Airport 2G5 is former code for Grosse Ile Municipal Airport, Detroit/Grosse Ile, Michigan USA now ONZ
Similar to 2G5
05U - Eureka Airport, Eureka, Nevada USA05V - Blanca Airport, Blanca, Colorado USA
05WA - Sacred Heart Medical Center Helistop, Spokane, Washington USA
05Y - Henning Municipal Airport, Henning, Minnesota USA
06A - Moton Field Municipal Airport, Tuskegee, Alabama USA
06B - Lucky Landing Marina and Seaplane Base, Bangor, Maine USA
06C - Schaumburg Regional Airport, Chicago/Schaumburg, Illinois USA
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