An American Airlines flight bound for Dallas in March experienced an engine fire due to loose parts installed in the wrong direction and fuel leaks, an NTSB investigation revealed on Thursday.

American Airlines Flight 780 left Philadelphia International Airport at 7:42 p.m. local time on Monday and was supposed to land in Naples, Italy, at 10 a.m. local time, according to FlightAware.

A Naples-bound American Airlines flight was forced to reroute some 140 miles away because it was too big for the runway -- forcing passengers to take a three-hour bus ride to their final destination.