The flights were logged, just not indicated as solo in any way. Receipts would not help since the issue wasn't whether the flights occurred, but whether they were solo.Did he not log them? Or just not filled out the solo column?
Did he have ways to prove the time like receipts from rental?
And you only need 15 hours. Should have just done that again to have it in the logbook.
I agree. It should definitely have been caught by his instructor.Mark, I really don't think I understand this. That should be caught by the CFI long before the checkride, and the edits made. I know that of the Commercial students I've had, roughly 100% were in exactly the situation, and had stopped logging solo time. Heck, some paper logbooks don't even have a solo column.
And I agree that the existence or nonexistence of a solo column is irrelevant. There are so few solo hours required for the commercial, at most all it should take is a note in the Remarks.