My Understanding is:
Must Haves:
JAR-FCL PPL
JAR Class 1 Medical
Driving License (a few points may be overlooked, depending on the strength of the candidate)
Right to Live and Work in UK.
Strongly Recommended:
Night Rating
150 hours total / 100 P1
18-26 y.o.
Character Traits:
Good sense of Humour, especially w.r.t. 3am call outs.
Willingness to work long hours. (see above)
Not put off by the thought of an old fashioned apprenticeship, i.e. painting things, sweeping hangars, cleaning things, (presumably soon) mucking out horseboxes etc.
Safe driver, well used to Motorway driving.
There are plenty of threads about the AA fugly scheme, and they give you a good overview of what life as a fug is about. (some of them linked in this thread) I would recommend that anyone thinking of applying reads and takes in what they say, and has a good think about whether they are suitable. It's not for everyone.
Matty