Turkish Airlines employees largely chose not to participate in the strike that was initiated by Hava-Is Union Labor on May 15 and operations continued without interruption. THY has now extended an invitation to the Hava-Is Union to sign the 24th Collective Bargaining Agreement by May 22, 2013. If it is not signed by that date, THY has decided to grant a pay increase to all employees, whether they are members of the Union or not. This will be done without any changes to the working conditions or social and employee rights