is stable with no grid restrictions or warnings in effect. The cause of the power oscillations is currently under investigation."
The NRC Resident Inspector was notified.
The New York State public service commission was notified.
"During power ascension on April 29, 2019, at 1630 [EDT], Nine Mile Point Unit 1 power and pressure oscillations were observed with reactor power at approximately 82 [percent]. At time 1633 [EDT], the reactor was manually scrammed when the scram criteria of greater than 4 [percent] APRM power oscillations were observed in accordance with special operating procedures. All control rods fully inserted and all plant systems responded per design following the scram.
"Following the manual scram, the High Pressure Coolant Injection (HPCI) System automatically initiated as expected. At Nine Mile Point Unit 1, a HPCI system actuation signal on low Reactor Pressure Vessel (RPV) level is normally received following a reactor scram, due to level shrink. HPCI is a flow control mode of the normal feedwater systems, and is not an Emergency Core Cooling System. At 1633 [50 seconds after the reactor scram], RPV level was restored above the HPCI System low level actuation setpoint and the HPCI System initiation signal was reset. Pressure control was established on the Turbine Bypass Valves, the preferred system. No Electromatic Relief Valves actuated due to this scram.
"Nine Mile Point Unit 1 is currently in Hot Shutdown, with reactor water level and pressure maintained within normal bands. The offsite grid is stable with no grid restrictions or warnings in effect. The cause of the power oscillations is currently under investigation."
The NRC Resident Inspector was notified.
The New York State public service commission was notified.
Power Reactor
Event Number: 54036
Facility: COOK
Region: 3 State: MI
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BUD HINKLEY
HQ OPS Officer: JEFF HERRERA
Region: 3 State: MI
Unit: [1] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: BUD HINKLEY
HQ OPS Officer: JEFF HERRERA
Notification Date: 04/29/2019
Notification Time: 22:50 [ET]
Event Date: 04/29/2019
Event Time: 20:29 [EDT]
Last Update Date: 04/29/2019
Notification Time: 22:50 [ET]
Event Date: 04/29/2019
Event Time: 20:29 [EDT]
Last Update Date: 04/29/2019
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):
DARIUSZ SZWARC (R3DO)
DARIUSZ SZWARC (R3DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
OFFSITE NOTIFICATION DUE TO A SPURIOUS ACTUATION OF AN EMERGENCY SIREN
"On 4/29/19, at approximately 2029 EDT, the Operations Shift Manager was made aware that the Berrien County Sheriff's Department (BCSD) had been notified of an Emergency Siren that had spuriously actuated. BCSD was notified by local residents. The affected siren has been disabled and it has been verified that all associated local areas still have coverage from other functional emergency sirens.
"The cause of the actuation is under investigation at this time.
"This notification is being made under 10 CFR 50.72(b)(2)(xi), Offsite Notification, as a four (4) hour report."
The licensee has notified the NRC Resident Inspector.
"On 4/29/19, at approximately 2029 EDT, the Operations Shift Manager was made aware that the Berrien County Sheriff's Department (BCSD) had been notified of an Emergency Siren that had spuriously actuated. BCSD was notified by local residents. The affected siren has been disabled and it has been verified that all associated local areas still have coverage from other functional emergency sirens.
"The cause of the actuation is under investigation at this time.
"This notification is being made under 10 CFR 50.72(b)(2)(xi), Offsite Notification, as a four (4) hour report."
The licensee has notified the NRC Resident Inspector.
Power Reactor
Event Number: 54037
Facility: INDIAN POINT
Region: 1 State: NY
Unit: [2] [3] []
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: WAYNE GRIFFIN
HQ OPS Officer: THOMAS KENDZIA
Region: 1 State: NY
Unit: [2] [3] []
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: WAYNE GRIFFIN
HQ OPS Officer: THOMAS KENDZIA
Notification Date: 04/30/2019
Notification Time: 07:37 [ET]
Event Date: 04/29/2019
Event Time: 12:30 [EDT]
Last Update Date: 04/30/2019
Notification Time: 07:37 [ET]
Event Date: 04/29/2019
Event Time: 12:30 [EDT]
Last Update Date: 04/30/2019
Emergency Class: NON EMERGENCY
10 CFR Section:
26.719 - FITNESS FOR DUTY
10 CFR Section:
26.719 - FITNESS FOR DUTY
Person (Organization):
JON LILLIENDAHL (R1DO)
FFD GROUP (EMAIL)
JON LILLIENDAHL (R1DO)
FFD GROUP (EMAIL)
| 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 |
NON-LICENSED SUPERVISOR FAILED FOLLOW-UP TESTING
"A non-licensed employee supervisor had a confirmed positive test for a prohibited substance during a follow-up fitness-for-duty test. The individual's unescorted access to the plant has been terminated.
"The NRC Senior Resident Inspector was notified by the licensee."
"A non-licensed employee supervisor had a confirmed positive test for a prohibited substance during a follow-up fitness-for-duty test. The individual's unescorted access to the plant has been terminated.
"The NRC Senior Resident Inspector was notified by the licensee."