Plane Talking isn’t able to determine the validity of the information provided but the avoidance
@chainsaw, and you call this evidence?
My understanding is that ATSB found that the PIC did not comply with the Procedures as laid down in the approved Procedures Manual.
SEPERATE to this, CASA found that the existing and approved procedures needing expanding. This I can only assume was required to allow for the lowest common denominator - a barely competent Pilot.
As Kharon has pointed out, the number of RCAs, Henceforth to be known as NCNs and previously known as CANs, has nought to do with the argument. One issue can generate several NCNs, each NCN refers to the initial issue but is recorded under a different regulation.
It is important that one identifies Root cause, remedial action and corrective action to get the NCN closed quickly.