The tail of an Air France Airbus A340 aircraft (front) is seen as it takes off at Charles-de-Gaulle airport, near Paris, September 14, 2014. Air France will operate only 40 percent of its flights from Monday as pilots begin a one-week strike over company plans to cut costs to recapture market share from budget airlines, the airline said in a statement on Saturday. REUTERS/Christian Hartmann (FRANCE - Tags: TRANSPORT BUSINESS CIVIL UNREST EMPLOYMENT)