Sed saves the day

Map Location: Grand Staff Construction Base
Area: Main Platform
Errand Starter: Confused Technician Kalaus and Anxious Looking Technician Orth
Available After: Sed joins party

You will find the two technicians on the main platform (Northwest Construction Base) in front of a large magic engine whose pendulum is not moving. Talk to both technicians and they will complain that the engine is beyond repair. Talking to the second technician will trigger a cutscene where Sed volunteers to repair the engine. Your prize is 6 Pieces of Living Brass for your Ring Assembly.