It's interesting that in the helicopter world there are no pre-certification Maintenance Review Boards. Standard practice in the FW world - Everything to do with maintenance is considered, and is part of the certification process. We ignore it.
And the FW world won't accept pre-flight checks of systems as a way to ensure that a system is working correctly. They don't do hydraulic changeover checks, emergency bus system checks and so on. We accept them as the way things are.
Service Difficulty Reports that are submitted never seem to get reviewed by either the certification agency or the manufacturer, and if they do get reviewed, not much seems to get done to fix common problems.
How many unexplained engine rundowns have happened on the RR250 series engines over the years - engine failed, helicopter crashed, engine runs fine on the test stand....
We do have a long way to go till we get airline level of safety, but we need to start somewhere!