Worth noting is that, 1. not everyone follows the law and 2. the quality of the survival gear carried can vary widely. 3. The list isn't all inclusive, by any means.

Remember, if it's not with you, it can't save you(tm). carry essential survival gear on your person.

Having said that, note that govt., medical and similar mission aircraft in Alaska often have both good, professionally cared for survival gear and training requirements. But, it varies widely and it isn't a substitute for being personally prepared.