On January 7-8, CAAC announced circuit breaker measures for several flights, which were China Southern Airlines’ Flight CZ328 (Los Angeles - Guangzhou) and Flight CZ8140 (Islamabad - Wuhan), Xiamen Airlines’ Flight MF830 (Los Angeles - Xiamen), Air China’s Flight CA770 (Los Angeles - Shenzhen), LOT Polish Airlines’ Flight LO93 (Warsaw - Tianjin), United Airlines’ Flight UA857 (San Francisco - Shanghai), Flight IB2823 (Madrid - Hangzhou) of Iberia Airlines of Spain, Philippine Airlines’ Flight PR314 (Manila - Tianjin), Sichuan Airlines’ Flight 3U8502 (Vancouver - Chengdu), Air China’s Flight CA934 (Paris - Tianjin), China Southern Airlines’ Flight CZ6044 (Nairobi - Changsha), Xiamen Airlines’ Flight MF812 (Amsterdam - Xiamen) and Flight MF830 (Los Angeles - Xiamen), China Eastern Airlines’ Flight MU588 (New York - Shanghai) and China Southern Airlines’ Flight CZ348 (Paris - Guangzhou).