What a total waste of time and energy this whole thing will become. No doubt we can spin our wheels for the next - what? 2, 3 years before a final report gets published and all for what exactly?
The AAIB and others will consume huge resource and present a lovely comprehensive report to tell us what? The Met looked marginal for his planned flight and his ratings and the cost sharing element is parallel to that. BUT to what end is all of this? Cost sharing pros/cons have been done to death, pilots are aware of the rules, the CAA are aware of the rules and even if there is some item of question in this flight so what the pilot is dead.
What would be a better use of time and resource would be free the AAIB to investigate the remainder of what is on their book in a more timely manner and any resource impact for the CAA to spend time and energy going through the rules they have to ensure they say what they think they mean, oh and maybe do the odd ramp check.