Event Notification Report for January 26, 2004
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
01/25/2004 - 01/26/2004
Power Reactor
Event Number: 40478
Facility: NINE MILE POINT
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: FRED RINGWALD
HQ OPS Officer: ARLON COSTA
Region: 1 State: NY
Unit: [1] [] []
RX Type: [1] GE-2,[2] GE-5
NRC Notified By: FRED RINGWALD
HQ OPS Officer: ARLON COSTA
Notification Date: 01/26/2004
Notification Time: 11:15 [ET]
Event Date: 01/26/2004
Event Time: 09:41 [EST]
Last Update Date: 01/26/2004
Notification Time: 11:15 [ET]
Event Date: 01/26/2004
Event Time: 09:41 [EST]
Last Update Date: 01/26/2004
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
CLIFFORD ANDERSON (R1)
SUSAN FRANT (DIRO)
TERRY REIS (NRR)
TOM YATES (DHS)
KEN SWEETSER (FEMA)
CLIFFORD ANDERSON (R1)
SUSAN FRANT (DIRO)
TERRY REIS (NRR)
TOM YATES (DHS)
KEN SWEETSER (FEMA)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 90 | Power Operation |
UNUSUAL EVENT (TRANSITORY) DUE TO LOW INTAKE BAY LEVEL CAUSED BY ICING
"This is a notification of a transitory Notification of Unusual Event. Nine Mile Point Unit 1 experienced a transitory low intake bay level due to icing. This condition was resolved by shifting circulating water flow from reverse flow to normal flow. This met Emergency Action Level 8.4.3 for low fore bay level less than 238.8 feet. The duration of this event was from 0941 (EST) to 0943.
"While returning reactor power to 100%, an unrelated problem [plant computer] halted power ascension at 92.4% [from a stable 90% reactor power]."
The licensee notified the NRC Resident Inspector and the state and local government through their "warning point" emergency notification system. The Unusual Event was terminated at 0943.
"This is a notification of a transitory Notification of Unusual Event. Nine Mile Point Unit 1 experienced a transitory low intake bay level due to icing. This condition was resolved by shifting circulating water flow from reverse flow to normal flow. This met Emergency Action Level 8.4.3 for low fore bay level less than 238.8 feet. The duration of this event was from 0941 (EST) to 0943.
"While returning reactor power to 100%, an unrelated problem [plant computer] halted power ascension at 92.4% [from a stable 90% reactor power]."
The licensee notified the NRC Resident Inspector and the state and local government through their "warning point" emergency notification system. The Unusual Event was terminated at 0943.
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 40481
Facility: MONTICELLO
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: RANDY SAND
HQ OPS Officer: BILL GOTT
Region: 3 State: MN
Unit: [1] [] []
RX Type: [1] GE-3
NRC Notified By: RANDY SAND
HQ OPS Officer: BILL GOTT
Notification Date: 01/26/2004
Notification Time: 20:20 [ET]
Event Date: 01/26/2004
Event Time: 14:30 [CST]
Last Update Date: 03/23/2004
Notification Time: 20:20 [ET]
Event Date: 01/26/2004
Event Time: 14:30 [CST]
Last Update Date: 03/23/2004
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):
BRUCE BURGESS (R3)
BRUCE BURGESS (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 |
RECIRCULATION FAN ALTERATION AFFECTS ACCIDENT MITIGATION
"V-ERF-11 ('A' Emergency Filtration Train (EFT) recirculation fan) was found to have an improper alteration affecting the fan's shaft speed, and 'A' EFT was declared inoperable. Concurrently, the #12 Emergency Diesel Generator (EDG) was inoperable for planned maintenance, making 'B' EFT inoperable. This condition is a loss of safety function during a design basis accident, and impacts the ability of the plant to mitigate the consequences of an accident."
The licensee notified the NRC Resident Inspector.
* * * UPDATE ON 1/26/04 AT 2112 EST FROM RASK TO GOTT * * *
At 1958 CST the licensee declared the #12 EDG operable and thus the #12 ("B") EFT was also operable. Additionally, at 2010 the licensee declared the #11 ("A") EFT operable.
Notified R3DO (Burgess).
* * * RETRACTION AT 1043 ON 3/23/04 BLAKESLEY TO GOTT * * *
Based on further investigation V-ERF-11 ('A' Emergency Filtration Train (EFT) recirculation fan) would have been able to provide the required flow and would have fulfilled its required safety functions with the improper alterations. Therefore the event was not reportable.
Notified R3DO ( O'Brien).
"V-ERF-11 ('A' Emergency Filtration Train (EFT) recirculation fan) was found to have an improper alteration affecting the fan's shaft speed, and 'A' EFT was declared inoperable. Concurrently, the #12 Emergency Diesel Generator (EDG) was inoperable for planned maintenance, making 'B' EFT inoperable. This condition is a loss of safety function during a design basis accident, and impacts the ability of the plant to mitigate the consequences of an accident."
The licensee notified the NRC Resident Inspector.
* * * UPDATE ON 1/26/04 AT 2112 EST FROM RASK TO GOTT * * *
At 1958 CST the licensee declared the #12 EDG operable and thus the #12 ("B") EFT was also operable. Additionally, at 2010 the licensee declared the #11 ("A") EFT operable.
Notified R3DO (Burgess).
* * * RETRACTION AT 1043 ON 3/23/04 BLAKESLEY TO GOTT * * *
Based on further investigation V-ERF-11 ('A' Emergency Filtration Train (EFT) recirculation fan) would have been able to provide the required flow and would have fulfilled its required safety functions with the improper alterations. Therefore the event was not reportable.
Notified R3DO ( O'Brien).