GUNTUR: Indian Air Force on Thursday successfully conducted the trial run of the emergency airstrip set up on National Highway 16 near Korisapadu in Bapatla district.Speaking on the occasion, Group Captian RS Chowdhary said, “The 4.1 km long and 33 meters wide concrete strip was constructed on NH 16 for emergency service facility in Bapatla district. Over 20 such airstrips are being readied across India, and this is the third airstrip after Uttar Pradesh and Rajasthan and the first one in South India.