Xoxon, you do not make it clear whether you already have a licence, or whether you are training towards a JAR-FCL PPL(A).
Assuming you haven't yet gained your JAR-FCL PPL(A), there is nothing to stop you doing your 5 hours Microlighting, but it must be with an authorised Microlight instructor or it will count as 'interested passenger' time and be worth........nothing.
However, if you already have a JAR-FCL PPL(A) with SEP Class Rating, your Microlight training must be with an 'appropriately qualified flying instructor'. Once that's been completed, the balance of the 5 hours experience can probably be conducted with a fellow group member if he/she is an instructor. Otherwise you can't really log the time.
Regarding revalidation of an SEP Class Rating, that is a 24 month requirement. Whereas the JAR-FCL PPL(A) is only issued for 5 years. So, if your licence doesn't yet need re-issuing after the 5 year cut-off, you need either to revalidate (if the SEP Class Rating is still valid) or to renew (if it has lapsed). You can revalidate either by experience (12 hours TT on SEP of which 6 as PIC; 12 t/os and ldgs and 1 hour with an instructor (FI or CRI(SPA)) must be included in these 12 hours) - or you can revalidate by test. Which means the SEP Class Rating LPC - less extensive than the PPL(A) Skill Test - with an Examiner.
If you've gone past the 24 month point (but it's less than 5 years since your SEP Class Rating was valid), then you need to fly the SEP Class Rating LST - much the same as the SEP Class Rating LPC - with an Examiner.
If you still don't understand all this, go back and read Air Law again. You should really know this stuff!
Lastly, there is no point whatsoever in maintaining separate personal flying logbooks! Keep everything in one.
Last edited by BEagle; 27th January 2008 at 20:51.