N3758Y (cn 30814) Delta Air Lines 737-800 N3758Y sits at a gate at ATL October 29, 2007. This airplane has winglets but not the newest livery. Today, this airplane flew four revenue flights. Perhaps these will be the only revenue flights of a Delta 737-800 in this livery with winglets. I think this airplane was used as no other 737 was available. Ship 3758 is in the paint shop this week.