{"schema_version":1,"from_cycle":"2026-10-01","to_cycle":"2026-10-29","airport":"DDH","counts":{"action":0,"ifr":0,"fyi":3},"changes":[{"id":"c63fb156cefa","priority":"fyi","category":"remark","kind":"added","summary":"new attendance schedule remark: For service 886-649-5296.","source":"APT_RMK","original":"FOR SVC 886-649-5296."},{"id":"4f310853e555","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: controlling obstacle: HILL 170 ft tall, 3100 ft from threshold, 425 ft off centerline -> TREES 35 ft tall, 430 ft from threshold, 188 ft left of centerline; obstacle clearance slope: 17:1 -> 6:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L/R","new":"L"},{"field":"CNTRLN_OFFSET","old":"425","new":"188"},{"field":"DIST_FROM_THR","old":"3100","new":"430"},{"field":"OBSTN_CLNC_SLOPE","old":"17","new":"6"},{"field":"OBSTN_HGT","old":"170","new":"35"},{"field":"OBSTN_TYPE","old":"HILL","new":"TREES"}]},{"id":"f904a6e757e0","priority":"fyi","category":"runway","kind":"changed","summary":"runway 31: controlling obstacle: GND 40 ft tall, 509 ft from threshold, 178 ft left of centerline -> TREES 45 ft tall, 572 ft from threshold, 145 ft left of centerline; obstacle clearance slope: 7:1 -> 8:1","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"178","new":"145"},{"field":"DIST_FROM_THR","old":"509","new":"572"},{"field":"OBSTN_CLNC_SLOPE","old":"7","new":"8"},{"field":"OBSTN_HGT","old":"40","new":"45"},{"field":"OBSTN_TYPE","old":"GND","new":"TREES"}]}]}