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| Entered date | Event description | |
|---|---|---|
| ENS 53274 | 20 March 2018 09:52:00 | At 1130 PST on 3/19/18, with the reactor at 100% power (100 kW thermal), GE Hitachi Vallecitos Nuclear Test Reactor violated their Technical Specifications (NDO 32765, section 6.1.3.1) when the licensed reactor operator became sick, called for the backup licensed reactor operator, and left the control room. The backup licensed operator entered the control room less than 30 seconds after the other operator left. There were other trained but unlicensed operators in the control room. The reactor remained at 100% power with no issues. This notification is the 24 hour notification required in accordance with GE Hitachi Vallecitos Nuclear Test Reactor Technical Specifications (NDO 32765, section 6.1.3.1). The Technical Specifications also require a 14 day written report which will be submitted. The facility has initiated a corrective action report (28168). GE Hitachi Vallecitos Nuclear Test Reactor, license R-33, is a 100 kW thermal Light Water Highly Enriched Graphite Moderated Reactor. The licensee notified their NRC Project Manager. |