DELHI
Air India flight AI 121 to Frankfurt that took off from Delhi on Saturday afternoon returned to IGI airport three hours later because all four toilets on the aircraft were clogged.
With two full meals, an evening snack and unlimited supply of beverages awaiting the 214 passengers on board, completing the over eight-hour-long journey without a toilet was not an option for the Boeing 787 Dreamliner.
The two toilets in the front for business class passengers as well as the two in the rear were out of order.
Full report here Times of India