Event Notification Report for November 02, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/01/2001 - 11/02/2001
General Information or Other
Event Number: 38464
Rep Org: MARYLAND DEPT OF THE ENVIRONMENT
Licensee: ENGINEERING CONSULTANTS, INC.
Region: 1
City: State: MD
County: HARTFORD
License #: MD25-041-01
Agreement: Y
Docket:
NRC Notified By: CARL TRUMP
HQ OPS Officer: FANGIE JONES
Licensee: ENGINEERING CONSULTANTS, INC.
Region: 1
City: State: MD
County: HARTFORD
License #: MD25-041-01
Agreement: Y
Docket:
NRC Notified By: CARL TRUMP
HQ OPS Officer: FANGIE JONES
Notification Date: 11/05/2001
Notification Time: 08:49 [ET]
Event Date: 11/02/2001
Event Time: 14:00 [EST]
Last Update Date: 11/05/2001
Notification Time: 08:49 [ET]
Event Date: 11/02/2001
Event Time: 14:00 [EST]
Last Update Date: 11/05/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
JAMES LINVILLE (R1)
FREDERICK BROWN (NMSS)
JAMES LINVILLE (R1)
FREDERICK BROWN (NMSS)
AGREEMENT STATE REPORT - DAMAGED TROXLER GAUGE
A Troxler moisture density gauge, model 3440 with 8 mCi Cs-137 and 40 mCi Am-241:Be, was damage when a roller backed over it. This took place in the Blair, MD area at a new housing development area. The gauge was severely damaged, however the sources appear to be intact. The gauge will be sent to Troxler for further examination.
A Troxler moisture density gauge, model 3440 with 8 mCi Cs-137 and 40 mCi Am-241:Be, was damage when a roller backed over it. This took place in the Blair, MD area at a new housing development area. The gauge was severely damaged, however the sources appear to be intact. The gauge will be sent to Troxler for further examination.
Power Reactor
Event Number: 38458
Facility: COOPER
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: WHEELER
HQ OPS Officer: CHAUNCEY GOULD
Region: 4 State: NE
Unit: [1] [] []
RX Type: [1] GE-4
NRC Notified By: WHEELER
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 11/02/2001
Notification Time: 09:54 [ET]
Event Date: 11/02/2001
Event Time: 03:25 [CST]
Last Update Date: 11/02/2001
Notification Time: 09:54 [ET]
Event Date: 11/02/2001
Event Time: 03:25 [CST]
Last Update Date: 11/02/2001
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):
BLAIR SPITZBERG (R4)
BLAIR SPITZBERG (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 94 | Power Operation | 94 | Power Operation |
BOTH REACTOR BUILDING TO TORUS VACUUM BREAKERS WERE PREVENTED FROM RESPONDING TO A REACTOR BUILDING TO TORUS DIFFERENTIAL PRESSURE
At 0325 CST, it was identified that the switches for TORUS VACUUM RELIEF valves PC-AOV-243AV and PC-AOV-244AV were in the closed position. With the switches in the closed position, the valves would not respond to a differential pressure between the Reactor Building and Torus as required by SR 3.6.1.7.3. The switches had been placed in the closed position for performance of LLRT on penetration X-205. The valves were declared inoperable and LCO 3.6.1.7 Condition D was entered. The required action for this condition is to restore all vacuum breakers in one line to operable status within 1 hour. If the valves are not restored to operable, Action E is entered, which requires the plant to be in Mode 3 in 12 hours and Mode 4 in 36 hours. The valve switches had been placed in this position as part of a clearance order issued at 2357.
At 0342 CST, the switches for the Torus Vacuum Relief valves were returned to the Auto position, and the valves were declared operable as vacuum breakers. The LCO 3.6.1.7 Condition D was exited.
The function of the Reactor building to Torus vacuum breakers is to relieve vacuum when primary containment depressurizes below Reactor Building pressure. With the switches in the closed position, the valves would not respond to a situation where a significant negative pressure existed between the Reactor Building and Torus. A negative differential pressure is caused by rapid depressurization of the drywell. Events that cause this rapid depressurization are cooling cycles, primary containment spray actuation, and steam condensation in the event of a primary system rupture. The Reactor building to Torus vacuum breakers prevent an excessive negative differential pressure across the primary containment boundary.
