Lead Ballon:
Read CASR 61.355.
There is a chance that "unaltered" means what it says, and that CASA intended the word to have that meaning.
Then there is 61.360 about false or misleading entries in a logbook with reference to subsection 13.3 (3) of the Criminal Code. It goes on to state that CASA may give written direction to some-one to correct a logbook - does that mean that if we find an entry that needs correction we must apply to CASA for a direction and written instructions on how to make the correction?