Most licensed FISOs self study rather than pay out for courses; if you hold a PPL you already have most of the knowledge anyway; PPLs are exempt from some parts of the FISO exams in the UK; plus to commence training at an airfield as a FISO, you need an ROCC; does the course cover this too?.
I got my FISO License when I was still a valid ATCO in Aerodrome Control; you don't need to take any exams to get the license issued but you still need an ROCC and training for either 20 or 40 hours minimum before you can operate solo.
Last edited by chevvron; 15th Jun 2020 at 11:21.