This is one in a series of articles on Winglets which track the histories of Canadair Regional Jets. MSN 7004 C-GRJJ, D-ACLA, C-FLNS, XA-UHM, C-FYFS, 5Y-BWR Fourth Canadair Regional Jet Built First CRJ delivered to airline service. Operated for Lufthansa Cityline, ALMA de México, and then DAC East Africa who subleased to CMC Aviation. Operating for United …