김 위원장의 동선 노출을 꺼린 북한이 이례적으로 비행 도중 관체 콜사인인 ‘편명’을 바꾼 것으로 분석된다.
It has been analyzed that North Korea, which was reluctant to expose the chairman of the state affairs commission Kim's movement, changed his official call sign, "flight name" during the flight.