Hi Easyheat,
From the UK CAA website,
You can renew a Class 1 medical certificate by taking a renewal examination at an Aeromedical Centre (AeMC) or by appointment with an Aeromedical Examiner (AME), subject to the following conditions:
- If your certificate expired more than 2 years before your application to renew it, the examiner will need to assess your aero-medical records before carrying out the renewal examination
- If your certificate expired more than 5 years before your application to renew it then you will have to follow the same process as for initial issue
Regard's,