1 hr Revalidation flight
Hypothetical question:
you as an instructor fly the 1 hr reval flight with a SEP PPL. You asses his flying to be unsafe and below PPL and even solo standards, even thought he has done his 12 hrs within the last year.
What do you do if he does not realise his flying is not good enough and needs recurrent training? do you refuse to sign his logbook and demand that he does some more flying/training before you sign?