{"schema_version":1,"airport":"4MT7","entries":[{"cycle":"2026-04-16","from_cycle":"2026-03-19","id":"7489e170193f","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 334 TOWN CENTER AVE -> 5000 TAYLOR FORK RD; airport contact city: BIG SKY -> GALLATIN GATEWAY; airport contact zip code: 59716 -> 59730","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"334 TOWN CENTER AVE","new":"5000 TAYLOR FORK RD"},{"field":"TITLE_CITY","old":"BIG SKY","new":"GALLATIN GATEWAY"},{"field":"ZIP_CODE","old":"59716","new":"59730"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"428185915b45","priority":"fyi","category":"airport","kind":"changed","summary":"used for medical purposes: none -> yes","source":"APT_BASE","fields":[{"field":"MEDICAL_USE_FLAG","old":"","new":"Y"}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"512423000b14","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: runway end elevation: none -> 6276 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"6276"}]}],"first_cycle":"2025-09-04","last_cycle":"2026-04-16"}