{"schema_version":1,"airport":"O42","entries":[{"cycle":"2025-06-12","from_cycle":"2025-05-15","id":"b37a3c8632d7","priority":"fyi","category":"runway","kind":"changed","summary":"runway 07: controlling obstacle changed (now 50 ft tall, 980 ft from threshold, 100 ft off centerline, clearance slope 15:1)","source":"APT_RWY_END","fields":[{"field":"DIST_FROM_THR","old":"1100","new":"980"},{"field":"OBSTN_HGT","old":"60","new":"50"}]}],"first_cycle":"2025-06-12","last_cycle":"2025-06-12"}