Signing 9S up for this. Canonically he and 2B are able to utilize some inventory and generate objects they carry (most notably, their weapon cache), and limiting this for logistical purposes, some number are likely usable. If nothing else, he's smart enough to collect them and use insulation to separate them if carried manually.

He and Julius have been working on building a usable flight unit/aircraft and lacked a power source, which now they conveniently have. It's possible to power this vehicle with bones and then extract them and hitch a ride back down, as well.