FO was 20 years old, fresh out of school, didn't have a type rating which was necessary in this case (which is common practice in Mexico) and I'm told he also flew the Westwind and Gulfstream for the same company, again, no type ratings.
Plane operated under Part 91 but doing charters for hire.
Captain had the type rating but had a VFR restriction (no night VFR in Mexico) and wasn't allowed to carry passengers for compensation, was 78 years old which, correct me if I'm wrong, is fine for Part 91 but this was more like a 135 type of flight.
Seems like your typical executive charter operation in Mexico
