Airport codes Abbreviations and Acronyms
- 28MIMiller-Herrold Airport, Cedar, Michigan USA
- 28NVineland-Downtown Airport, Vineland, New Jersey USA
- 28SSunnyvale Aviation Weather Reporting Station, Sunnyvale, California USA
- 28TSabine Pass Supplementary Aviation Weather Reporting Station, Sabine Pass, Texas USA
- 28VARadford Army Ammunition Plant Heliport, Radford, Virginia USA
- 28YNorth Manitou Shoal Coast Guard Lifesaving Station / Weather Observation Station, Leland, Michigan USA
- 29AIsland Lake Airport, Wasilla, Alaska USA
- 29ARWhite County Memorial Hospital Heliport, Searcy, Arkansas USA
- 29BBoston Coast Guard Lifesaving Station / Weather Observation Station, Hull, Massachusetts USA
- 29CGrindstone Air Harbor Airport, Port Austin, Michigan USA
- 29CLChildrens' Hospital of Los Angeles Heliport, Los Angeles, California USA
- 29COSt. Marys Hospital and Medical Center Heliport, Grand Junction, Colorado USA
- 29DGrove City Airport, Grove City, Pennsylvania USA
- 29FJoe Vaughn Spraying Airport, Kress, Texas USA
- 29FDGadsden Memorial Hospital Heliport, Quincy, Florida USA
- 29FLHalifax Hospital Medical Center Heliport, Daytona Beach, Florida USA
- 29GPortage County Airport, Ravenna, Ohio USA
- 29NKroelinger Airport, Vineland, New Jersey USA
- 29PNSt. Vincent Health Center Heliport, Erie, Pennsylvania USA
- 29SGardiner Airport, Gardiner, Montana USA
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