ENS Event | |
|---|---|
16:01 Apr 9, 2019 | |
| Title | Safety Equipment Failure - Shutter Potentially Stuck Open |
| Event Description | The licensee reported that there is a potential for a shutter to be stuck open on a bin level gauge. The licensee specifically noted that the shutter arm moves more freely than normal.
The following was received via e-mail: Indiana Harbor's [Radiation Safety Officer] RSO was notified of a problem with a gauge at the IH7 Blast Furnace operations at 1101 CDT on April 9, 2019. This issue has the potential to be a shutter failure. [Source details] Kay Ray model 7064P, serial number 8318, Cs-137, originally 5000 mCi (1978) estimated 2000 mCi remaining. There is no exposure potential. It is installed on the North Lockhopper at the # 7 blast furnace on elevation 13. Upon attempting to unlock the 'North Lockhopper empty' gauge, the shutter arm was moving freely. The position of the shutter is not know, however, the source beam is directed into the hopper if the shutter is open and there are no personnel that can access the beam while the furnace is in operation. The next opportunity to access the gauge will be during the next scheduled outage on June 4 or 5, 2019. |
| Where | |
|---|---|
| Arcelormittal East Chicago, Indiana (NRC Region 3) | |
| License number: | 13-32359-01 |
| Organization: | Arcelormittal |
| Reporting | |
| 10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure | |
| Time - Person (Reporting Time:+19.55 h0.815 days <br />0.116 weeks <br />0.0268 months <br />) | |
| Opened: | William Emery 11:34 Apr 10, 2019 |
| NRC Officer: | Jeffrey Whited |
| Last Updated: | Apr 10, 2019 |
| 53989 - NRC Website | |
Arcelormittal with 10 CFR 30.50(b)(2) | |
WEEKMONTHYEARENS 539892019-04-09T16:01:0009 April 2019 16:01:00
[Table view]10 CFR 30.50(b)(2) Safety Equipment Failure - Shutter Potentially Stuck Open ENS 485622012-12-05T17:00:0005 December 2012 17:00:00 10 CFR 30.50(b)(2) Fixed Gauge Shutter Failed to Close ENS 457432009-12-07T05:00:0007 December 2009 05:00:00 10 CFR 30.50(b)(2) Unable to Fully Close a Fixed Gauge Shutter 2019-04-09T16:01:00 | |