{"schema_version":1,"airport":"57TN","entries":[{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"7b5588f5b32b","priority":"action","category":"runway","kind":"changed","summary":"runway H1: length: 80 -> 40 ft; edge light intensity: none -> perimeter (PERI); width: 80 -> 40 ft","source":"APT_RWY","fields":[{"field":"RWY_LEN","old":"80","new":"40"},{"field":"RWY_LGT_CODE","old":"","new":"PERI"},{"field":"RWY_WIDTH","old":"80","new":"40"}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"f37de18b7d67","priority":"fyi","category":"runway","kind":"changed","summary":"runway H1: runway end elevation: 1869 -> 1863 ft MSL","source":"APT_RWY_END","fields":[{"field":"RWY_END_ELEV","old":"1869","new":"1863"}]}],"first_cycle":"2025-08-07","last_cycle":"2025-08-07"}