Overview inspection of fuel assemblies is made to confirm integrity of fuel was kept during irradiation. Two fuel assemblies with maximum burnup in each assembly type are inspected for fuel rod damage, deformation, and gap clearance change through visual observation.

Shipping inspection is made to check for leakage of radioactive materials from fuel assemblies. Fuel assemblies are covered by channel boxes. Shipping caps are placed on the channel boxes in the core and they collect water inside each channel box. The presence of radioactive material leak­age is evaluated by 131I concentration in the water sample.