BeeBopp
Hi
About 9 months ago leaving from LGW on a 767 I got controller saying something that I found funny. The FO was flying and me being the PM. London comes and says confirm the cleared level 170 not 168. I had read back FL170 just about 10 sec back. It annoyed me but I looked at MCP ALT SEL window and voila, I had 16800 set in it. It took me some digging around to find out about the system but it seems to work atleast in UK. Don't know about the rest of Europe.