I don't know if anyone already got the same problem but i didn't find a solution for this.
I got the Inertial Element but then went back to get the Helm and some Missle Packs. No i got 100% Objects but can't get back to the Exploding Room. The Door, right next of the Bridge you lowered won't open now. But this is the only way to get to the Exploding Room.
What can i do to open this door ?