Well I received my Salvadorian I.D called a DUI. The DUI I got because both my parents are Salvadorian. They went to El Salvador to get a birth certificate under my name which I have rights to because both my parents are from E.S. Once I got the DUI I applied for the passport which proves you can work in E.S. So to sum this up and answer your question about outsiders applying......you NEED a Salvadorian passport and an insider who can give the chief pilot your Cv. Flight time and experience in central america really doesnt matter. Its who you know that can get you in. I have 2000TT and 500 multi, no turbine time. So if anyone has additional insight or has interviewed with other airlines in Central America, your info would be greatly appreciated.