{"schema_version":1,"airport":"8N4","entries":[{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"3dd2a763c3cf","priority":"fyi","category":"runway","kind":"changed","summary":"runway 20: controlling obstacle changed (now 86 ft tall, 27 ft from threshold, 29 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"B","new":"L"},{"field":"CNTRLN_OFFSET","old":"","new":"29"},{"field":"DIST_FROM_THR","old":"0","new":"27"},{"field":"OBSTN_HGT","old":"100","new":"86"}]}],"first_cycle":"2025-08-07","last_cycle":"2025-08-07"}