Republic Airways and Delta Air Lines in late July reached an agreement to remove the Indianapolis-based regional airline’s final eleven 37-seat Embraer ERJ 135s from service. Original schedules called for Republic to remove the airplanes at a rate of two per month between this coming November and April next year. The revised agreement resulted in the removal of three aircraft on July 31, followed by four on August 31. Republic plans to remove the final four on September 30. In addition to other considerations, the amendment calls for Republic to fly two more E170s for Delta during the spring and summer of next year. The agreement follows Republic’s announcement earlier in the month that it would lay off 500 workers, or 10 percent of its employees, after United Airlines gave notice that it planned to end Republic’s contract to fly seven 50-seat ERJ 145s as United Express.