boac....having previously operated there and reviewing the topography, the accident initial impact seems to be on an upslope, then sliding over the top to the top of the rise where the airport lies, also RE the monitoring, not sure of UPS' task sharing procedures, but generally speaking the pilot monitoring has the task of monitoring inside to assure the pilot flying has not fallen prey to some optical illusion and developed a wrong mental picture, resulting in significant deviation from the desired flight path...which is very possible during a night approach with scattered cloud layers...