At the Fukushima Daiichi Nuclear Power Plant Unit 1, the first survey was being conducted using a drone to check the damage inside the containment vessel in preparation for the removal of nuclear fuel debris, but a malfunction occurred in the equipment on the 29th. , TEPCO suspended the investigation.
In order to remove nuclear fuel debris that was a mixture of melted nuclear fuel and surrounding structures caused by the Fukushima Daiichi Nuclear Power Plant accident, TEPCO has launched four camera-equipped drones into the containment vessel since the 28th to take a look inside the containment vessel. I am conducting my first photographic survey.
On the 28th, two aircraft were deployed to photograph some of the structures, including the opening for replacing control rods on the side of the reactor.
On the 29th, we planned to use two other aircraft to photograph the damage to the reactor, but due to some malfunction, the robot that relays signals to the drones was unable to advance to the target location inside the containment vessel, resulting in an investigation. Canceled.
TEPCO has investigated the cause and hopes to resume the investigation as soon as the problem is resolved, but there are no plans at this time.
Immediately after Unit 1 was hit by the tsunami, cooling of the nuclear fuel became impossible, and it is estimated that most of it melted down in a short period of time and crashed through the bottom of the reactor. The ability to confirm whether there are holes in the image is attracting attention.