Airport index for Croatia 
A list of airports that were either departure or destination airports for the accident / hijacked flights in the Aviation Safety Network database:
Dubrovnik Airport (DBV/LDDU)Pula Airport (PUY/LDPL)
Rijeka Airport (RJK/LDRI)
Split Airport (SPU/LDSP)
Zagreb (unknown airport)
Zagreb-Pleso Airport (ZAG/LDZA)
