Complex sentence: In 2010, a new flying school was set up by the company Aeros, They currently (2012) have a fleet including Cessna 152's and Piper Warriors, they are based in the White Building on the southside of the airfield.
Split into simpler sentences: In 2010, a new flying school was set up by the company Aeros. They (as of 2012) have a fleet including Cessna 152s and Piper Warriors; they are based in the White Building on the south side of the airfield.