ENS 45897

v t e ENS Event
20:55 May 3, 2010
Title	Agreement State Report - Stuck Shutter
Event Description	The State of Texas provided this information via email: On May 3, 2010, the licensee discovered that the shutter of a nuclear gauge mounted on the Ryton Quench Salt Solution Tank was stuck in the 'Open' position. The gauge is an Ohmart-Vega Model SH-F1 serial #6966CN, with a 20 mCi Cesium (Cs)-137 source. Initial efforts were made to free the shutter mechanism with penetrating oil and hand pressure, with no results. The shutter mechanism has been tagged out and the manufacturer has been contacted. The gauge is stuck in the open position which is its normal operating position. The source does not present an increased exposure risk to personnel as there are no identified needs for entry/opening of the vessel which would require lockout of the gauge. The licensee is working with the manufacturer to arrange for a field service engineer to evaluate/repair/replace the stuck shutter. This shutter had previously failed in October 2009 (EN45399, I-8675.) Repairs had been made and a protective cover for the gauge was installed at that time. Texas Incident Report # I-8737

ENS 45897 +/-
Where
Chevron Phillips Chemical Company Lp Borger, Texas (NRC Region 4)
License number:	05181
Organization:	Texas Department Of Health
Reporting

Agreement State
Time - Person (Reporting Time:+12.8 h0.533 days <br />0.0762 weeks <br />0.0175 months <br />)
Opened:	Art Tucker 09:43 May 4, 2010
NRC Officer:	Dong Park
Last Updated:	May 4, 2010
45897 - NRC Website
v • d • e

v t e Emergency Notification System
Chevron Phillips Chemical Company Lp with Agreement State
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