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Event Notification Report for April 13, 2021

U.S. Nuclear Regulatory Commission
Operations Center

EVENT REPORTS FOR
04/12/2021 - 04/13/2021

EVENT NUMBERS
55190
Non-Agreement State
Event Number: 55190
Rep Org: United States Steel
Licensee: United States Steel
Region: 3
City: Gary   State: IN
County:
License #: 13-26104-03
Agreement: N
Docket:
NRC Notified By: ShaKeia Reese
HQ OPS Officer: Brian Lin
Notification Date: 04/13/2021
Notification Time: 16:02 [ET]
Event Date: 04/13/2021
Event Time: 07:45 [EDT]
Last Update Date: 04/13/2021
Emergency Class: Non Emergency
10 CFR Section:
30.50(b)(2) - Safety Equipment Failure
Person (Organization):
NMSS_EVENTS_NOTIFICATION (EMAIL)
STOEDTER, KARLA (R3DO)
Event Text
EN Revision Imported Date: 5/13/2021

EN Revision Text: STUCK SHUTTER

The following information was received from the licensee via email:

"At 0745 CDT, a Systems employee was in #14BF stock house performing lockout tagout procedures in preparation for an outage. As the employee was attempting to close the shutter on the north Berthold gauge, the handle broke leaving the shutter stuck in the open position. No personnel were exposed to the source. Under normal operating conditions the shutter remains open and doesn't pose an immediate hazard while following established procedures.

"Initial Corrective Actions:
- Performed a survey in the work area. No readings above background.
- Posted signage indicating that the shutter is inoperable, stuck in the open position, and informing employees not to enter.
- Contact manufacturer representative (Radiametrics) to schedule assessment and repairs."

The Berthold gauge contas a 300 milliCurie Am-241/Be source.