Plane code for 190A4 1.42ATA

[Lagarto]

Try FW_190A4FR (I guess FR stands for 'Fully Rated'), you might also want a skin folder under the same name, which is missing.
Generally, whenever a new a/c is added, I select it in a test FMB mission, save, then check the file to see what name it was assigned. The other ones are:

TBD1
CantZ506B
MOSQUITO18
HS_123A1
HS_123B1
KI_45_HEI
KI_45_TEI