His plane has no transponder.. he has no radio... he didn't call in his last position as he crashed.. the helicopter crew that found him didn't tell anybody where they were.. all the helicopter's comms equipment similarly gave up ????
As if that's bad enough.. we get the most stupidly obvious ending .. he waves and sets off a flare but .. despite being obviously spottable the rescuers appear to have somehow missed him.. so he lays down to die.. as the rescuers land behind him
Films like this have to be more realistic.. this was just avoiding reality to make 'drama'