It is becoming obvious that there was not nearly enough legal fuel on board for this flight. At least not legal to any known standards. What I am trying to understand though, is why the flight plan blatantly pointed this fact out: EET and Endurance both at 4h22m.
Was the PIC following some kind of accepted Bolivian charter procedure? 'Fill 'r up and good luck commandante, just annotate your endurance in both boxes so we know you are following your own on the spot fuel planning and we're off the hook'? Why else would you willingly tell ATC, CAA, the dispatchers, everyone that you do not have ANY legal reserves?