The crash of Jenni Rivera's Learjet 25, which killed all seven occupants, was attributed to a "series of factors" by Mexico's General Civil Aviation Administration.
Investigators suggested a problem with the horizontal stabilizer might have caused the plane's sudden and abrupt loss of control, leading to a rapid vertical drop.
Contributing factors included the significant age disparity between the pilots (78 and 21 years old) and the aircraft operator's failure to note previously identified crewmember failures.
Due to the extensive damage to the aircraft, investigators could not definitively determine the exact cause of the crash, though weather and inflight fire were ruled out.