1. To renew your SEP Class Rating you will need to pass the renewal LST (
not the whole PPL Skill Test) with an Examiner, including some oral questions. Complete form SRG\1119
http://www.caa.co.uk/docs/33/srg1119.pdf .
2. Revalidate / renew your JAA Class 2 medical. A service bollock-fondler
may be able to do this, but check that he/she is also empowered to issue the actual certificate. If not, find a suitable civilian AME.
3. You also need to have your licence re-issued. As long as you have a valid medical, this is a paperwork exercise (a form to fill and money to the CAA...). Complete form SRG\1102
http://www.caa.co.uk/docs/33/srg1102ff.pdf .
4. Complete payment form SRG\1187
http://www.caa.co.uk/docs/33/srg1187...20feb%2009.pdf .
5. For a foreign licence holder to fly a private aeroplane in the US, the paranoid Spams now require yet another piece of paper from the CAA validating that your licence is OK for them to issue their approval (I think it's still called a FAA Temporary Airman's Certificate?). The form is SRG\1160
http://www.caa.co.uk/docs/33/srg1160ff.pdf and it must be completed by you and sent direct to the UK CAA. Upon receipt of both the SRG\1160 and the official request from the overseas National Authority, a verification will be issued directly to that Authority. This is normally sent by e-mail or fax to keep delays to a minimum.
6. For your PPL(A) reissue and SEP Class Rating revalidation, you can use the CAA's Public Counter Service, see
Public Counter Service Details | Personnel Licensing | Safety Regulation . Ask them to clarify the SRG\1160 procedure whilst you wait for them to process your paperwork.
Good luck!!