{"schema_version":1,"airport":"9D1","entries":[{"cycle":"2026-06-11","from_cycle":"2026-05-14","id":"38fb4d8d58c4","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: TREE -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":""},{"field":"CNTRLN_OFFSET","old":"180","new":""},{"field":"DIST_FROM_THR","old":"960","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"16","new":"20"},{"field":"OBSTN_HGT","old":"46","new":""},{"field":"OBSTN_TYPE","old":"TREE","new":""}]},{"cycle":"2026-05-14","from_cycle":"2026-04-16","id":"baa327bd3cf1","priority":"fyi","category":"runway","kind":"changed","summary":"runway 13: controlling obstacle changed (now 46 ft tall, 960 ft from threshold, 180 ft left of centerline, clearance slope 16:1); controlling obstacle: none -> TREE","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"","new":"L"},{"field":"CNTRLN_OFFSET","old":"","new":"180"},{"field":"DIST_FROM_THR","old":"","new":"960"},{"field":"OBSTN_CLNC_SLOPE","old":"20","new":"16"},{"field":"OBSTN_HGT","old":"","new":"46"},{"field":"OBSTN_TYPE","old":"","new":"TREE"}]},{"cycle":"2025-07-10","from_cycle":"2025-06-12","id":"813ba95cfa67","priority":"fyi","category":"airport","kind":"changed","summary":"airport phone number changed to 605-682-1086; name changed: Josey Larsen -> Guhner Kepler","source":"APT_CON","fields":[{"field":"NAME","old":"JOSEY LARSEN","new":"GUHNER KEPLER"},{"field":"PHONE_NO","old":"605-830-5750","new":"605-682-1086"}]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"3c3d36f73477","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Gregory Muni - Flynn Fld -> Gregory Muni/Flynn Fld","source":"APT_BASE","fields":[{"field":"ARPT_NAME","old":"GREGORY MUNI - FLYNN FLD","new":"GREGORY MUNI/FLYNN FLD"}]},{"cycle":"2024-10-03","from_cycle":"2024-09-05","id":"44add7c19de5","priority":"fyi","category":"airport","kind":"changed","summary":"name changed: Josey Larson -> Josey Larsen","source":"APT_CON","fields":[{"field":"NAME","old":"JOSEY LARSON","new":"JOSEY LARSEN"}]}],"first_cycle":"2024-10-03","last_cycle":"2026-06-11"}