Question
IndiGo becomes the first airline in Asia to land its
aircraft using the indigenous navigation system.What is the name of the navigation system?Solution
 IndiGo becomes the first airline in Asia to land its aircraft using the indigenous navigation system GAGAN, with Localiser Performance with Vertical Guidance (LPV) approach.  India becomes the third country in the world to have their own SBAS system after the USA and Japan.
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