Nigerian airlines are denied over N60 billion revenue every year because they were restricted from operating to about 15 airports after 6:00 PM.
These 15 airports, located at different parts of the country do not have the facilities that will enable most aircraft being operated in the country to land or take off from their runways after sunset.
Consequently, the airlines were forced to cut back their services to cities where the airports are located, including the ones that have high record of passenger movement.
Normally, when runways are being constructed, airfield lighting are installed at the same time, but in Nigeria, government started the obnoxious attitude of approving runways for flight services without the installation of airfield lighting. Also, federal and state governments that built airports in the past seven years, awarded the installation of runway lighting separately from the contract of building the runway, which many industry experts described as an aberration.