see item 16 in CAP 42
A pilot, in theory, can remove non-structural covers from an airframe.
However also in the CAAP;
2.5 Pilots and Part 66 B1 and B2 licence holders, carrying out Schedule 8 tasks, are responsible for ensuring they are familiar with, and are able to satisfactorily comply with, any manufacturer’s instructions regarding the maintenance before undertaking any of the tasks identified. CASA strongly recommends guidance should be sought by pilots from a relevant Part 66 licence holder on the correct aircraft maintenance practices and procedures.
If the pilot works for an AOC Holder, this gotcha puts a requirement on the AOC holder to ensure that a pilot has been trained in the identification of non-structural covers, the use of the correct tools, the correct fitment of the cover and the required torque of the fasteners holding the inspection plate.
So if the pilot has not completed the training required for the above, the pilot should refer the CASA Official to the AOC Holder.