Event Notification Report for March 31, 2026
subscribe to page updates
Event Text
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/30/2026 - 03/31/2026
EVENT NUMBERS
58214
58214
Agreement State
Event Number: 58214
Rep Org: Illinois Emergency Mgmt. Agency
Licensee: Equistar Chemicals
Region: 3
City: Morris State: IL
County:
License #: IL-01737-01
Agreement: Y
Docket:
NRC Notified By: Kim Stice
HQ OPS Officer: Adam Koziol
Licensee: Equistar Chemicals
Region: 3
City: Morris State: IL
County:
License #: IL-01737-01
Agreement: Y
Docket:
NRC Notified By: Kim Stice
HQ OPS Officer: Adam Koziol
Notification Date: 03/23/2026
Notification Time: 13:26 [ET]
Event Date: 03/20/2026
Event Time: 00:00 [CDT]
Last Update Date: 03/23/2026
Notification Time: 13:26 [ET]
Event Date: 03/20/2026
Event Time: 00:00 [CDT]
Last Update Date: 03/23/2026
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Stoedter, Karla (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Stoedter, Karla (R3DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - STUCK SHUTTER
The following is a summary of information provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
On March 20, 2026, the Agency was notified after hours via email regarding a stuck shutter on a Vega model SH-F2 (serial number 2767CO) containing 300 mCi of Cs-137. The normally open, vessel mounted gauge was found stuck open during routine maintenance. No vessel entry or potential elevated exposures are expected.
On March 21, 2026, maintenance personnel lubricated the shutter and were able to successfully close the shutter. The shutter will be left in the closed position and locked out pending replacement. This matter is considered closed.
IL Event Number: IL260009
The following is a summary of information provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
On March 20, 2026, the Agency was notified after hours via email regarding a stuck shutter on a Vega model SH-F2 (serial number 2767CO) containing 300 mCi of Cs-137. The normally open, vessel mounted gauge was found stuck open during routine maintenance. No vessel entry or potential elevated exposures are expected.
On March 21, 2026, maintenance personnel lubricated the shutter and were able to successfully close the shutter. The shutter will be left in the closed position and locked out pending replacement. This matter is considered closed.
IL Event Number: IL260009
Page Last Reviewed/Updated March 31, 2026, 05:03 am EDT