New Delhi, Nov. 4 -- A Delhi-bound Air India flight from San Francisco had to be diverted to Mongolia on Monday due to a suspected technical issue, the airline said in a statement on Monday, adding that the aircraft AI 174 made a precautionary landing safely in Ulaanbaatar and is undergoing checks. The statement added, While there was no confirmation on the technical issue, an official aware of the development said on the condition anonymity that the aircraft may have been diverted due to issues in one of the engines. According to Flightradar24.com, a live flight tracking website, the Boeing 777 aircraft took off from San Francisco at 3.07pm (local time) instead of 2.35pm. htc...