Complex sentence: At the 2011 Paris Air Show, Airbus announced that 667 firm orders were placed, including major orders from Indian low-cost carrier IndiGo for 150 aircraft and Malaysian low-cost carrier AirAsia for 200 A320neo, the largest commercial aviation order at the time.
Split into simpler sentences: At the 2011 Paris Air Show, Airbus announced that 667 firm orders were placed. A major order came from Indian low-cost carrier IndiGo for 150 aircraft, and Malaysian low-cost carrier AirAsia for 200 A320neo, the largest commercial aviation order at the time.