Event Notification Report for November 28, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
11/27/2008 - 11/28/2008
General Information or Other
Event Number: 44687
Rep Org: MARYLAND DEPT OF THE ENVIRONMENT
Licensee: ENGINEERING CONSTRUCTION SERVICES
Region: 1
City: HANOVER State: MD
County:
License #: 03-09201
Agreement: Y
Docket:
NRC Notified By: RAY MANLEY
HQ OPS Officer: BILL HUFFMAN
Licensee: ENGINEERING CONSTRUCTION SERVICES
Region: 1
City: HANOVER State: MD
County:
License #: 03-09201
Agreement: Y
Docket:
NRC Notified By: RAY MANLEY
HQ OPS Officer: BILL HUFFMAN
Notification Date: 11/28/2008
Notification Time: 14:56 [ET]
Event Date: 11/28/2008
Event Time: 10:15 [EST]
Last Update Date: 11/28/2008
Notification Time: 14:56 [ET]
Event Date: 11/28/2008
Event Time: 10:15 [EST]
Last Update Date: 11/28/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
LAWRENCE DOERFLEIN (R1)
LARRY CAMPER (FSME)
LAWRENCE DOERFLEIN (R1)
LARRY CAMPER (FSME)
AGREEMENT STATE - MARYLAND - DAMAGED TROXLER NUCLEAR DENSITY GAUGE
A representative for the state of Maryland Radiological Health Program reported that a Troxler nuclear density gauge was damaged when run over by construction equipment. The gauge, a Troxler 3430 (8 mCi Cs-137 and 40 mCi Am-241/Be; S/N 39041) was left unattended and was inadvertently run over by a large roller. The licensee secured the scene of the incident and contacted the state of Maryland. The state inspector found that the gauge had been extensively damaged with the source rod exposed. The state called in a Radiological Service Organization (RSO) contractor to assist in the source rod recovery. The source was successfully retrieved and placed into a shielded container and taken to the RSO's facility for ultimate disposal. There was no indication of breach of the sources or contamination as a result of this event. The state plans to follow-up with the licensee regarding failure to maintaining control over the Troxler while in use.
A representative for the state of Maryland Radiological Health Program reported that a Troxler nuclear density gauge was damaged when run over by construction equipment. The gauge, a Troxler 3430 (8 mCi Cs-137 and 40 mCi Am-241/Be; S/N 39041) was left unattended and was inadvertently run over by a large roller. The licensee secured the scene of the incident and contacted the state of Maryland. The state inspector found that the gauge had been extensively damaged with the source rod exposed. The state called in a Radiological Service Organization (RSO) contractor to assist in the source rod recovery. The source was successfully retrieved and placed into a shielded container and taken to the RSO's facility for ultimate disposal. There was no indication of breach of the sources or contamination as a result of this event. The state plans to follow-up with the licensee regarding failure to maintaining control over the Troxler while in use.
Power Reactor
Event Number: 44688
Facility: OYSTER CREEK
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: CARL SUCHTING
HQ OPS Officer: HOWIE CROUCH
Region: 1 State: NJ
Unit: [1] [] []
RX Type: [1] GE-2
NRC Notified By: CARL SUCHTING
HQ OPS Officer: HOWIE CROUCH
Notification Date: 11/28/2008
Notification Time: 23:04 [ET]
Event Date: 11/28/2008
Event Time: 21:01 [EST]
Last Update Date: 11/29/2008
Notification Time: 23:04 [ET]
Event Date: 11/28/2008
Event Time: 21:01 [EST]
Last Update Date: 11/29/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Person (Organization):
LAWRENCE DOERFLEIN (R1)
LAWRENCE DOERFLEIN (R1)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | A/R | Y | 98 | Power Operation | 0 | Hot Shutdown |
AUTOMATIC REACTOR SCRAM DUE TO MAIN TRANSFORMER FAULT
"At 98% power, a reactor scram occurred due to a Main Transformer fault. The plant is currently stable in the Hot Shutdown Mode. Isolation Condensers initiated as part of this event are currently in Standby Mode. This event is reportable in accordance with 10CFR50.72(b)(2) and (b)(3) and the Station Reportability Manual section SAF 1.6 and SAF 1.7."
The cause of the transformer fault is unknown and under investigation. There was no fire or explosion associated with the fault. All rods inserted during the scram. As a result of the transient, one electromatic relief valve lifted and subsequently reseated. There were no other isolations or safety equipment actuations during the transient.
The station electrical system is in its normal shutdown lineup with offsite power available. Decay heat is being removed via the turbine bypass valves to the main condenser. Pressure is currently at 700 psi with water level being maintained at 160" via the main feed system.
The licensee has notified the NRC Resident Inspector and will be notifying the State of New Jersey.
* * * * UPDATE FROM CARL SUCHTING TO JOHN KNOKE AT 0017 EDT ON 11/29/08 * * * *
" Notification performed to NJDEP of fish mortality following a reactor scram. As of this report, one dead bluefish spotted and three distressed bluefish spotted."
Licensee has notified the NRC Resident Inspector. Notified R1DO (Doerflein).
"At 98% power, a reactor scram occurred due to a Main Transformer fault. The plant is currently stable in the Hot Shutdown Mode. Isolation Condensers initiated as part of this event are currently in Standby Mode. This event is reportable in accordance with 10CFR50.72(b)(2) and (b)(3) and the Station Reportability Manual section SAF 1.6 and SAF 1.7."
The cause of the transformer fault is unknown and under investigation. There was no fire or explosion associated with the fault. All rods inserted during the scram. As a result of the transient, one electromatic relief valve lifted and subsequently reseated. There were no other isolations or safety equipment actuations during the transient.
The station electrical system is in its normal shutdown lineup with offsite power available. Decay heat is being removed via the turbine bypass valves to the main condenser. Pressure is currently at 700 psi with water level being maintained at 160" via the main feed system.
The licensee has notified the NRC Resident Inspector and will be notifying the State of New Jersey.
* * * * UPDATE FROM CARL SUCHTING TO JOHN KNOKE AT 0017 EDT ON 11/29/08 * * * *
" Notification performed to NJDEP of fish mortality following a reactor scram. As of this report, one dead bluefish spotted and three distressed bluefish spotted."
Licensee has notified the NRC Resident Inspector. Notified R1DO (Doerflein).