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EN Revision Text: FAILURE TO CLOSE AND LOC … EN Revision Text: FAILURE TO CLOSE AND LOCK NUCLEAR GAUGE SHUTTER</br>The following was received via e-mail:</br>Between 2200 EST on January 23, 2019 and 0000 EST on January 24, 2019 a Ronan RLL1 (Density Scale Source) was unbolted from the frame on which it was mounted and placed on the floor. (Source was a Cs-137 0.54 milliCurie decayed to 0.45 milliCurie, Serial #212785A) </br>No permit was pulled to remove the scale source, and the shutter wasn't closed and locked out. </br>After it was unbolted, and was placed on the floor with the beam pointed towards a conveyor belt and the ceiling. </br>Balling line 10, Conveyor 21 was approximately 6 feet above the placed source, and the ceiling is at 60 feet. </br>No employees worked in front of the beam once placed on the floor. </br>No one noticed the scale sitting on the floor unlocked until January 24, 2019 around 1500 EST.</br>Once the source was found, trained personnel put the shutter block in place and locked out the source. </br>The RSO then authorized a permit. </br>Once the source was secured, and permit posted, the RSO did a full investigation. </br>Basic cause - The maintenance employee that unbolted the source entered the area from a direction that could only be accessed during a maintenance down. There was a radiation label on the scale itself, but no sign from his access point.</br>* * * RETRACTION ON 2/18/19 AT 1311 EST FROM LAWRENCE GRAY TO THOMAS KENDZIA * * *</br>Based on the findings of an NRC inspector, this event was determined to not be reportable since the shutter was fully functional and no exposure to personal occurred.</br>Notified R3DO (Duncan), NMSS Events Notification Group by email., NMSS Events Notification Group by email. +
05:00:00, 24 January 2019 +
11:14:00, 24 January 2019 +
05:00:00, 24 January 2019 +
EN Revision Text: FAILURE TO CLOSE AND LOC … EN Revision Text: FAILURE TO CLOSE AND LOCK NUCLEAR GAUGE SHUTTER</br>The following was received via e-mail:</br>Between 2200 EST on January 23, 2019 and 0000 EST on January 24, 2019 a Ronan RLL1 (Density Scale Source) was unbolted from the frame on which it was mounted and placed on the floor. (Source was a Cs-137 0.54 milliCurie decayed to 0.45 milliCurie, Serial #212785A) </br>No permit was pulled to remove the scale source, and the shutter wasn't closed and locked out. </br>After it was unbolted, and was placed on the floor with the beam pointed towards a conveyor belt and the ceiling. </br>Balling line 10, Conveyor 21 was approximately 6 feet above the placed source, and the ceiling is at 60 feet. </br>No employees worked in front of the beam once placed on the floor. </br>No one noticed the scale sitting on the floor unlocked until January 24, 2019 around 1500 EST.</br>Once the source was found, trained personnel put the shutter block in place and locked out the source. </br>The RSO then authorized a permit. </br>Once the source was secured, and permit posted, the RSO did a full investigation. </br>Basic cause - The maintenance employee that unbolted the source entered the area from a direction that could only be accessed during a maintenance down. There was a radiation label on the scale itself, but no sign from his access point.</br>* * * RETRACTION ON 2/18/19 AT 1311 EST FROM LAWRENCE GRAY TO THOMAS KENDZIA * * *</br>Based on the findings of an NRC inspector, this event was determined to not be reportable since the shutter was fully functional and no exposure to personal occurred.</br>Notified R3DO (Duncan), NMSS Events Notification Group by email., NMSS Events Notification Group by email. +
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00:00:00, 18 February 2019 +
21-26748-01 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
12:30:04, 19 February 2019 +
11:14:00, 24 January 2019 +
0.26 d (6.23 hours, 0.0371 weeks, 0.00853 months) +
05:00:00, 24 January 2019 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.