I know it, but I believe this can be a grey area, let me try to express myself. The structure the sentence is made confuses me, because it states 'excluding approval of first solo flights by day
OR by night' since the student who is doing the night rating is already holding a PPL and has done is first solo by day, and in the sentence it says "or" not "and" my basic knowledge of logic says to me (1 or 0 =1) and (1 and 0 = 0) so it if the day flight is positive(1)
the result is 1 or 0 = 1 so he/she should be able to authorize the first night solo. I think the right way of making the same statement should be "excluding approval of first solo flights by day and by night and first solo navigation flights by day and by night." thanks for the reply and I must have been confused because english is not my mother tongue.