If no deal for leaving the EU is agreed between the EU and the UK, changes to the reporting of Mandatory and Voluntary Occurrence Reports would be required. These changes are dependent on the reporting method you currently use. This page sets out what you need to consider to prepare for this eventuality. Regulation EU (No) 376/2014 has been translated into UK legislation, the existing requirements on who reports and what’s reported under this regulation remain unaffected.
Would I still have to report in an ECCAIRS /ADREP compatible format?
The CAA would retain the ECCAIRS platform under an existing ICAO - EU agreement. Organisations already compliant with the reporting format element of EU376/2014 via a software solution to the CAA are unaffected. Organisations currently working towards a compliant software solution shall continue this work, following the advice on the CAP 382 pages of the CAA Website.