airberlin closed the 2013 financial year with an operating loss (EBIT) of €-231.9m (€70.2m in financial year 2012). EBITDAR amounted to €432.7m in financial year 2013 (financial year 2012: €736.4m), EBITDA to €-146.7m (financial year 2012: €144.3m). The Turbine efficiency program achieved the desired contribution of €200m to the cost and turnover side and a number of performance indicators delivered positive results. However, the company was faced with an unexpectedly sluggish summer season due to high temperatures in Central Europe, followed by the traditionally difficult winter period. With a reduced capacity offer of 5.1%, group revenues fell by 4% to €4.147bn. The yield (revenue per passenger) increased by 0.8% to €121.0 (previous year: €120.1). Revenue per available seat kilometre (RASK) increased in 2013 by 1.3% to 7.24 euro-cents (previous year: 7.15 euro cents while the costs per available seat kilometre (CASK) rose by 3.5% including fuel and restructuring charges.