It’s worth noting that Four Corners did not contact the Civil Aviation Safety Authority regarding any claims made in the program. CASA has since reiterated that it has confidence that Qantas is operating safely.
Why would 4 Corners contact CASA? they are a current affairs program voicing the concerns of a group of employees. It's the employees concerned that should be contacting CASA, but then again, I've seen how CASA can handle such complaints by telling said individuals to go through the internal SMS, and then sending an email of that to the QF HR manager identifying the naughty child who complained.
The general message is that currently critical workers are at their wits end/limits and the safety issue is somebody is going to make mistakes, that another tired and stretch worker will not catch and so on. They are not saying that there is particularly one thing that is dangerous. Then there's the blatant lie where they said they were using disinfectants and cleaners and not, and then got caught out because worksafe had fined them, for not using cleaners and disinfectants. That then leads to ask what other BS is floating around being denied by management.