According to AIC 72/2007 there have been changes to JAR-FCL2:
General requirements for instructor ratings and authorisations (JAR-FCL 2.310) Revised pre-requisites for FI(H) course (JAR-FCL 2.320A), restricted privileges (JAR-FCL 2.320B) and revalidation of FI(H) rating (JAR-FCL 2.320G). Reduction in experience for TRI(H)course pre-requisites (JAR-FCL 2.330B). Amendments to courses for TRI(H)(Appendix 1 to JAR-FCL 2.330C) and IRI(H) (Appendix 1 to JAR-FCL 2.340C).Introduction of Synthetic Training Instructor (STI(H)) (JAR-FCL 2.360A to 2.360F).
These effectively require Helicopter experience to become an STI(H); however due to the shortage of suitably qualified people there are some dispensations in place to allow fixed wing STIs to conduct some helicopter training in an FNPT.