Comment by unyttigfjelltol

The strongest tell for me was that he hiked first to the crashed plane. The broken plane isn't going to save him, ergo, by going there first he suggests he knows he knows that he does not need saving. The second tell is he didn't show the part where he declared a mayday to air traffic control, or radio anybody. Either it didn't happen, or the exchange explains why he knew he needed to hike rather than wait. The third is where he encounters the driver at the end and buries the lede-- plane crash-- instead making it sound at first like an emergency landing.