Here is a list of 3rd party libraries, which I use for my airports and recommend to download, if you not already have them. For the ease of use, I give you links to my drive to let you download, but of course you can always get them elsewhere. The copyrights are to the respective owners.
RTMM libraries
RTMM libraries
They give you most free available objects and cover EZ library objects and many others.
Four parts to download:
MAIW (Military AI Works) library
MAIW (Military AI Works) library
Very good library for Military objects, which I also use on civil airports from time to time.
3D People library
3D People library
I use them to make my airports living. The people are static though. But still better than without I think.
Fedex Warehouse library
Fedex Warehouse library
Something coming with many free sceneries. I never got the original from this, so source is unknown.
Vintage Military Objects
Vintage Military Objects
Runway Arrestor Net
Runway Arrestor Net
East European Blast Shelter Library
East European Blast Shelter Library
Airfield Essentials from Soarfly
Airfield Essentials from Soarfly
Small Airstrip Objects by Steven Schwarz
Small Airstrip Objects by Steven Schwarz
Vector Landclass Libraries
Vector Landclass Libraries