Event Notification Report for March 31, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/30/2002 - 03/31/2002
EVENT NUMBERS
38818
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 38818
Facility: SUSQUEHANNA
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GORDON ROBINSON
HQ OPS Officer: FANGIE JONES
Region: 1 State: PA
Unit: [1] [2] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: GORDON ROBINSON
HQ OPS Officer: FANGIE JONES
Notification Date: 03/31/2002
Notification Time: 05:32 [ET]
Event Date: 03/31/2002
Event Time: 04:10 [EST]
Last Update Date: 04/08/2002
Notification Time: 05:32 [ET]
Event Date: 03/31/2002
Event Time: 04:10 [EST]
Last Update Date: 04/08/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD 50.72(b)(3)(v)(B) - POT RHR INOP 50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(v)(A) - POT UNABLE TO SAFE SD 50.72(b)(3)(v)(B) - POT RHR INOP 50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL 50.72(b)(3)(v)(D) - ACCIDENT MITIGATION
Person (Organization):
WILLIAM RULAND (R1)
WILLIAM RULAND (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Cold Shutdown | 0 | Cold Shutdown |
| 2 | N | Y | 87 | Power Operation | 87 | Power Operation |
DIESEL GENERATORS DECLARED INOPERABLE FOR SHORT TIME PERIOD
"During performance of 24 month Division 1 Diesel Generator LOCA/LOOP surveillance testing, two pump start timers failed to meet the required acceptance criteria. The A RHR Pump timer actuated at 3.72 seconds (criteria: 2.7 sec. to 3.6 sec) and the C ESW Pump timer actuated at 39.24 seconds (criteria: 39.6 sec. to 48.4 sec). With failure of the timers proper loading on the Diesel Generators is not assured, and they ['A' and 'C'] were declared inoperable until the associated pump control breakers were opened. The Susquehanna safety analysis requires three operable Diesel Generators to safely shutdown the plant. Therefore with only two operable Diesel Generators, the condition requires an 8 hr ENS notification in accordance with 10CFR50.72(b)(3)(v) and (vi)."
With Unit 1 shutdown the 'A' RHR pump is not needed, but the 'C' ESW pump does need to be operable resulting in part of the 8 hour report.
The licensee notified the NRC Resident Inspector.
* * * RETRACTED ON 04/08/2002 AT 1433 EDT BY GRANT FERNSLER TO GERRY WAIG * * *
"On 3/31/2002, Susquehanna LLC made an ENS notification per 10CFR50.72(b)(3)(v) and (vi). The event was the result of two load sequence timers for separate diesel generators found outside of the allowable values. The associated diesel generators were declared inoperable.
"Upon subsequent engineering review, it was determined that although the timers were not within the design specifications all equipment would have been able to perform its safety function, as evidenced by the emergency generators maintaining voltage and frequency, and the loads energizing and running during the testing. Additionally, the requirements of the Technical Specification Actions were followed for all inoperable equipment.
With all equipment remaining capable of performing its design function, this ENS Notification EN#38818 is retracted."
"The NRC Resident Inspector was notified by the licensee.
The R1DO (Bradley Fewell) was notified by the Headquarters Operations Officer.
"During performance of 24 month Division 1 Diesel Generator LOCA/LOOP surveillance testing, two pump start timers failed to meet the required acceptance criteria. The A RHR Pump timer actuated at 3.72 seconds (criteria: 2.7 sec. to 3.6 sec) and the C ESW Pump timer actuated at 39.24 seconds (criteria: 39.6 sec. to 48.4 sec). With failure of the timers proper loading on the Diesel Generators is not assured, and they ['A' and 'C'] were declared inoperable until the associated pump control breakers were opened. The Susquehanna safety analysis requires three operable Diesel Generators to safely shutdown the plant. Therefore with only two operable Diesel Generators, the condition requires an 8 hr ENS notification in accordance with 10CFR50.72(b)(3)(v) and (vi)."
With Unit 1 shutdown the 'A' RHR pump is not needed, but the 'C' ESW pump does need to be operable resulting in part of the 8 hour report.
The licensee notified the NRC Resident Inspector.
* * * RETRACTED ON 04/08/2002 AT 1433 EDT BY GRANT FERNSLER TO GERRY WAIG * * *
"On 3/31/2002, Susquehanna LLC made an ENS notification per 10CFR50.72(b)(3)(v) and (vi). The event was the result of two load sequence timers for separate diesel generators found outside of the allowable values. The associated diesel generators were declared inoperable.
"Upon subsequent engineering review, it was determined that although the timers were not within the design specifications all equipment would have been able to perform its safety function, as evidenced by the emergency generators maintaining voltage and frequency, and the loads energizing and running during the testing. Additionally, the requirements of the Technical Specification Actions were followed for all inoperable equipment.
With all equipment remaining capable of performing its design function, this ENS Notification EN#38818 is retracted."
"The NRC Resident Inspector was notified by the licensee.
The R1DO (Bradley Fewell) was notified by the Headquarters Operations Officer.