EASA B1 to B2 type differences course timing limitation
 

I'm currently looking at a couple of EASA B1 to B2 type differences courses. It has been approx ten years since sitting the initial B1 courses and I have been actively certifying B1 & C on both types since. I hold B2 on another similar type which again I'm actively certifying on.

I have heard that there maybe a limitation on the time elapsed from the initial type course to completing the differences course of four years. As I can't find anything in EASA does this ring true with anyone and if so could they point me in the right direction in the regulations?

Thanks

same question you asked on air mech was answered