made, they set up a 3,300-foot-per-minute rate, which the plane struggled to make. >> the ergonomic design was poor as it should have been a button that showed what mode you were in or it should have been two separate panels. >> other causes cited in the investigation -- below average crew interaction and poor communication and the absence of a ground proximity warning system which deprived the crew of one final warning opportunity. >> given that this was a short haul fast operation, they were going to get a lot of nuisance warnings, and they didn't want that presented to the flight crews all the time. >> airinter defended its lack of a ground proximity warning system saying it would not have prevented a crash. by the end of the year, europe's joint aviation authorities require all transport aircraft to be equipped with a ground proximity warning system.