| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
01/28/2011 - 01/31/2011 ** EVENT NUMBERS ** |
 | !!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!! | | Power Reactor | Event Number: 46509 | Facility: DIABLO CANYON
Region: 4 State: CA
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JAMES EWART
HQ OPS Officer: DONALD NORWOOD | Notification Date: 12/25/2010
Notification Time: 19:40 [ET]
Event Date: 12/25/2010
Event Time: 16:25 [PST]
Last Update Date: 01/28/2011 | Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
| Person (Organization):
GREG WERNER (R4DO)
ELMO COLLINS (R4)
ART HOWELL (R4)
WILLIAM GOTT (IRD)
LINDA HOWELL (R4)
ERIC LEEDS (NRR)
ALLEN HOWE (NRR)
MICHAEL PECK (R4)
JOHN KNOX (DHS)
DWIGHT FULLER (FEMA)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 100 | Power Operation | 100 | Power Operation | | 2 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text NOTIFICATION OF UNUSUAL EVENT DECLARED DUE TO HIGH WINDS
Notification of Unusual Event declared due to high winds. EAL HU 1.2 condition of peak wind in excess of 80 miles per hour have been met. Sustained winds at the present time are 53.5 miles per hour. Wind direction (from) 38.8 degrees. There has been no damage on-site. There are no plans to reduce reactor power on either unit at the present time. The Emergency Operations Center has not been activated. The storm front causing the high winds is expected to exit the area within the next three to four hours.
The licensee notified the NRC Resident Inspector. The licensee notified the San Luis Obispo Sheriff and the State of California Office of Emergency Services.
* * * UPDATE FROM JAMES EWART TO DONALD NORWOOD AT 2018 EST ON 12/25/2010 * * *
Current wind speed is 3.7 miles per hour. Wind direction (from) 134.7 degrees. There has been no damage on-site. The access roads to the site are open and passable.
* * * UPDATE FROM JAMES EWART TO DONALD NORWOOD AT 2057 EST ON 12/25/2010 * * *
Current wind speed 9.2 miles per hour. Wind direction (from) 101.6 degrees. The NRC Senior Resident Inspector is on-site.
* * * UPDATE AT 2333 EST ON 12/25/2010 FROM JEFF PORTNEY TO MARK ABRAMOVITZ * * *
The licensee terminated the NOUE at 2021 PST. Winds are less than 2 mph gusting to 2.8 mph from 63.9 degrees. The storm has passed and no damage has been detected. The NRC Resident Inspector will be notified.
Notified the R4DO (Werner), IRD (Gott), NRR EO (Howe), DHS (Knox), and FEMA (Fuller).
* * * RETRACTION ON 12/28/2011 AT 1159 FROM ROB KLEIN TO DONG PARK * * *
"During a rain storm on December 25, 2010, PG&E declared an Unusual Event at the Diablo Canyon Power Plant due to indicated peak wind speed of 42.6 meters per second (m/s), (95.3 miles per hour (mph)), at the 10m elevation on the Primary Meteorological Tower, in excess of 80 mph indicated. After analyzing other wind speed instrumentation from the same time period, PG&E concluded that this reading did not accurately reflect meteorological conditions at that time. The next highest reading was taken at the 76m elevation on the Primary Meteorological Tower and indicated peak wind speeds of 23.7 m/s (53.0 mph). The Backup Meteorological Tower mechanical anemometers indicated a wind speed of 16.1 m/s (36.0 mph) for the 10m elevation, and 18.2 m/s (40.7 mph) for the 60m elevation. The Primary Meteorological Tower sonic sensors read both wind speed and wind direction with a single sensor. Concurrent with the Primary Meteorological Tower 10m wind speed spike, the 10m Primary Meteorological Tower wind-direction made a step-change from 153 degrees to 39 degrees. This step change indicated a value approximately 180 degrees opposite all other wind direction instrumentation indications.
