Mass Effect 3 has a wide array of "Fetch [X] from System [Y]" missions that can be obtained simply by listening to conversations overheard from people on the Citadel as you're walking past.
The problem with this is that the entries these missions make in your Journal are incredibly vague. For example:
Citadel: Improved Power Grid A technician at Purgatory on the Citadel needs an improved power grid to keep things running. Find schematics for a new power grid and deliver them.
Unfortunately you pick up a lot of random stuff when scanning the various systems in the galaxy (war assets, fuel, salvage, etc.).
Is there any indication given via a Journal update to show when this (or any) mission item has been found?