OK let`s see things here... TAP`s safety record is not the best around, but it`s not the worst either... overall it`s good
Those things seem dificult to me!
Falsyfing maintenance records... lye
erasing faults from logbooks... it`s almost impossible to do so, since I believe TAP still uses the old logbooks, ie, non-electronic logbooks.
inspections performed and signed off by unqualified personnel... not so difficult to believe! That`s the only one I believe that might have happened.
Cheers