INES-event
INES 2

Operation outside limits and conditions at a former MOX facility

On 6th November 2006, at the Cadarache MOX fuel processing former facility ATPu, after a maintenance outage, a double-load of nuclear material has been detected during the preparation of a grinding operation of waste nuclear material from an ancient industrial activity. The analysis demonstrated it was the result of an unrecorded material loading. Indeed, a set of non-approved procedures was used to compensate for a long lasting weight measurement failure. The insufficient information given by the shift-log did not allow the new team to be aware; the next grinding operation was prepared and a new load introduced in excess, in the machine. This event has been without any consequence for workers and the environment thanks to the fact that the double-loading hazard was initially accounted for by the safety provisions of the grinding machine.

Location: CADARACHE
Event date: Mon, 06-11-2006
Nuclear event report
Legenda & explanation