Other than the report released by the Korean Aviation Accident Investigation Board, Liu Yajun, the head of the Chinese investigation team, stated, An ATC official in the airport, Park Junyong, did not own a license for air traffic control issued by the South Korean Construction and Transportation Ministry.
Ademais do informe publicado pola Xunta de Investigación de Accidentes de Aviación de Corea, Liu Yajun, xefe do equipo de investigación chinés, afirmou, Un traballador do ATC no aeroporto, Park Junyong, non tiña unha licenza de control de tráfico aéreo emitida polo Ministerio de Construción e Transporte de Corea do Sur.