To revalidate a TRI/SFI certificate, applicants shall, within the 12 months immediately preceding the expiry date of the certificate fulfill at least two out of the three following requirements:

1. Conduct one of the following parts of a complete type rating or recurrent training or recurrent training course: simulator session of at least 3 hours or one air exercise of at least 1 hour comprising a minimum of two take-offs and landings

2. Complete instructor refresher training as a TRI(A) / SFI at an ATO

3. Pass the assessment of competence in accordance with point FCL.935

Additionally, for SFI applicants, who are not current on type, they shall have completed on an FFS, the proficiency checks for the issue of the specific aircraft type ratings representing the types for wich privileges are held