{"schema_version":1,"airport":"4G1","entries":[{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"538af535b3d4","priority":"fyi","category":"runway","kind":"changed","summary":"runway 05: controlling obstacle changed (now 64 ft tall, 353 ft from threshold, 152 ft right of centerline, clearance slope 5:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"68","new":"64"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"a6be50bd6a1e","priority":"fyi","category":"runway","kind":"changed","summary":"runway 23: controlling obstacle changed (now 47 ft tall, 135 ft from threshold, 118 ft right of centerline, clearance slope 2:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"3","new":"2"},{"field":"OBSTN_HGT","old":"43","new":"47"}]},{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"f4dcfbf00c82","priority":"fyi","category":"runway","kind":"changed","summary":"runway 33: controlling obstacle changed (now 37 ft tall, 884 ft from threshold, 169 ft right of centerline, clearance slope 18:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"77","new":"169"},{"field":"DIST_FROM_THR","old":"885","new":"884"},{"field":"OBSTN_CLNC_SLOPE","old":"19","new":"18"},{"field":"OBSTN_HGT","old":"36","new":"37"}]}],"first_cycle":"2026-06-11","last_cycle":"2026-06-11"}