Airbus (AIR.PA) will not abandon its A380 jumbo jet program despite slow sales, its chief executive told Les Echos newspaper, and needs more time to decide whether to redesign its engines as major customer Emirates Airline has requested. Airbus boss Fabrice Bregier appeared to rebuff the request in the interview with Les Echos published online on Sunday. “We are already working on ways to make the A380 more attractive economically by adding seats while preserving the amazing comfort of the plane,” he said.