180 mins ETOPS
You're planning a flight that crosses the atlantic and most of the canadian maritimes are out as well as lpla and kef.
So you're left with kbgr and einn as your 2 etops alts , but with the actual winds you are 3 hrs 36mins from both at the etp.
Flight planners say that the 180 min still air rule is satisfied. Would you depart????