EASA B1 to B2 type differences course timing limitation

[orion1210]

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

[BluFin]

same question you asked on air mech was answered