ENS 58167

v t e ENS Event
06:00 Feb 17, 2026
Title	Stuck Shutter
Event Description	The following information was provided by the Texas Department of State Health (Department) Services via phone and email: On February 17, 2026, the licensee notified the Department that the shutter on a Vega SH-F2 gauge, which contains a 500-millicurie (original activity) cesium-137 source, failed to close during testing. The licensee reported that a contractor will be contacted to repair the gauge shutter. The licensee also stated that there is no risk of additional radiation exposure to members of the general public or radiation workers due to this on/off mechanism failure. Additional information will be provided as it is received, in accordance with SA-300. Texas incident number: 10263 Texas NMED: TX260003 * * UPDATE ON FEBRUARY 23, 2026 AT 1125 EST FROM AUTHUR TUCKER TO BILL NYTKO * * * The following is a summary of information provided by the Department via email: The license number provided for this [incident] by the licensee was incorrect. The correct license number is L03119. Notified R4DO (Agrawal), NMSS Events Notification (email)

ENS 58167 +/-
Where
Exxon Mobil Corporation Mont Belvieu, Texas (NRC Region 4)
License number:	L03119
Organization:	Texas Dept Of State Health Services
Reporting

Agreement State
Time - Person (Reporting Time:+15.12 h0.63 days <br />0.09 weeks <br />0.0207 months <br />)
Opened:	Arthur L Tucker 21:07 Feb 17, 2026
NRC Officer:	Jordan Wingate
Last Updated:	Feb 23, 2026
58167 - NRC Website
v • d • e

v t e Emergency Notification System
Exxon Mobil Corporation with Agreement State
WEEKMONTHYEAR2026-02-17T06:00:00 [Table view]
[ENS list for Exxon Mobil Corporation]

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