src: Jet operation started in 1975, when the first Tupolev Tu-154B tri-jet was delivered for services from Pyongyang to Prague, East Berlin and Moscow.
tgt: As operações com aeronaves a jato iniciaram em 1975, quando o primeiro Tupolev Tu-154 foi entregue, com o objetivo de realizar rotas de Pyongyang para Praga, Berlim Oriental e Moscou.