A flight from Zhoushan in East China's Zhejiang province to Chengdu in Southwest China's Sichuan province was diverted to Ningbo in Zhejiang just after takeoff due to a mechanical failure, according to online posts. Flight 3U6960 of Sichuan Airlines took off from Zhoushan airport at around 18:58 and was expected to arrive at Chengdu Tianfu International Airport at 23:20 on …