| U.S. Nuclear Regulatory Commission
Operations Center Event Reports For
10/02/2007 - 10/03/2007 ** EVENT NUMBERS ** |
 | General Information or Other | Event Number: 43669 | Rep Org: TEXAS DEPARTMENT OF HEALTH
Licensee: MATRIX METALS LLC
Region: 4
City: RICHMOND State: TX
County:
License #: L00312
Agreement: Y
Docket:
NRC Notified By: RAY JISHA
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 09/27/2007
Notification Time: 15:15 [ET]
Event Date: 09/27/2007
Event Time: 10:30 [CDT]
Last Update Date: 09/28/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
CLAUDE JOHNSON (R4)
ROBERT PIERSON (FSME)
| Event Text AGREEMENT STATE REPORT - RADIOGRAPHY SOURCE WILL NOT RETRACT INTO CAMERA
"At 1030 hours the licensee reported that a Sentinel model 676AE (S/N AE1017) radiography camera with a 69 Ci Co-60 source (Make 424-13; S/N 2612) failed to retract to the safe position. After several attempts to retract the source and after a close inspection of the crank device, the Agency was notified and advice sought for authorized personnel who could safely retrieve the source. At 1400 hrs., the RSO had made arrangements with the manufacturer to provide a team equipped to deal with the emergency. The licensee is authorized for fixed site radiography for the facility that he owns. Due to Increased controls, surveillance will be maintained by additional security personnel until the retrieval team is on-site, either late tonight or early tomorrow, Friday 09/28/07."
Texas event report: I-8445
* * * UPDATE RECEIVED VIA E-MAIL FROM RAY JISHA TO MARK ABRAMOVITZ AT 1139 ON 9/28/07 * * *
"Update, @ 0800hrs., Friday, September 28, 2007. The RSO for Matrix Metals called to report that the manufacturer's specialist arrived on the scene at ~2230hrs last night, Thursday, September 28, 2007 and the source was retracted to the save position within 20 minutes. As the source was in a shooting bay at this fabrication facility, no significant public or personnel exposures occurred. The RSO for the licensee and another authorized user remained at the facility to ensure constant surveillance as per IC requirements. Upon a more thorough inspection of the camera by the manufacturer's representative, a few mechanical issues were determined to be in need of further investigation so the device and source are being over packed today and returned to the manufacturer. A full report from the licensee will be filed" [with the state of Texas].
Notified the R4DO (Johnson) and FSME (Wastler). |
| General Information or Other | Event Number: 43674 | Rep Org: ARKANSAS DEPARTMENT OF HEALTH
Licensee: APAC ARKANSAS INC
Region: 4
City: SPRINGDALE State: AR
County:
License #: ARK-0686-0312
Agreement: Y
Docket:
NRC Notified By: JARED THOMPSON
HQ OPS Officer: MARK ABRAMOVITZ | Notification Date: 09/28/2007
Notification Time: 14:17 [ET]
Event Date: 09/27/2007
Event Time: 23:00 [CDT]
Last Update Date: 09/28/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
| Person (Organization):
CLAUDE JOHNSON (R4)
ROBERT PIERSON (FSME)
| Event Text AGREEMENT STATE REPORT - TROXLER GAUGE DAMAGED IN HIGHWAY ACCIDENT
The State provided the following information via email:
"The Arkansas Department of Health received notification on September 27, 2007 at 11:00 p.m. a Troxler 4640B, Serial Number 1574 portable gauge was struck and damaged by a pick up truck. The gauge contains a 9 mCi, Cesium-137 source, Serial number 75-6810.
"The incident occurred on Highway 412 near Springdale, Arkansas. The gauge was being used during highway construction. The authorized user was struck and killed during this incident.
"The Radiation Safety Officer (RSO) was contacted and arrived at approximately 12:00 a.m. to assess the scene. The source rod along with part of the shielding was separated from the main part of the gauge. A wipe test was taken and the field survey of the wipe indicated that the source had not been ruptured. The RSO partially shielded the source by returning it to the base plate and placed the source rod back with the gauge in the transport case. The gauge was then transported to the licensee's permanent storage area.
"Arkansas Department of Health personnel arrived at the licensee's facility at 9:00 a.m. on Friday, September 28, 2007. Department personnel gathered information about the incident and then conducted surveys of the gauge. It appears that the gauge shielding had been cracked and possibly compromised. The highest radiation reading was 35 mR/hour on contact of the left end side of the gauge.
