Serius Incident to the Airbus A319 registered B-6202 and operated by China Southern Airlines and the Airbus A330 registered B-5960 and operated by Sichuan Airlines on 03/05/2017 en route [Investigation led by AIB / Myanmar]

Preliminary data based on the notification from the Myanmar authorities:

CSC 603 was descending the same flight level 350 with the distance of 46km to CSN 6068 while they were on A-599, Yangon FIR between LSO and LINSO.CSN 6068 had to made an immediately right turning on course 125 degrees to avoid the opposite CSN 603 by the Kunming ACC.