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Feed tube level sensor was found to be in … Feed tube level sensor was found to be in a state such that it has failed as an IROFS (Item Relied On For Safety) for a fire accident sequence leading to the loss of a criticality control. Another IROFS is in place and the accident sequence continues to meet performance requirements. Less than a safe mass was always maintained. This event is being reported because only one item relied on for safety, as documented in the Integrated Safety Analysis summary, remains available and reliable to prevent a nuclear criticality accident, and has been in this state for greater than eight hours.</br>Portion of the plant affected: FMO (Fuel Manufacturing Operation) Press.</br>The licensee notified the North Carolina State Radiation Protection Branch, New Hanover County Emergency Management, and NRC Region II.</br>* * * UPDATE ON 4/3/14 AT 1457 EDT FROM SCOTT MURRAY TO DONG PARK * * *</br>On 3/6/14, GNF-A (Global Nuclear Fuels - America) conservatively made a 1 hour event notification (EN 49878) due to a discovery that a feed tube level sensor had failed. After further review, it has been determined that a second control remained available, reliable, and the remaining IROFS was sufficient to meet performance requirements. As a result, the event notification is retracted.</br>Notified R2DO (Vias) and NMSS EO (Lombard).otified R2DO (Vias) and NMSS EO (Lombard). +
15:26:00, 6 March 2014 +
11:22:00, 6 March 2014 +
15:26:00, 6 March 2014 +
Feed tube level sensor was found to be in … Feed tube level sensor was found to be in a state such that it has failed as an IROFS (Item Relied On For Safety) for a fire accident sequence leading to the loss of a criticality control. Another IROFS is in place and the accident sequence continues to meet performance requirements. Less than a safe mass was always maintained. This event is being reported because only one item relied on for safety, as documented in the Integrated Safety Analysis summary, remains available and reliable to prevent a nuclear criticality accident, and has been in this state for greater than eight hours.</br>Portion of the plant affected: FMO (Fuel Manufacturing Operation) Press.</br>The licensee notified the North Carolina State Radiation Protection Branch, New Hanover County Emergency Management, and NRC Region II.</br>* * * UPDATE ON 4/3/14 AT 1457 EDT FROM SCOTT MURRAY TO DONG PARK * * *</br>On 3/6/14, GNF-A (Global Nuclear Fuels - America) conservatively made a 1 hour event notification (EN 49878) due to a discovery that a feed tube level sensor had failed. After further review, it has been determined that a second control remained available, reliable, and the remaining IROFS was sufficient to meet performance requirements. As a result, the event notification is retracted.</br>Notified R2DO (Vias) and NMSS EO (Lombard).otified R2DO (Vias) and NMSS EO (Lombard). +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 3 April 2014 +
SNM-1097 +
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>.
23:09:28, 24 November 2018 +
11:22:00, 6 March 2014 +
-0.17 d (-4.07 hours, -0.0242 weeks, -0.00558 months) +
15:26:00, 6 March 2014 +
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.