Depending on how involved you want to get what tools are or can be made available is also a consideration. Some things off the top of my head:
There are fireaxes to use if not lost in the wreckage. Handy for ripping up things or even cutting wood for poles/firewood/splints/whatever.
Seatbelts for strapping things together.
Cargo nets. Depending on the type you might make a useable fishing net - the sort that would sit in at the opening of a stone barrier across a stream or tidal pool. Some string or palm fibre tied between the webbing to reduce the net seive size.
All those pocket knives that we used to conveniently carry in our ....erm.....pocket but now are in the checked-in luggage.
Batteries for spark to light a fire. Possibly something similar using the sun & the landing light's parabolic reflector to heat some tinder.
The fibreglass insulation could be teased apart to use as a wick for the Avtur.
Seat cushions & those thin blankets.
Thin sheets of aluminium folded/bent to make waterproof storage & cooking containers. Thicker stuff for shelter.
It might be possible to make a spark gap transmitter. Useable as long as there's battery power. Christ, Marconi managed it a century ago.
The miles of electrical wiring is a goldmine. Fishing lines, to tie things or make bow fire drills etc etc.