Differences training is the training required in order to cover the differences between two different aircraft type ratings of the same manufacturer as determined
by the DGCA.
Differences training has to be defined on a case-to-case basis taking into account the requirements contained in Appendix III in respect of both theoretical and practical elements of type rating training
(iii) A type rating shall only be endorsed on a licence after differences training when the applicant also complies with one of the following conditions:
— having already endorsed on the licence the aircraft type rating from which the differences are being identified, or
— having completed the type training requirements for the aircraft from which the differences are being identified