It has been revealed there were 32 other incidents of aircraft engine doors falling off according to today's safety report.
Airlines are being told of the dangers and to ensure they meet proper maintenance procedures.
The report says: "This event has shown that the consequences of fan cowl door detachment are unpredictable and can present a greater risk to flight safety than previously experienced."
Of the previous incidents is says: "80% occurred during the take off phase of flight. On some occasions significant damage was caused to the aircraft, however, none of these events had resulted in a subsequent engine fire."