On the road south of Techiix Station you’ll find a bridge (just southeast of a Mining Zone), upon which some Kett are busy scheming. Kill the Kett and search the device on the bridge to determine that the Kett were trying to destroy the structure. Not really an impediment for you, what with the Nomad and all, but if the Kett are doing it, you might as well oppose it. The locations of the bombs… sorry, the "Kett Explosive Devices" are as follows:
- You'll find one bomb on the northwestern end of the bridge, on an exterior (southwest-facing) support pillar.
- Somewhat northwest of the center of the bridge, to the southwest.
- Somewhat southeast of the center of the bridge, to the northeast.
- Along the southeastern end of the bridge, you'll find this bomb attached to the bridge's stone support arch, on the northeastern facing side. There's a Platinum deposit nearby.