Colour Vision
A friend of mine was wondering, if you fail the CAA class 1 medial on colour vision, and then take the IAA class 1 medical and pass. Can you still convert over a CAA class 1 medical holder. I thought this would be impossible as questions would be asked such as, if you fail on colour vision test for the CAA, and then pass the IAA colur vision test someone of the two was not conducting the test correctly and so on!