▁California ▁A viation ▁Council , ▁a ▁member ▁of ▁the ▁California ▁Aer onaut ics ▁Board , ▁and ▁the ▁Grand ▁Marsh al ▁of ▁the ▁first ▁Airport ▁Day ▁in ▁ 1 9 8 4 . ▁ ▁In ▁ 1 9 8 8 ▁a ▁Federal ▁A viation ▁Administration ▁( FA A ) ▁control ▁tower ▁opened ▁and ▁Sky West ▁Airlines , ▁West A ir ▁operating ▁as ▁United ▁Express ▁and ▁W ings ▁West ▁( l ater ▁merged ▁into ▁American ▁E agle ) ▁were ▁flying ▁comm uter ▁tur b opro ps , ▁West A ir ▁operating ▁the ▁Em bra er ▁E MB - 1 1 0 ▁B ande ir ante ▁and ▁later ▁the ▁B A e ▁Jet stream ▁ 3 1 . ▁ ▁Several ▁other ▁comm uter ▁air lines ▁served ▁San ▁Luis ▁Ob is po ▁with ▁tur b op rop ▁fl ights ▁to ▁Los ▁Angeles ▁( LA X ) ▁including ▁D elta ▁Connection ▁service ▁by ▁Sky West ▁with ▁Fair child ▁S we ar ingen ▁Met rol in ers ▁( Met ro ▁II ▁and ▁Metro ▁III ▁models ) ▁and ▁Em bra er ▁E MB - 1 2 0 ▁Bras ili as , ▁Imperial ▁Airlines ▁with ▁Em bra er ▁E MB - 1 1 0 ▁B ande ir antes , ▁M esa ▁Airlines ▁flying ▁as ▁United ▁Express ▁with ▁Be ech craft ▁ 1 9 0 0 C s ▁and ▁USA ir ▁Express ▁operated ▁by ▁Trans ▁States ▁Airlines ▁with ▁B A e ▁Jet stream ▁ 3 2 s . ▁As ▁of ▁ 1 9 9 6 ▁only ▁American ▁E agle ▁and ▁United ▁Express