ENS 52318

v t e ENS Event
11:00 Oct 25, 2016
Title	Source Holder Stuck Shutter
Event Description	At approximately 0700 EDT, October 25, 2016, the RSO [Radiation Safety Officer] and Assistant RSO attempted to open the shutter on source holder 10071961 (Hemlock identifier), while preforming routine maintenance. The shutter operation failed, the shutter is stuck in the closed position. There were no exposures as a result of the failed shutter operation. Operating the shutter was part of a routine preventative maintenance plan. The process is currently shut down, therefore this incident caused no loss of production. The source holder is located on site. Hemlock Semiconductor Operations is in contact with Vega Americas, the manufacturer. Vega America Source Holder Model SHF 2-B Radionuclide: Cesium 137 - 800mCi Source holder serial number: 13544057

ENS 52318 +/-
Where
Hemlock Semiconductor Corporation Hemlock, Michigan (NRC Region 3)
License number:	21-32682-01
Organization:	Hemlock Semiconductor Corporation
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+5 h0.208 days <br />0.0298 weeks <br />0.00685 months <br />)
Opened:	Kelly Deering 16:00 Oct 25, 2016
NRC Officer:	Steven Vitto
Last Updated:	Oct 25, 2016
52318 - NRC Website
v • d • e

v t e Emergency Notification System
Hemlock Semiconductor Corporation with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2016-10-25T11:00:00 [Table view]
[ENS list for Hemlock Semiconductor Corporation]

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