"PG&E made the initial reporting of this event assuming the wind speed indicator at the 10m elevation on the Primary Meteorological Tower was functioning correctly. Analysis determined that this instrument was not functioning correctly. PG&E troubleshooting found the sonic wind speed and direction sensors are vulnerable to moisture intrusion. Moisture was found in the body of a wind speed and direction sensor after it had spiked in the rain. The vendor confirmed that moisture on the circuit board could cause an interruption of measurement, which would cause the sensor outputs to read high. PG&E identified moisture intrusion as the presumptive cause of the wind speed spiking . PG&E has sealed all sensors to eliminate the vulnerability. Given the above, PG&E retracts this event report."
Notified the R4DO (Miller). |
| Agreement State | Event Number: 46567 | Rep Org: PA BUREAU OF RADIATION PROTECTION
Licensee: EASTERN REGIONAL MEDICAL CENTER
Region: 1
City: PHILADELPHIA State: PA
County:
License #: PA-0980
Agreement: Y
Docket:
NRC Notified By: DAVID J. ALLARD
HQ OPS Officer: VINCE KLCO | Notification Date: 01/24/2011
Notification Time: 17:03 [ET]
Event Date: 01/19/2011
Event Time: [EST]
Last Update Date: 01/24/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
CHRISTOPHER NEWPORT (R1DO)
BILL VON TILL (FSME)
| Event Text AGREEMENT STATE REPORT - POTENTIAL DOSAGE DIFFERENT THAN INTENDED DOSE
The following information was received from the state by facsimile:
"The licensee called the PaDEP [Pennsylvania Department Bureau of Radiation Protection] South East Region at 1600 [EST] on January 20, 2011 to provide a 24-hour verbal notice of a medical event involving a dosage that differs from the intended dose by greater than 20%, consequently requiring a 24-hour report per 10 CFR 35.3045(a)(1)(i). PaDEP Central Office was notified on 1/21/2011.
"During a formal review immediately following a second Yttrium-90 (Y90) TheraSphere radiation treatment on January 19, 2011, CTCA [Cancer Treatment Centers of America] noticed that the activity of microspheres delivered was different than the activity that was prescribed by the doctor. The patient was first treated with 10 GBq (about 0.27 Ci) of TheraSphere Y-90 beads for the right lobe of the liver. A second treatment of 3 GBq (about 0.081 Ci) was prescribed for the left lobe, however the activity ordered remained unchanged on the second order form, resulting in 10 GBq (about 0.27 Ci) being delivered to the patient.
"Cause of the Event: Human Error.
"The Department [Pennsylvania Department Bureau of Radiation Protection] has a call into the Radiation Safety Officer regarding the estimated organ dose to the liver, and will be obtaining more event details. At this time DEP plans to send regional staff to conduct a reactive inspection on 1/25/2011. Final event details will be communicated in a NMED and any other required report."
Pennsylvania Event Report: PA110001
A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient. |
| Power Reactor | Event Number: 46575 | Facility: WOLF CREEK
Region: 4 State: KS
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: BILL STUCKER
HQ OPS Officer: DONG HWA PARK | Notification Date: 01/28/2011
Notification Time: 11:07 [ET]
Event Date: 01/28/2011
Event Time: 10:09 [CST]
Last Update Date: 01/28/2011 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
GEOFFREY MILLER (R4DO)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 1 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text PLANNED PRIMARY COMMUNICATIONS MAINTENANCE
"On Friday, Jan. 28, 2011, the local phone company will upgrade communications lines on the plant site. Telephone (calls coming in and going outside of the plant site) and internet will be out of service from approximately 1 to 3 p.m. (HPN, ERDS, and SPDS will be out of service during this time).
"There will be four phone lines that remain operational during the upgrade:
"[1.] Emergency notification/verification line in the Control Room, Technical Support Center and Emergency Operation Facility;
"[2.] Control Room;
"[3.] Main Security; and
"[4.] Cell Phone in the Control Room.
"Alternate means are available to notify the State of Kansas and the County. Also, alternate means are available to notify the emergency plan organization.
"This work is anticipated to last no longer than two hours. If there are problems, the phone company will revert to the original configuration at the end of that time period.
"The NRC Resident Inspector has been notified."
* * * UPDATE AT 1719 EST ON 1/28/2011 FROM BILL STUCKER TO MARK ABRAMOVITZ * * *
Maintenance was completed and tested by 1348 CST. The licensee notified the NRC Resident Inspector.
Notified the R4DO (Miller). | |