On March 13, an American Airlines flight was diverted from its destination after the flight crew reported engine vibrations, and its engine caught fire once it landed. The National Transportation Safety Board said in a report this week the engine leaked fuel because of loose and improperly installed parts.

Passengers and crew had to flee an American Airlines plane in Denver after it caught fire in March. A preliminary report from the NTSB shows investigators discovered some parts were loose and installed incorrectly in the engine.