ENS 55065

v t e ENS Event
14:15 Jan 12, 2021
Title	NON-AGREEMENT State Report - Shutter Not Functioning Correctly
Event Description	The following is a summary of a call received from the licensee: During routine maintenance, an inspector from Radiometric Services and Instruments found that the shutter for an AMC-19 gauge, s/n: 998110B, with a 100 microCi AM-241 source, would close slowly. This was not as expected. The inspector noted that the pneumatic system was over pressurized. The gauge is located on the Continuous Galvanizing Line and the shutter is open during normal operations. The shutter can still be closed and a Geiger counter can be used to verify. There was no exposure to personnel. * * UPDATE ON 1/19/2021 AT 1731 EST FROM ROBIN BIRK TO JOANNA BRIDGE * * * The following is a summary of a call and e-mail received from the licensee: While testing the shutter today we were experiencing some continuing problems with the shutter mechanism at our Continuous Galvanizing Line. During maintenance, we discovered some error codes in the RSI software that indicated possible additional shutter problems. There was no potential for employee exposures. RSI will be back at the plant to address on 1/20/21. Notified R3DO (Peterson) and NMSS Events (e-mail).

ENS 55065 +/-
Where
Us Steel Great Lakes Works Ecorse, Michigan (NRC Region 3)
License number:	21-10459-01
Organization:	Us Steel Great Lakes Works
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+-0.77 h-0.0321 days <br />-0.00458 weeks <br />-0.00105 months <br />)
Opened:	Robin Birk 13:29 Jan 12, 2021
NRC Officer:	Ossy Font
Last Updated:	Jan 19, 2021
55065 - NRC Website
v • d • e

v t e Emergency Notification System
Us Steel Great Lakes Works with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2021-01-19T05:00:00 [Table view]
[ENS list for Us Steel Great Lakes Works]

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