"The licensee has been in contact with the manufacturer for possible disposal options." |
| Power Reactor | Event Number: 43677 | Facility: DIABLO CANYON
Region: 4 State: CA
Unit: [ ] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: JAN NIMICK
HQ OPS Officer: JOHN MacKINNON | Notification Date: 10/01/2007
Notification Time: 00:57 [ET]
Event Date: 09/30/2007
Event Time: 19:58 [PDT]
Last Update Date: 10/02/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
| Person (Organization):
CLAUDE JOHNSON (R4)
|
| Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode | | 2 | N | Y | 100 | Power Operation | 100 | Power Operation | Event Text UNEXPECTED AUTOMATIC START OF THE 2-1 EMERGENCY DIESEL GENERATOR (EDG)
"A problem with voltage sensing circuit for 4 KV Bus G Startup power supply caused Diesel Generator 2-1 to automatically start. Loss of Startup voltage to a vital bus is an automatic start signal for the associated diesel generator. Startup power has been declared inoperable to 4 KV Bus G. All indications for Startup power to the other 2 vital busses remain normal. All systems functioned correctly in response to the sensed undervoltage condition. Unit 2 is in a 72 hour shutdown action statement per T. S. 3.8.1. An automatic start of a Diesel Generator is reportable per 10CFR50.72(B)(1)(iv)(A). The Diesel Generator has been shutdown per the annunciator response procedure and remains operable."
One of the four undervoltage relay starting power fuses for EDG 2-1 was found blown.
The NRC Resident Inspector was notified of this event by the licensee.
* * * UPDATE ON 10/2/07 AT 1947 FROM KEN JOHNSTON TO MARK ABRAMOVITZ * * *
This update is changing the reporting criteria from a valid system actuation 8-hour report to a invalid specified system actuation 60-day report.
"This 60-day notification is being made in accordance with 10 CFR 50.73(a)(i), which states that in case of an invalid actuation reported under 10 CFR 50.73(a)(2)(iv)(A), other than the actuation of the Reactor Protection System when the reactor is critical, the licensee may provide a telephone notification to the NRC within 60 days after discovery of the event instead of submitting a written Licensee Event Report.
"On September 30, 2007, at 19:58 PDT, EDG 2-1 automatically started, but did not load, due to a failed power supply fuse to an undervoltage sensing relay. EDG 2-1 was shutdown and placed in standby with the undervoltage sensing relay isolated from service. No actual undervoltage condition existed. EDG 2-2 and 2-3 were unaffected by this event. The affected sensing relay circuit was successfully completed. On October 1, 2007, at 18:09 PDT, TS 3.8.1 was exited.
"The consequences of this event are limited to the unplanned start of EDG 2-1. The EDG started and functioned in accordance with its design. Since no actual vital bus undervoltage condition existed which required the EDG to start, and since the start occurred inadvertently as a result a single component failure, this event has been classified as an invalid actuation. The original 8-hour notification made under 50.72(b)(3)(iv)(A) is therefore retracted and replaced by this 60-day telephone notification."
The licensee notified the NRC Resident Inspector. Notified the R4DO (Nease). |
| Power Reactor | Event Number: 43680 | Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: HARDY FARRIS
HQ OPS Officer: JEFF ROTTON | Notification Date: 10/02/2007
Notification Time: 04:28 [ET]
Event Date: 10/01/2007
Event Time: 22:20 [CDT]
Last Update Date: 10/03/2007 | Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
| Person (Organization):
REBECCA NEASE (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 | Event Text LOSS OF EXHAUST VENTILATION STACK FLOW AND ACCIDENT RADIATION MONITORS DUE TO PLANT DATA MULTIPLEXER FAILURE
"On 10/01/2007 the failure of a plant data multiplexer (MUX) resulted in the loss of Control Room indication of all plant building exhaust ventilation stack flows and accident radiation monitors. The stack flows and accident radiation monitors are normally accessed by the plants Emergency Response Organization offsite dose calculation application but cannot be accessed at this time. Alternate means of offsite dose projections are available. The duration of the plant data MUX outage is currently unknown. Follow-up notification will be made after restoration of the plant data MUX."
The cause of the failure is being investigated.
The licensee notified the NRC Resident Inspector.
* * * UPDATE PROVIDED BY HARDY FERRIS TO JASON KOZAL ON10/03/07 AT 0214 EDT * * *
The licensee reports that the plant data multiplexer (MUX) has been returned to service. A faulty off-gas building channel (Offgas / Radwaste Building AXM/SPING/FMIS) was the cause of the MUX failure. The off-gas channel remains out of service.
The licensee notified the NRC Resident Inspector. R4DO (Nease) notified. | |