Leaking oil pipe spewed fumes into cockpit and cabin of plane

The Air Accident Investigation report into the Cityjet flight, with four crew and 48 passengers, found that the pipe leak in the number four engine is likely to have caused oil contamination of the bleed air supply used for air conditioning.
The report states that the flight crew noticed fumes and smoke entering the cockpit shortly after departure from Dublin Airport on the morning of May 22, 2014.