Trto
 

We currently operate under a standard FTO for ab initio training and need to add on TRTO for 22,44,206.

Any body give a clue whats involved and why we can't do type conversions for licence holders under the standard FTO.

Who says you can't??? All you have to do is to add an appropriate training syllabus for the mentioned types. Being an FTO you should have a Quality Assurance Programm so there really is no reason to apply for a TRTO.

You are even able to do type conversions for licence holders simply by adding an appropriate training programm to your AOC. The reason for that again: the required quality assurance programm which already is part of your AOC.