[1][2] The aircraft involved was built in 1979 and after service with a number of operators was leased to Aerounión – Aerotransporte de Carga Unión in April 2002 and registered as XA-TUE.

Also on board was an observer pilot, 25-year-old Manfred Muller, who had 206 flight hours, and 36-year-old aircraft technician Érick Guzmán.

[1] The Direction General of Civil Aeronautics (DGAC) of the Ministry of Communications and Transportation of Mexico (SCT) opened an investigation into the accident.

The stick shaker, stall warning and Alpha Floor protection activated and caused the engines to accelerate to maximum thrust.

In response to the pitch up momentum produced by the accelerating engines the control column was pushed forward however the trim was at 10.25 degrees nose up and was not adjusted.