ah, this is where the bearing rift comes in! like how pot pies and bee were saying in the other thread, if they don't follow the exact bearing then something happens...oh! oh! oh! i know:

they will find out about this disasterous rift that exists. and they have to follow the bearing exactly or else they die or end up in another time or something. so for some reason or other, claire and aaron split into two different choppers or two different trips with the chopper, and one makes it while the other...does not.

huh? whaddya think?!?!?!