London to Chicago BA flight declares emergency after dropping 28,000 feet

British Airways Boeing abruptly lost altitude over Ireland due to technical issue' and returned to Heathrow

A flight from London to Chicago declared an emergency after a sudden and steep descent of 28,000 feet over Ireland and was forced to turn back to Britain.

British Airways flight BA295 was bound for Chicago's O'Hare airport but after a technical issue" during which oxygen masks were deployed from the ceiling, the plane landed safely back at London Heathrow.