Without giving too much of the story away about this piece, it is highly recommended that you have the following items crafted and on you when approaching the left entrance to the Aurora:
* Radiation suit.
* Propulsion cannon (https://subnautica.fandom.com/wiki/Propulsion_Cannon
* Repair tool.
* Laser cutter tool.
* Fire extinguishers (x4). There are a few in the Aurora, but bringing extra will give you an edge.
* Upgraded oxygen tank.
The valuable Prawn suit fragments are inside the Aurora, but most importantly the damaged reactor leaking radiation is in the center. Good luck and don't forget to go inside all of the cabins, as there are a lot of useful goodies in there!