Larnaka is the main airport of Cyprus island. It covers a surface of 100 000 m² on two levels, welcomes nearly 9 million travelers per year and was reinforced to be anti seismic. In accordance with public rooms security regulations, the airport was supplied with 9 backup generators providing a power of 200 kW to 1 120 kW and manufactured by Cummins. In order to meet the acoustic constraints in public rooms, F2A performed an acoustic study taking in to account: