I see good old beeky is still peddling his misinformation about OATS. My information is that two instructors were suspended for refusing to fly, one had a valid reason and has been re-instated, the other, who had not flown at all that day, did not have a valid reason and has not been re-instated. Sounds OK to me.
CAP 371 is a red herring. Aerial work at a flying school is regulated by the ANO and the school's Operations or Training Manual. I'm told that no instructor at OATS has come anywhere near either limit.