Recently, a Boeing 777-300ER of Air India suddenly turned back while flying from Chicago, USA to Delhi, India. Air India said that the return flight was due to a technical failure. According to media reports, the toilets on the plane were clogged, and 11 of the 12 toilets were unusable. The plane had been flying for about 5 hours at the time, and the final return flight took about 10 hours on the plane.
