{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"1B5","counts":{"action":0,"ifr":0,"fyi":2},"changes":[{"id":"8d321302a0cc","priority":"fyi","category":"runway","kind":"changed","summary":"runway 18: controlling obstacle: TREES 61 ft tall, 226 ft from threshold, 147 ft left of centerline -> TREES 42 ft tall, 52 ft from threshold, 98 ft left of centerline; obstacle clearance slope: 3:1 -> 1:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"147","new":"98"},{"field":"DIST_FROM_THR","old":"226","new":"52"},{"field":"OBSTN_CLNC_SLOPE","old":"3","new":"1"},{"field":"OBSTN_HGT","old":"61","new":"42"}]},{"id":"c170ded77eab","priority":"fyi","category":"runway","kind":"changed","summary":"runway 36: controlling obstacle: TREES 56 ft tall, 504 ft from threshold, 135 ft left of centerline -> TREES 97 ft tall, 579 ft from threshold, 166 ft right of centerline; obstacle clearance slope: 9:1 -> 5:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":"R"},{"field":"CNTRLN_OFFSET","old":"135","new":"166"},{"field":"DIST_FROM_THR","old":"504","new":"579"},{"field":"OBSTN_CLNC_SLOPE","old":"9","new":"5"},{"field":"OBSTN_HGT","old":"56","new":"97"}]}]}