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UK – EU Transition, and UK Civil Aviation Regulations

To access current UK civil aviation regulations, including AMC and GM, CAA regulatory documents, please use this link to UK Regulation. Please note, if you use information and guidance under the Headings, the references to EU regulations or EU websites in our guidance will not be an accurate information or description of your obligations under UK law. These pages are undergoing reviews and updates.

Organisations within the aviation industry are required to submit Mandatory Occurrence Reports to the CAA. These reports cover many different types of 'occurrence' but most will highlight a potential risk to flight safety if they are left uncorrected.

The table below lists all reports received by the CAA under the Mandatory Occurrence Reporting Scheme.

Year Number of MORs
2015 21031
2016 31484
2017 32247
2018 32167
2019 31908
2020 18989
2021 19031

General aviation occurrence reports

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