SpiceJet and GoAir planes were involved in a “near miss” in the Goa airspace after the latter allegedly changed its flight course, prompting the traffic collision avoidance system (TCAS) in the planes to go off. “As the instrument landing system at Goa airport was not available on Saturday, flights were being guided by the ATC. A notice to airmen had been issued in advance that the system will not be available,” said a SpiceJet official. “The GoAir flight, which should have been in the north-west airspace, entered the north-east airspace where Spicejet Q400 aircraft VT-SUD was present, prompting TCAS alert,” the official added. In the Indian airspace, “Reduced Vertical Separation Minima” operations are permitted by the regulator, which allows aircrafts to fly with a minimum vertical separation of 1,000 feet.

Source: Hindustan Times October 23, 2016 14:15 UTC