ENS Event | |
|---|---|
04:00 Aug 2, 2011 | |
| Title | Agreement State Report - Shutter Mechanism Failure |
| Event Description | The following information was obtained from the Commonwealth of Pennsylvania via facsimile:
EVENT DESCRIPTION: Failure of the shutter mechanism on one of its generally licensed thickness gauges was identified immediately to operators through a computer based warning message and visually by a red status light adjacent to the gauge location. Adjustment of the air supply allowed the shutter to close but still not operate properly. Routine maintenance activities were not successful in allowing the shutter to return to operational status and Applied Health Physics were notified to provide radiological support. No radiation exposure to personnel ensued during this event. The device is identified as: Manufacturer (IRMS), Model (TG-2), Serial# (00M0397-I5), Isotope (Americium-241), Activity (3 Ci), Location (Cold Reduction Mill). CAUSE OF THE EVENT: A faulty actuator cylinder. ACTIONS: The shutter mechanism was replaced, tested, and confirmed as operating properly. The actuator cylinder will be placed on a preventive maintenance schedule following this event. PA Report No.: PA110022 |
| Where | |
|---|---|
| U.S. Steel West Mifflin, Pennsylvania (NRC Region 1) | |
| License number: | PA-G0309 |
| Organization: | Pa Bureau Of Radiation Protection |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+706.68 h29.445 days <br />4.206 weeks <br />0.968 months <br />) | |
| Opened: | Joseph Melnic 14:41 Aug 31, 2011 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Aug 31, 2011 |
| 47226 - NRC Website | |
U.S. Steel with Agreement State | |
WEEKMONTHYEARENS 473042011-09-28T13:30:00028 September 2011 13:30:00
[Table view]Agreement State Pennsylvania Agreement State Report - Industrial Gauge Shutter Failure ENS 472262011-08-02T04:00:0002 August 2011 04:00:00 Agreement State Agreement State Report - Shutter Mechanism Failure 2011-09-28T13:30:00 | |