Yeah if she was still alive I'm sure she would have found a phone somewhere. Unless she really is kidnapped or suffering from amnesia and wandered off somewhere.
"There is nothing recognizable, neither material nor human" in the wreckage found in the state of Nuevo Leon, Ruiz Esparza said. The impact was so powerful that the remains of the plane "are scattered over an area of 250 to 300 meters. It is almost unrecognizable."
She either died, or she's alive wandering somewhere. There are really no other scenarios. I doubt that some drug cartel was randomly in the same area when the plane crashed, picked her up and kidnapped her.