As you re-enter the village, pick up 2 boxes of pistol ammo, one on the left and the other on the right when facing the bulk of the wreckage.

The Village Plateau Base Camp is right here if you need to rest or make upgrades. You'll also find a document (6/7), a note from Reyes to Roth which is part of the Endurance Officers set, lying beside the campfire.

Explore the area around the wreckage to find 2 food caches and a salvage trunk.

Inside the broken fuselage, there's more pistol ammo and another food cache.

After picking up the goodies inside the plane, jump from the upper opening onto the broken nose section of the aircraft. Move to the edge and jump to grab the grassy ledge above. Pull up.

Crack open the salvage crate and pick up another GPS cache (14/15) and some arrows on the ground to the right. Scramble up the wooden wall and follow the path up and around.

Burn the salvage net at the bend...

...and smash another salvage crate at the top.

Use your axe to climb the rough wall ahead, climb around to the right and then up to the ledge above.

If you missed the 9th GPS cache or 4th Illumination Challenge statue near this hut, you can get them now. (See the Part 2 walkthrough for details.)

Then use the zip line to slide down to the ledge where the tail of the airplane landed.