Does anyone know whether George can legally log the hours as Pilot in command
No. Because he has not carried out the required T/Os & LDGs in previous
90 days in order to legally carry you as a Pax.
Also does he have a valid medical?
and in the case of an accident caused by George would he be liable
I reckon that, especially in the Land of the Free, there will be many lawyers
who would make a good case for this - easier to get money out of a (rich?)
manufacturer that has mega-buck liability insurance.
And George obviously did malfunction: T-1000 Cybernetic Organisms
are not permitted to (try and) self-destruct!