The pilot in the LHS was brand new to Darwin, straight out of flying school. The pilot in the RHS was his “supervisory pilot” - there to provide line training. He was only “qualified” as such off the back of a couple of circuits within 24 hrs or so of the accident. He only had a couple hundred hours himself and had been in the region for a handful of months during the dry season.
As offered above - not the aircraft’s failing, more likely a function of structured training lacking, pervading culture within the organisation and a shortage of experience all round to develop the newbies.