Red Sands English translated (Not complete)

[Loistian]

I have a little question:
Im stuck with the "Iridium Chainsaw"-quest. These items are in my backpack:
and my quest log looks like this:

I still need one item and dont know where to look, can anybody help me out?
(Its not the item from elon, since i already have a chain. I suppose the quest log entries got mixed up during translation or something)