Refueling machine of Reactor 5 malfunctioned

The refueling machine of Reactor 5 malfunctioned on 12/4/2014. Tepco has difficulties to remove fuel even from an uncrippled reactor.


The alarm of low air pressure went off when they rolled down the mast of refueling machine to inspect the inside of Reactor 5.

The alarm went off in the same operation on 12/6/2014 too.

Reactor 5 contains 548 fuel assemblies.

The cause hasn’t been identified. Tepco plans to inspect the refueling machine.




Français :

Dysfonctionnement de la machine de ravitaillement du réacteur 5


La machine de ravitaillement du réacteur 5 a mal fonctionné le 4 décembre 2014. Tepco a des difficultés pour retirer des combustibles même d’un réacteur non dévasté.

L’alarme de chute de pression d’air s’est déclenchée lorsqu’ils ont déployé le mat de la machine de ravitaillement pour inspecter l’intérieur du réacteur 5.
Elle s’était déclenchée le 6 décembre 2014 au cours de la même opération.
Le réacteur 5 contient 548 assemblages de combustible.
La cause n’est pas encore établie. Tepco prévoit d’inspecter la machine de ravitaillement.

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


December 2014