Multiple inspectors are challenged with systems that pass thru a fire separation or fire wall. This can be the fire inspector looking at a fire sprinkler pipe which passes thru a 1.o hour fire separation or the Plumbing Inspector who is looking at a water filled pipe. The common practices is to plaster red caulk through out the space until the void is filled.
This picture is in a a E use group building:
The question at hand, does this meet code? Which inspector is required for ensuring final compliance? By the way, I think there could be more then one issue here, lets see what you think….