ENS 50342

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v t e ENS Event
00:30 May 30, 2014
Title	Agreement State Report - Failure of Source to Retract
Event Description	The following information was received via E-mail: The Assistant Radiation Safety Officer (ARSO) of Mistras reported to the Division of Radiation Control (DRC) that a radioactive source could not be returned to the shielded position in a radiography camera. The radiography technician failed to connect the guide tube to the stiff extension they were using to make superimposed exposures. When the technician cranked out the source, he cranked the cable past the assembly gear and could not retrieve the source. The technician then roped off the area of the incident to ensure individuals did not enter a high radiation area, and informed personnel at the refinery that an incident had occurred. The ARSO was then contacted and informed of the situation. The ARSO arrived on the scene of the incident and performed surveys near the exposure device to determine what the high and low levels of radiation were. The ARSO selected a spot where he could reach the radiography camera's crank handle that was in an area with a dose rate of 4 mR/hr. The ARSO used a hack saw to cut the crank handle off of the guide tube. Once the crank handle was removed, the ARSO pulled the guide cable to retract the source back into the camera's shielded position. The camera was then surveyed and returned to the licensee's storage facility. No personnel involved in the incident received exposures in excess of the regulatory limits. On May 30, 2014, at approximately 5:00 pm [MDT] the DRC inspectors arrived at the Mistras's facility. The inspectors interviewed personnel involved in the event and collected statements. The inspectors took photographs of the exposure device, collimator, and performed surveys of the camera. The inspectors confirmed that the radioactive sealed source was stopped in the camera's shielded position. Radiography exposure device information: Model INC-100, S/N 4419. The radiography camera contains a 68 Curie Ir-192 source. The event took place at the Chevron refinery located at 2351 North/1100 West, Salt Lake City, Utah. Utah Event Report ID No.: UT140002. * * UPDATE FROM SPENCER WICKHAM TO JOHN SHOEMAKER AT 1919 EDT ON 8/12/14 * * * The following event update was received from the Utah Department of Environmental Quality, Division of Radiation Control via email: No personnel involved in the incident received exposures in excess of the regulatory limits. On May 30, 2014, the day after the incident, DRC inspectors interviewed personnel involved in the event and collected statements. The inspectors took photographs of the industrial radiography exposure device and performed surveys of the device. The inspectors confirmed that the radioactive sealed source was stopped in the device's shielded position. Notified R4DO (Campbell) and FSME Events Resource via email.

ENS 50342 +/-
Where
Mistras Group, Inc. North Salt Lake City, Utah (NRC Region 4)
License number:	UT0600485
Organization:	Utah Division Of Radiation Control
Reporting

Agreement State
Time - Person (Reporting Time:+1618.97 h67.457 days <br />9.637 weeks <br />2.218 months <br />)
Opened:	Spencer Wickham 11:28 Aug 5, 2014
NRC Officer:	Donald Norwood
Last Updated:	Aug 12, 2014
50342 - NRC Website
v • d • e

v t e Emergency Notification System
Mistras Group, Inc. with Agreement State
WEEKMONTHYEAR2023-04-25T04:00:00 [Table view]
[ENS list for Mistras Group, Inc.]

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