{"schema_version":1,"airport":"31D","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"655ec994719c","priority":"fyi","category":"runway","kind":"changed","summary":"runway E: controlling obstacle changed (now 76 ft tall, 299 ft from threshold, 139 ft right of centerline, clearance slope 3:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_CLNC_SLOPE","old":"4","new":"3"},{"field":"OBSTN_HGT","old":"73","new":"76"}]},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"e2755ba52a9d","priority":"fyi","category":"runway","kind":"changed","summary":"runway W: controlling obstacle changed (now 41 ft tall, 13 ft from threshold, 116 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"40","new":"41"}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"ed0482aa8ec2","priority":"fyi","category":"runway","kind":"changed","summary":"runway E: controlling obstacle changed (now 73 ft tall, 299 ft from threshold, 139 ft right of centerline, clearance slope 4:1)","source":"APT_RWY_END","fields":[{"field":"CNTRLN_OFFSET","old":"151","new":"139"},{"field":"DIST_FROM_THR","old":"324","new":"299"},{"field":"OBSTN_HGT","old":"75","new":"73"}]},{"cycle":"2025-10-30","from_cycle":"2025-10-02","id":"c01b6e876542","priority":"fyi","category":"runway","kind":"changed","summary":"runway W: controlling obstacle changed (now 40 ft tall, 13 ft from threshold, 116 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"37","new":"40"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"1e31d5199a7f","priority":"fyi","category":"runway","kind":"changed","summary":"runway E: controlling obstacle changed (now 75 ft tall, 324 ft from threshold, 151 ft right of centerline, clearance slope 4:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"74","new":"75"}]},{"cycle":"2024-11-28","from_cycle":"2024-10-31","id":"98b78918804c","priority":"fyi","category":"runway","kind":"changed","summary":"runway W: controlling obstacle changed (now 37 ft tall, 13 ft from threshold, 116 ft left of centerline, clearance slope 0:1)","source":"APT_RWY_END","fields":[{"field":"OBSTN_HGT","old":"36","new":"37"}]}],"first_cycle":"2024-11-28","last_cycle":"2026-09-03"}