The principles of the programme are simple: in each EU Member State and those States who have entered into a specific ‘SAFA’ Working Arrangement with EASA (*), third country aircraft may be inspected. These inspections follow a procedure common to all Member States and are then reported on using a common format. If an inspection identifies significant irregularities, these will be taken up with the airline and the oversight authority. Where irregularities have an immediate impact on safety, inspectors can demand corrective action before they allow the aircraft to leave.