There was a strange occurrence on American Airlines Flight AA109 from London to Los Angeles. 6 cabin crew members and two passengers suddenly fell ill, forcing the plane to declare an emergency landing and return to London. When they landed at Heathrow, passengers said they were not told anything other than they should remain in their seats. An official from the London Fire service got onboard the plane to carry out tests on the air inside the cabin before passengers were allowed to disembark but their luggage was confiscated for analysis.
American Airlines has so far refused to speculate on what may have caused people to feel unwell, saying only that ‘paramedics evaluated passengers and crew. None requested further medical attention.’