{"schema_version":1,"airport":"SD55","entries":[{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"de8bd0738413","priority":"action","category":"runway","kind":"changed","summary":"runway 12/30: length: 2700 -> 3000 ft; width: 30 -> 100 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"2700","new":"3000"},{"field":"RWY_WIDTH","old":"30","new":"100"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"5a99a95b3fed","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: 39704 -- 212TH ST -> 39704 212TH ST; name changed: Jack W. Winter -> Jack W Winter","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"39704 -- 212TH ST","new":"39704 212TH ST"},{"field":"NAME","old":"JACK W. WINTER","new":"JACK W WINTER"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"1b81c38ea4b6","priority":"fyi","category":"runway","kind":"changed","summary":"runway 12: runway end elevation: none -> 1309 ft MSL; markings: none -> none; touchdown zone elevation: none -> 1309 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"1309"},{"field":"RWY_MARKING_TYPE_CODE","old":"","new":"NONE"},{"field":"TDZ_ELEV","old":"","new":"1309"}]},{"cycle":"2026-03-19","from_cycle":"2026-02-19","id":"c6694048721b","priority":"fyi","category":"runway","kind":"changed","summary":"runway 30: runway end elevation: none -> 1313 ft MSL; markings: none -> none; touchdown zone elevation: none -> 1313 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"","new":"1313"},{"field":"RWY_MARKING_TYPE_CODE","old":"","new":"NONE"},{"field":"TDZ_ELEV","old":"","new":"1313"}]}],"first_cycle":"2026-03-19","last_cycle":"2026-03-19"}