Kathleen Duguay of NB Power tells CHSJ News this is an important milestone in the refurbishment.
She says it's a very complex task because the workers need to ensure it's the fuel bundle has been inspected and it's the going in the right sequence inside the reactor.
Each fuel bundle is about the size of fire log and weighs about 22 kilograms.
The reactor is due to be restarted this fall.
