Just place this into your AI Dornier 228-200 aircraft cfg. file and add the appropriate number in place of the xx.

[fltsim.xx]
title=AIA D228 Vision Airlines
sim=Dornier228
model=wotf
panel=
sound=
texture=vision
atc_id_color=0xffffffff
atc_id=N402VA
ui_manufacturer=Dornier
ui_type=Dornier 228
ui_variation=Vision Airlines N402VA
description=For AI use
visual_damage=0
atc_parking_types=RAMP
atc_parking_codes=RVL
atc_airline=Vision Air
atc_heavy=0
atc_flight_number=

[fltsim.xx]
title=AIA D228 Vision Airlines N403VA
sim=Dornier228
model=wotf
panel=
sound=
texture=Vision Airlines N403VA
atc_id_color=0xffffffff
atc_id=N403VA
ui_manufacturer=Dornier
ui_type=Dornier 228
ui_variation=Vision Airlines N403VA
description=For AI use
visual_damage=0
atc_parking_types=RAMP
atc_parking_codes=RVL
atc_airline=Vision Air
atc_heavy=0
atc_flight_number=