{"schema_version":1,"airport":"1W3","entries":[{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"31cc61d51022","priority":"fyi","category":"runway","kind":"changed","summary":"runway 09: controlling obstacle: none listed -> CROPS 10 ft tall, 67 ft from threshold, 0 ft left of centerline; obstacle clearance slope: 20:1 -> 6:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"","new":"L"},{"field":"CNTRLN_OFFSET","old":"","new":"0"},{"field":"DIST_FROM_THR","old":"","new":"67"},{"field":"OBSTN_CLNC_SLOPE","old":"20","new":"6"},{"field":"OBSTN_HGT","old":"","new":"10"},{"field":"OBSTN_TYPE","old":"","new":"CROPS"}]},{"cycle":"2026-10-01","from_cycle":"2026-09-03","engine":"1.3.8","id":"74ff1fb712f8","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle: TREES 81 ft tall, 832 ft from threshold, 176 ft left of centerline -> TREES 68 ft tall, 664 ft from threshold, 117 ft right of centerline; obstacle clearance slope: 10:1 -> 9:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"176","new":"117"},{"field":"DIST_FROM_THR","old":"832","new":"664"},{"field":"OBSTN_CLNC_SLOPE","old":"10","new":"9"},{"field":"OBSTN_HGT","old":"81","new":"68"}]},{"cycle":"2025-10-02","from_cycle":"2025-09-04","id":"65fdfbc63096","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle changed (now 81 ft tall, 832 ft from threshold, 176 ft left of centerline, clearance slope 10:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"R","new":"L"},{"field":"CNTRLN_OFFSET","old":"111","new":"176"},{"field":"DIST_FROM_THR","old":"636","new":"832"},{"field":"OBSTN_CLNC_SLOPE","old":"12","new":"10"},{"field":"OBSTN_HGT","old":"51","new":"81"}]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"57753dadf5a5","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle changed (now 51 ft tall, 636 ft from threshold, 111 ft right of centerline, clearance slope 12:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"108","new":"111"},{"field":"DIST_FROM_THR","old":"681","new":"636"},{"field":"OBSTN_CLNC_SLOPE","old":"10","new":"12"},{"field":"OBSTN_HGT","old":"67","new":"51"}]}],"first_cycle":"2024-10-03","last_cycle":"2026-10-01"}