Event Notification Report for November 29, 2000
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/28/2000 - 11/29/2000
EVENT NUMBERS
37556
Fuel Cycle Facility
Event Number: 37556
Facility: PORTSMOUTH GASEOUS DIFFUSION PLANT
Region: 3 State: OH
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: RICK LARSON
HQ OPS Officer: STEVE SANDIN
Region: 3 State: OH
Unit: [] [] []
RX Type: URANIUM ENRICHMENT FACILITY
Comments: 2 DEMOCRACY CENTER
6903 ROCKLEDGE DRIVE
BETHESDA, MD 20817 (301)564-3200
NRC Notified By: RICK LARSON
HQ OPS Officer: STEVE SANDIN
Notification Date: 11/29/2000
Notification Time: 17:11 [ET]
Event Date: 11/29/2000
Event Time: 11:35 [EST]
Last Update Date: 11/29/2000
Notification Time: 17:11 [ET]
Event Date: 11/29/2000
Event Time: 11:35 [EST]
Last Update Date: 11/29/2000
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
MICHAEL JORDAN (R3)
LARRY CAMPER (NMSS)
MICHAEL JORDAN (R3)
LARRY CAMPER (NMSS)
REPORT INVOLVING ACTUATION OF A SAFETY SYSTEM
"AT 1135 HOURS ON 11/29/00 AUTOCLAVE #3 IN THE X-343, EXPERIENCED A HIGH CONDENSATE LEVEL SHUTOFF ACTUATION WHEN BOTH PROBES IN THE CONDENSATE DRAIN LINE FIRED. THIS ACTUATION OCCURRED DURING MODE II OPERATIONS (HEATING), RESULTING IN THE SHUTTING OF THE STEAM ISOLATION VALVE AND SHUTTING DOWN OF THE AUTOCLAVE. OPERATORS FOLLOWING APPROVED RESPONSE PROCEDURES VERIFIED THE CYLINDERS STRUCTURAL INTEGRITY. APPROXIMATELY TEN MINUTES AFTER THE STEAM VALVE SHUT THE HIGH CONDENSATE PROBE ALARMS CLEARED BASED ON THE ACTUATION OF BOTH CONDENSATE LEVEL PROBES. THIS IS BEING REPORTED AS A SAFETY SYSTEM ACTUATION. THE AUTOCLAVE WAS DECLARED INOPERABLE AND ENGINEERING IS EVALUATING THIS SYSTEM ACTUATION. THERE WAS NO RELEASE OF RADIOACTIVE MATERIAL FROM THIS EVENT."
OPERATIONS PERSONNEL INFORMED BOTH THE DOE SITE REPRESENTATIVE AND THE NRC RESIDENT INSPECTOR.
"AT 1135 HOURS ON 11/29/00 AUTOCLAVE #3 IN THE X-343, EXPERIENCED A HIGH CONDENSATE LEVEL SHUTOFF ACTUATION WHEN BOTH PROBES IN THE CONDENSATE DRAIN LINE FIRED. THIS ACTUATION OCCURRED DURING MODE II OPERATIONS (HEATING), RESULTING IN THE SHUTTING OF THE STEAM ISOLATION VALVE AND SHUTTING DOWN OF THE AUTOCLAVE. OPERATORS FOLLOWING APPROVED RESPONSE PROCEDURES VERIFIED THE CYLINDERS STRUCTURAL INTEGRITY. APPROXIMATELY TEN MINUTES AFTER THE STEAM VALVE SHUT THE HIGH CONDENSATE PROBE ALARMS CLEARED BASED ON THE ACTUATION OF BOTH CONDENSATE LEVEL PROBES. THIS IS BEING REPORTED AS A SAFETY SYSTEM ACTUATION. THE AUTOCLAVE WAS DECLARED INOPERABLE AND ENGINEERING IS EVALUATING THIS SYSTEM ACTUATION. THERE WAS NO RELEASE OF RADIOACTIVE MATERIAL FROM THIS EVENT."
OPERATIONS PERSONNEL INFORMED BOTH THE DOE SITE REPRESENTATIVE AND THE NRC RESIDENT INSPECTOR.