Nigerian Airspace Management Agency, NAMA, has completed the routine calibration of the Very High Omnidirectional Radio Range/Distance Measuring Equipment (VOR/DME) and the flight commissioning of the Instrument Landing System/Distance Measuring Equipment (ILS/DME) of the Kaduna Airport ahead of the closure of the Nnamdi Azikiwe Internatinal Airport, Abuja. The Kaduna Airport will serve as alternate airport during…