Originally Posted by
Whopity
ICAO Annex 19 is aimed at member States; each State is responsible to ICAO for compliance and notification of any differences. The oversight afforded by EASA is not covered in the Annex 19 process and ammounts to nothing more than a middleman that has no responsibility to ICAO as it is neither a State nor a member.
The UK as an ICAO signatory commits to doing certain things but lots of the things it tells ICAO it does are actually things EASA does for it. When or if it leaves the EASA / EU there are a long list of things it will no longer have the technical ability to do and so either there is a massive increase in CAA capability (like 300 extra staff and five to ten years according to RAeS) or there is a load of state differences being filed by the UK and the associated risk control actions by other states for dealing with non-compliant signatories.
Picking on one tiny bit of Annex 19 .. it requires a system to collect, analyse and exchange safety data. How do we do that today...oh look it's via a pan European system that the UK only has access to through its membership of the EU / EASA. So come Brexit day, without an agreement, the UK loses access to a central support of its state safety program. Now maybe the CAA has kept the software for the MOR scheme kicking about on an old database somewhere and can solve this one... but this is just one of a very very long list of technical capabilities the UK is required by ICAO to have and will no longer have. Multiply this by everything else currently done by EASA and then think of the damage done by a decade of Cat 2 status to the UK industry.