Missing Parts was a mission on Spineworld.
Vlad Bongo needs to find his missing parts, a Pipe Whistle, a Tackle and a Vent Window for his Skyship.
Go to the Meyan Temple. The Pipe Whistle can be seen. The Tackle is near the Skyport arch and the Vent Window is near the ticket booth. Pick them all up and go back to Vlad Bongo.