ENS Event | |
|---|---|
12:30 Jun 4, 2015 | |
| Title | Stuck Gauge Shutter |
| Event Description | The following was received via email:
On June 4, 2015 at approximately 0830 [EDT], [the Radiation Safety Officer] was contacted by radiation trained employees at the licensee's Hot Rolling Facility. The employees indicated that the shutter on one of the slab detection radiation gauges would not close. The employee also indicated he noticed a shiny metallic material adjacent to the gauge housing on one side. As a result, they contacted the Radiation Safety Officer (RSO) and [he] proceeded to the site to investigate. [The RSO] informed them to barricade the area until [he] arrived. Upon arrival, [the RSO] conducted a survey of the area and compared the levels to prior surveys (including the installation survey). [The RSO] found no significant difference in radiation levels. [He] also performed a wipe test on the gauge and checked it with a survey meter and pancake probe, finding no detectable radiation. The melted metallic material appeared to possibly be lead from the device shielding. As a result, [he] believes some shielding may have overheated and blocked the shutter open. Because radiation levels were normal and the device was functioning normally, the device was left in its operating position on the furnace. This was the safest possible scenario until resources can be obtained to safely remove and store the device with the shutter open. The RSO will obtain a container that will house the device safely and will transport the device to a secure location in the plant (controlled by the RSO) until it can be retrieved and repaired by Ronan Engineering (manufacturer). The furnace will be in operation until the device is removed so there is no physical possibility of anyone being inside the furnace and being exposed. |
| Where | |
|---|---|
| Arcelormittal Burns Harbor Burns Harbor, Indiana (NRC Region 3) | |
| License number: | 13-32670-01 |
| Organization: | Arcelormittal Burns Harbor |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+2.7 h0.113 days <br />0.0161 weeks <br />0.0037 months <br />) | |
| Opened: | Chris Sarvanidis 15:12 Jun 4, 2015 |
| NRC Officer: | Dong Park |
| Last Updated: | Jun 4, 2015 |
| 51122 - NRC Website | |
Arcelormittal Burns Harbor with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 511222015-06-04T12:30:0004 June 2015 12:30:00
[Table view]10 CFR 30.50(b)(2) Stuck Gauge Shutter ENS 463412010-10-18T11:00:00018 October 2010 11:00:00 10 CFR 30.50(b)(2) Stuck Gauge Shutter ENS 462052010-08-24T14:15:00024 August 2010 14:15:00 10 CFR 30.50(b)(2) Level Detection Gauge Shutter Control Rod Disengaged ENS 461542010-07-22T06:30:00022 July 2010 06:30:00 10 CFR 30.50(b)(2) Nuclear Gauge Dislodged from Steel Caster and Later Retrieved 2015-06-04T12:30:00 | |