Event Notification Report for June 19, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
06/18/2002 - 06/19/2002
Power Reactor
Event Number: 39003
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: EUMAR HENSON
HQ OPS Officer: FANGIE JONES
Region: 4 State: MO
Unit: [1] [] []
RX Type: [1] W-4-LP
NRC Notified By: EUMAR HENSON
HQ OPS Officer: FANGIE JONES
Notification Date: 06/19/2002
Notification Time: 16:30 [ET]
Event Date: 06/19/2002
Event Time: 14:30 [CDT]
Last Update Date: 06/19/2002
Notification Time: 16:30 [ET]
Event Date: 06/19/2002
Event Time: 14:30 [CDT]
Last Update Date: 06/19/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION 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)(D) - ACCIDENT MITIGATION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION 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)(D) - ACCIDENT MITIGATION
Person (Organization):
CHARLES MARSCHALL (R4)
CHARLES MARSCHALL (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
POTENTIAL FOR HOT-SHORT CAUSING THE RWST TO DRAIN
"On 6/7/02, Wolf Creek Nuclear Operation Corporation notified Callaway Plant of a potential hot short issue involving the possibility to drain the Refueling Water Storage Tank to the containment recirculation sump during a fire. Initial evaluations indicate a potential for this issue to be applicable to Callaway Plant.
"The issue discovered was that control cables for 2 redundant motor operated valves are routed in the same electrical raceway. The 2 valves are on the same electrical separation group, but are redundant in their function of conserving water inventory in the RWST. Further investigation determined that the other electrical separation group has the same configuration. The licensee has implemented an hourly fire watch as a compensatory action. Engineering analyses are being conducted to determine if further modifications are necessary. Appropriate changes or compensations will be instituted into the corrective action system as identified."
The licensee informed the NRC Resident Inspection.
Related Event #38970 at Wolf Creek
"On 6/7/02, Wolf Creek Nuclear Operation Corporation notified Callaway Plant of a potential hot short issue involving the possibility to drain the Refueling Water Storage Tank to the containment recirculation sump during a fire. Initial evaluations indicate a potential for this issue to be applicable to Callaway Plant.
"The issue discovered was that control cables for 2 redundant motor operated valves are routed in the same electrical raceway. The 2 valves are on the same electrical separation group, but are redundant in their function of conserving water inventory in the RWST. Further investigation determined that the other electrical separation group has the same configuration. The licensee has implemented an hourly fire watch as a compensatory action. Engineering analyses are being conducted to determine if further modifications are necessary. Appropriate changes or compensations will be instituted into the corrective action system as identified."
The licensee informed the NRC Resident Inspection.
Related Event #38970 at Wolf Creek
General Information or Other
Event Number: 39046
Rep Org: MA RADIATION CONTROL PROGRAM
Licensee: PERKIT FOLDING BOX CORP
Region: 1
City: BOSTON State: MA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: KENATH TRAEDGE
HQ OPS Officer: JOHN MacKINNON
Licensee: PERKIT FOLDING BOX CORP
Region: 1
City: BOSTON State: MA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: KENATH TRAEDGE
HQ OPS Officer: JOHN MacKINNON
Notification Date: 07/08/2002
Notification Time: 15:27 [ET]
Event Date: 06/19/2002
Event Time: 12:00 [EDT]
Last Update Date: 07/08/2002
Notification Time: 15:27 [ET]
Event Date: 06/19/2002
Event Time: 12:00 [EDT]
Last Update Date: 07/08/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
BRIAN MCDERMOTT (R1)
JOHN HICKEY (NMSS)
BRIAN MCDERMOTT (R1)
JOHN HICKEY (NMSS)
MISSING THICKNESS MEASURING GAUGE
On 07/08/02 Mayo Construction company notified the Massachusetts Radiation Control Program that a 50 millicurie Sr-90 thickness paper measuring gauge has been missing since April/May of this year. It is believed that it was sent out as scrap metal to the Prolerized New England scrapyard which is located in Everett, MA. Mayo Construction company recently acquired Perkit Folding Box Corp, which had the general license for the missing gauge and they were unaware of the thickness measuring gauge. The gauge manufacturer is Fife\DMC\Radiometry of Gaithersburg, Md. The source was manufactured by Amersham. The source was installed in a C-ARM type gauge in 1991 by TechControl of Mountain City, Georgia. The gauge is contained in a black box measuring 4"x11"x11" and it is labeled on the outside as containing radioactive material. The serial number on the gauge is 2412BC. Radiation levels on the outside of the gauge with its shutter closed is 40 to 50 milliRad/hr. Prolerized New England scrapyard has been notified and the licensee is still searching for the missing gauge.
On 07/08/02 Mayo Construction company notified the Massachusetts Radiation Control Program that a 50 millicurie Sr-90 thickness paper measuring gauge has been missing since April/May of this year. It is believed that it was sent out as scrap metal to the Prolerized New England scrapyard which is located in Everett, MA. Mayo Construction company recently acquired Perkit Folding Box Corp, which had the general license for the missing gauge and they were unaware of the thickness measuring gauge. The gauge manufacturer is Fife\DMC\Radiometry of Gaithersburg, Md. The source was manufactured by Amersham. The source was installed in a C-ARM type gauge in 1991 by TechControl of Mountain City, Georgia. The gauge is contained in a black box measuring 4"x11"x11" and it is labeled on the outside as containing radioactive material. The serial number on the gauge is 2412BC. Radiation levels on the outside of the gauge with its shutter closed is 40 to 50 milliRad/hr. Prolerized New England scrapyard has been notified and the licensee is still searching for the missing gauge.