KARACHI: Pakistan has made key progress in the aviation sector with the installation of a modern radar system, Mode S, at major airports citing expected rise in flights after doubling its airspace routes, media reported on Sunday. The development came after the formal approval of the Air Navigation Plan 2025 by the executive committee of the Civil Aviation Authority (CAA), sources told media. The aviation authority has started implementing the new plan citing expecting a hike in revenue up to 25 to 30 per cent after increasing its airspace routes from seven to 14 sectors in accordance with the international aviation regulations.–Agencies