As of the early 2000's, only 60%-70% of Alaska had radar coverage. Where you're flying in and out of may not have a tower (Bethel yes, Kipnuk no, Tuntutuliak I doubt it). It's a safe presumption that the pilot does have required survival gear aboard; it's not safe to presume a certain level of quality. Unless you're flying a major carrier (e.g., Alaska Air) out of Anchorage or Fairbanks, passengers are allowed to keep sharp and pokey things on their person.

I approach this challenge by upping the EDC a little bit: a couple more lighters, nalgene with nesting cup, a couple of trauma pads, AMK bivy sack, jacket with enough pockets to hold the extra, etc...everything that's been talked about to death here and on other forums.

One thing to keep in mind - if a flight goes down in AK, there's a good chance there won't be anything to make a fire out of except parts of the wreckage and / or your clothes ;), even during the summer. Yelling for help is imperative. A PLB, sat phone, and GPS should be in the mix as well.