The European Aviation Safety Agency (EASA) has announced that as of October 2nd 2018 it has started to accept applications from existing UK approval holders to obtain third-country approvals. These would enable UK-based airlines to continue flights into Europe after a no-deal Brexit.
Should a no-deal Brexit occur, then EASA approvals and licenses held by UK airlines would become automatically invalid overnight, preventing these airlines from flying from the UK to EU countries. The new steps from the EASA are aimed at circumventing this problem and preventing the associated travel and supply chain issues that it would cause.
The EASA points out that this is a contingency measure that will only be required should the UK leave the EU on March 29th 2019 with no agreement with the EU in place. Therefore, the agency says that whether aviation organizations decide “to proceed with a Third Country approval application or not is ultimately the sole responsibility of the applicant.”