This event was determined to be reportable on 11-2-01 at 0430 CST after review of NUREG 1022 and design basis information.
The NRC Resident Inspector was notified.
At 0325 CST, it was identified that the switches for TORUS VACUUM RELIEF valves PC-AOV-243AV and PC-AOV-244AV were in the closed position. With the switches in the closed position, the valves would not respond to a differential pressure between the Reactor Building and Torus as required by SR 3.6.1.7.3. The switches had been placed in the closed position for performance of LLRT on penetration X-205. The valves were declared inoperable and LCO 3.6.1.7 Condition D was entered. The required action for this condition is to restore all vacuum breakers in one line to operable status within 1 hour. If the valves are not restored to operable, Action E is entered, which requires the plant to be in Mode 3 in 12 hours and Mode 4 in 36 hours. The valve switches had been placed in this position as part of a clearance order issued at 2357.
At 0342 CST, the switches for the Torus Vacuum Relief valves were returned to the Auto position, and the valves were declared operable as vacuum breakers. The LCO 3.6.1.7 Condition D was exited.
The function of the Reactor building to Torus vacuum breakers is to relieve vacuum when primary containment depressurizes below Reactor Building pressure. With the switches in the closed position, the valves would not respond to a situation where a significant negative pressure existed between the Reactor Building and Torus. A negative differential pressure is caused by rapid depressurization of the drywell. Events that cause this rapid depressurization are cooling cycles, primary containment spray actuation, and steam condensation in the event of a primary system rupture. The Reactor building to Torus vacuum breakers prevent an excessive negative differential pressure across the primary containment boundary.
This event was determined to be reportable on 11-2-01 at 0430 CST after review of NUREG 1022 and design basis information.
The NRC Resident Inspector was notified.
Other Nuclear Material
Event Number: 38459
Rep Org: NTH CONSULTANTS
Licensee: NTH CONSULTANTS
Region: 3
City: FARMINGTON HILLS State: MI
County:
License #: 21-14894-01
Agreement: N
Docket:
NRC Notified By: JIM PARSONS
HQ OPS Officer: STEVE SANDIN
Licensee: NTH CONSULTANTS
Region: 3
City: FARMINGTON HILLS State: MI
County:
License #: 21-14894-01
Agreement: N
Docket:
NRC Notified By: JIM PARSONS
HQ OPS Officer: STEVE SANDIN
Notification Date: 11/02/2001
Notification Time: 15:07 [ET]
Event Date: 11/02/2001
Event Time: 00:00 [EST]
Last Update Date: 11/13/2001
Notification Time: 15:07 [ET]
Event Date: 11/02/2001
Event Time: 00:00 [EST]
Last Update Date: 11/13/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
10 CFR Section:
20.2201(a)(1)(i) - LOST/STOLEN LNM>1000X
Person (Organization):
MICHAEL JORDAN (R3)
BRIAN SMITH (NMSS)
MICHAEL JORDAN (R3)
BRIAN SMITH (NMSS)
TROXLER GAUGE DISCOVERED MISSING DURING ROUTINE INVENTORY
During a routine physical inventory, a Troxler Model 3411B (upgraded 3401B), S/N 16990, was discovered missing from the Farmington Hills, MI, main office. The gauge which contains 8 millicuries Cs-137 and 40 millicuries Americium-241/Be, was logged out from the Grand Rapids office on 8/31/01 as a return to the main office for repairs. The main office has no record of the shipment. The local police department in Grand Rapids has been informed of the missing gauge. The licensee is continuing their investigation.
* * * UPDATE ON 11/13/01 @ 1240 BY PARSONS TO GOULD * * *
The device was found at the house of a former employee on 11/3/01.
Notified John Hickey and Anita Turner
During a routine physical inventory, a Troxler Model 3411B (upgraded 3401B), S/N 16990, was discovered missing from the Farmington Hills, MI, main office. The gauge which contains 8 millicuries Cs-137 and 40 millicuries Americium-241/Be, was logged out from the Grand Rapids office on 8/31/01 as a return to the main office for repairs. The main office has no record of the shipment. The local police department in Grand Rapids has been informed of the missing gauge. The licensee is continuing their investigation.
* * * UPDATE ON 11/13/01 @ 1240 BY PARSONS TO GOULD * * *
The device was found at the house of a former employee on 11/3/01.
Notified John Hickey and Anita Turner