Rwedareyet, if you took time to read the entire thread you would have observed that Westcoaster made reference to 5N a/c not being allowed to fly to the US AND EU countries. You may also have observed that all those who replied his post picked on his inclusion of EU countries.At the moment 5N REG.A/C are not allowed to fly scheduled services to the US. As regards the US it is not a question of individual AOCs but the categorization of the country by the US Dept of transport.You ought to have achieved category 1 status as determined by the FAA and dept of transport to fly to the US.
Nigeria at the moment is working towards this.