ENS 44368

v t e ENS Event
05:00 Aug 1, 2005
Title	Agreement State Report - Nuclear Gauge Malfunction
Event Description	This report was received from the state by facsimile. Exxon Mobil Chemical Company had an incident occur in August of 2005 and did not report the event. The event was discovered while an inspector was performing a reciprocity inspection on Ronan Engineering at Exxon on July 9, 2008. Ronan was contacted to package a nuclear gauge for transport and disposal. In August 2005, Exxon had a problem with a ThermoMeasure Tech 'SA-10' device that contained four 1000 mCi sources of Cs-137. The sources were QSA model CDC.93 with serial numbers 4421GN, 4424GN, 4425GN, and 4426GN in a rod configuration. In August 2005, the sources could not be returned to the shielded position to perform a shutter check. The facility returned the sources to the normal detent position for operation and continued to use the gauge. Ronan Engineering determined that the sources were encountering friction from the vessel source well. The vessel source well is part of the vessel and not part of the Ronan gauge. The gauge and sources were safely returned to the source holder, locked out, surveyed and leak tested on July 11, 2008. The gauge was shipped to ThermoMeasure Tech on July 11, 2008 for disposal. Event Report ID: LA0800015

ENS 44368 +/-
Where
Exxon Mobil Chemical Baton Rouge, Louisiana (NRC Region 4)
License number:	LA-2349-L01
Organization:	Louisiana Radiation Protection Div
Reporting

Agreement State
Time - Person (Reporting Time:+26213.77 h1,092.24 days <br />156.034 weeks <br />35.908 months <br />)
Opened:	Richard Penrod 10:46 Jul 28, 2008
NRC Officer:	John Knoke
Last Updated:	Jul 28, 2008
44368 - NRC Website
v • d • e

v t e Emergency Notification System
Exxon Mobil Chemical with Agreement State
WEEKMONTHYEAR2015-10-01T05:00:00 [Table view]
[ENS list for Exxon Mobil Chemical]

Navigation menu