And

*The cost of parts have gone up because of the new system. The cost of maintenance has gone up because of the new system. Owners can't a*ff*ord planes these days and when they do, they can only just a*ff*ord them. However, they still want the plane maintained perfectly and they still have to have their plane yesterday*. (P\_5)

Lastly, the age and cost of the aircraft was thought to be contributing to the financial burden; the expensive nature of planes coupled with their age, which despite a link for more work perpetuated the view that work was simply unprofitable:

*Back when it was [the aircraft] only 10 years old, yeah, \$150 is fine because it didn't need all this major work. Now, you need to be putting money aside for not just your mandatory component overhauls, but major refurbishment: air frame and avionics upgrades, paint interiors, things that have never been replaced in the aircraft's life*; (P\_2)

*We haven't made profit in two years. It's not possible to make a profit, but the customers still complain about the bill*; (P\_5)

And

*The hardship now, really, is that there's a lack of money in the industry, not only, from an engineering perspective, but from the customer's perspective. Everyone's trying to scrimp and save*. (P\_9)

Figure 4 depicts a bleeding brakes scenario created by a participant in the form of their own concept map/mind-map/list which involves many of the central themes and issues across the results of the study, such as competency/experience and manuals, but also shows how concerns and worries around time, cost, business viability, and regulation may telegraph into the work and impact safety and performance.

**Figure 4.** Example SITT scenario constructed as a mind-map by a participant depicting various factors and considerations perceived to be involved in bleeding brakes. Note: Handwriting has been replaced by a typescript to preserve anonymity of participant; size, colour and placement are the same.
