Event Notification Report for July 16, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/15/2002 - 07/16/2002
EVENT NUMBERS
39067
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 39067
Facility: HOPE CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: DANIEL J. BOYLE
HQ OPS Officer: STEVE SANDIN
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: DANIEL J. BOYLE
HQ OPS Officer: STEVE SANDIN
Notification Date: 07/16/2002
Notification Time: 18:15 [ET]
Event Date: 07/16/2002
Event Time: 13:19 [EDT]
Last Update Date: 08/22/2002
Notification Time: 18:15 [ET]
Event Date: 07/16/2002
Event Time: 13:19 [EDT]
Last Update Date: 08/22/2002
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):
JAMES LINVILLE (R1)
JAMES LINVILLE (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 |
TECH SPEC 3.0.3 ENTERED AFTER DECLARING BOTH TRAINS OF CONTROL ROOM VENTILATION INOPERABLE
"On 7/16/02 at 1319 hours, the Hope Creek Generating Station experienced a trip of the in-service 'B' train of Control Room Ventilation and it's associated Chiller. The standby 'A' Train attempted to start, but it's chilled water pump tripped precluding a successful start. This condition rendered both trains of Control Room Emergency Filtration INOPERABLE. In accordance with Technical Specifications 3.7.2, both trains were declared Inoperable and Technical Specification 3.0.3 was entered. At 1400 hours the 'B' Control Room Ventilation train was successfully restored to service and Operable status and Technical Specification 3.0.3 was exited. This event is being reported in accordance with 10CFR50.72(b)(3)(v) because both trains of Control Room Emergency filtration were unavailable for approximately 40 minutes. There was no power reduction associated with this event. No additional safety related equipment was inoperable at the time of the event.
"The initiating condition is still under investigation, but is believed to have been induced as the result of an associated cooling coil fill evolution that caused a low head tank level and potential air induction that resulted in the trip of the in-service cooling train and subsequently the standby train. As of the time of this report the 'A' Control Room Emergency Filtration Train is still inoperable pending completion of fill and vent of the supporting chilled water system."
The licensee will inform the Lower Alloways Creek Township and has informed the NRC Resident Inspector.
***RETRACTION ON 08/22/02 AT 1021 ET BY ERV PARKER TAKEN BY MACKINNON****
"Subsequent evaluation determined that if a postulated accident had occurred during the time that both trains of the Control Room Emergency Ventilation system were INOPERABLE, control room dose would be less than the acceptance criteria specified in 10CFR50.67 and Regulatory Guide 1.183 and bounded by our current analysis. The site boundary doses are not affected. The dose impact of the condition as it existed would be bounded by the current analysis. Thus, the safety function would have been fulfilled, and the notification event number 39067 is retracted" R1DO (Cliff Anderson) notified.
The NRC Resident Inspector will be notified of this event by the licensee.
"On 7/16/02 at 1319 hours, the Hope Creek Generating Station experienced a trip of the in-service 'B' train of Control Room Ventilation and it's associated Chiller. The standby 'A' Train attempted to start, but it's chilled water pump tripped precluding a successful start. This condition rendered both trains of Control Room Emergency Filtration INOPERABLE. In accordance with Technical Specifications 3.7.2, both trains were declared Inoperable and Technical Specification 3.0.3 was entered. At 1400 hours the 'B' Control Room Ventilation train was successfully restored to service and Operable status and Technical Specification 3.0.3 was exited. This event is being reported in accordance with 10CFR50.72(b)(3)(v) because both trains of Control Room Emergency filtration were unavailable for approximately 40 minutes. There was no power reduction associated with this event. No additional safety related equipment was inoperable at the time of the event.
"The initiating condition is still under investigation, but is believed to have been induced as the result of an associated cooling coil fill evolution that caused a low head tank level and potential air induction that resulted in the trip of the in-service cooling train and subsequently the standby train. As of the time of this report the 'A' Control Room Emergency Filtration Train is still inoperable pending completion of fill and vent of the supporting chilled water system."
The licensee will inform the Lower Alloways Creek Township and has informed the NRC Resident Inspector.
***RETRACTION ON 08/22/02 AT 1021 ET BY ERV PARKER TAKEN BY MACKINNON****
"Subsequent evaluation determined that if a postulated accident had occurred during the time that both trains of the Control Room Emergency Ventilation system were INOPERABLE, control room dose would be less than the acceptance criteria specified in 10CFR50.67 and Regulatory Guide 1.183 and bounded by our current analysis. The site boundary doses are not affected. The dose impact of the condition as it existed would be bounded by the current analysis. Thus, the safety function would have been fulfilled, and the notification event number 39067 is retracted" R1DO (Cliff Anderson) notified.
The NRC Resident Inspector will be notified of this event by the licensee.