As for the unit 7, in order to conduct in-core inspections,
we have been removing fuel assemblies from the reactor core to
the fuel storage pool since Oct.11th.
At 3:05 pm, today, we found that one control rod could not be 
extracted, when pulling out control rods after removing fuel assemblies.

There is no safety hazard, because all fuel assemblies adjacent to
the control rod had been extracted and supported stably by the Double
Blade Guide.

We will inspect this event to find the causes.