Airport codes Abbreviations and Acronyms
- 5B1John H.Boylan State Island Pond Airport, Island Pond, Vermont USA
- 5B2Saratoga County Airport, Saratoga Springs, New York USA
- 5B3Danielson Airport, Danielson, Connecticut USA
- 5B6Falmouth Airpark Airport, Falmouth, Massachusetts USA
- 5B7Rensselaer County Airport, Troy, New York USA
- 5B9Dean Memorial Airport, Haverhill, New Hampshire USA
- 5BKBlack Rapids Airport, Black Rapids, Alaska USA
- 5BLHomer-Beluga Lake Seaplane Base, Homer, Alaska USA
- 5C1Boerne Stage Field Airport, San Antonio, Texas USA
- 5C3Nary National-Shefland Field Airport, Nary, Minnesota USA
- 5CDChandalar Shelf Airport, Chandalar Camp, Alaska USA
- 5COAnimas Air Park Airport, Durango, Colorado USA
- 5D1Stark County Sheriff Heliport, Canton, Ohio USA
- 5D2Northwood Municipal Airport, Northwood, Iowa USA
- 5D3former code for Owosso Community Airport, Owosso, Michigan USA (now RNP)
- 5D5Woolsey Memorial Airport, Northport, Michigan USA
- 5D6Parsons Airport, Carrollton, Ohio USA
- 5D9Bandit Field Airdrome Airport, Clyde, Ohio USA
- 5F0Arcadia-Bienville Parish Airport, Arcadia, Louisiana USA
- 5F1Post-Garza County Municipal Airport, Post, Texas USA
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