Approvals & Policies Approvals & Policies At Airbase we take pride in having a detailed and process driven quality management system. This is supported by our EASA Part 21G, Part 145 and ISO 9001 (pending) certifications. UK.21G.2710 Approval Certificate Download CAA.UK.145.01456 Approval Certificate Download UKAS No.4010 Certificate Download EASA.UK.145.01456 Approval Certificate Download Airbase Terms & Conditions Download