Widgeon, without ETOPS aircraft must fly within 300NM of a suitable airport, with ETOPS aircraft must fly within 180 minutes (on one engine?) from a suitable field. My understanding is that airlines can be certified for not only 180 minutes but 120 and 90 minutes as well. Can anyone expand further on this?
I understand that Skyservice lost their ETOPS for their A330 in Europe a while ago due to two engine failures within a couple hundred hours of each other. The engine failures were the fault of the engine manufacturer, my question is this: Are the aircraft and engine companies (Boeing, Airbus, GE, Rolls-Royce) ever held responsible financially for the airlines hardships due to losing their ETOPS certification?