A flight departing from Bradley International Airport in Connecticut, US, made an emergency landing at Long Island Islip MacArthur Airport after a flight attendant reported a suspicious smell onboard.

Flight 693 safely evacuated all 131 passengers and five crew members only to discover the odour had been caused by a coffee maker in the back of the aircraft.

According to reports, it could have been caused by something touching the burner of the coffee machine. While such a problem was deemed fairly unusual, it’s apparently not the first time a coffee machine had grounded an aircraft.