I recently found this model in the A3 files and wanted to use it

a3\characters_f\common\headgear_helmet_heli_visor_up.p3d

Once in game it throwns this error:
http://i.imgur.com/CrdFxn2.png

Might just be a typo since all images related to the heli helmets don't use headgear_ infront of the names.
I also can't seem to find any config entries so i guess it was never used or completed...