FS2004 Aer Arann ATR 42-300 flight2000it 15 years ago FS2004 Aer Arann ATR 42-300 Aer Arann’s new livery for the ISDT ATR 42-300 v1. By Robert Fischer. 2 Mb FS2004 – Aer Lingus Regional ATR 72-600FS2004 – Santa Barbara Airlines ATR 42-300Aer Lingus Regional celebrates first year of service with record breaking month and new fleet