ENS 45891

v t e ENS Event
06:00 Apr 26, 2010
Title	Gauge Shutters Stuck Open
Event Description	On April 26, 2010, while the licensee, Particle Drilling Technologies out of Houston, Texas was performing a scheduled shutter operation check, the shutter on a Ronan Model SA1 nuclear gauge failed to close. They were at a remote drilling site in the Pinedale, Wyoming when this occurred and was using the gauge as generally licensed material under its Texas license. The gauge contains 20 millicuries of Cesium (Cs) 137 (S/N #6198CN). The gauge is in its normal operating position and a radiation survey conducted by the licensee indicated that radiation levels are normal. The gauge was leak tested and the test sent for analysis. The licensee stated that there is no risk of additional exposure to their workers. The licensee is working with the manufacturer to schedule the repair of the gauge on May 18, 2010. The licensee reported this incident to the NRC Operations Center on April 27, 2010, and it was logged until it could be determined whether this incident should be reported to the State of Texas or the NRC. It was determined that since the event occurred in Wyoming, it is an NRC report. On May 1, 2010, the licensee was performing shutter checks when they discovered two more shutters were stuck in the open position. These are also Ronan Model SA1 gauges that contain 20 mCi Cs-137 sources. Their serial numbers are 6115CN and 5808CN. The vendor is still scheduled for onsite repairs on May 18.

ENS 45891 +/-
Where
Particle Drilling Technologies Pinedale, Wyoming (NRC Region 4)
License number:	TEXAS #G02344
Organization:	Particle Drilling Technologies
Reporting

10 CFR 30.50(b)(2), Licensed Material Protection Equipment Failure
Time - Person (Reporting Time:+130.47 h5.436 days <br />0.777 weeks <br />0.179 months <br />)
Opened:	Rob O'Donel 16:28 May 1, 2010
NRC Officer:	Howie Crouch
Last Updated:	May 1, 2010
45891 - NRC Website
v • d • e

v t e Emergency Notification System
Particle Drilling Technologies with 10 CFR 30.50(b)(2)
WEEKMONTHYEAR2010-04-26T06:00:00 [Table view]
[ENS list for Particle Drilling Technologies]

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