Ixixly
The only crime I can see the young pilot did was not telling someone “after” he made the entry, not for making the entry. It is the PIC legal responsibility to make the entries, not the CP or a maintenance controller/manager, etc. There is clearly an organisational problem in any operator if a pilot is required or feels compelled to report a maintenance issue prior to entering it on a MR. There is though a problem with any pilot who doesn’t report an item he/she has just entered in a MR, especially if it grounds an aircraft. I would’ve ripped any of my pilots a new A*** Hole for committing that crime.