QF is correct, for some awards when business class is not available it rounds down to economy. Many other airlines also do this, but AA always rounds up (so it books into first when business is not available due to 2-class service). AA does operate 2 class flights within the US as Y-F and within NA as Y-J (with the same cabin and service for J and F, so it is very much an artificial distinction). A rather unfortunate quirk of the QFF, but I recall running into it before. If you booked the same award on AA it would book into Z (award first class) instead of T (award economy), but that requires using Aadvantage miles instead of QFF miles. Rather ironic that an award called "Oneworld" has very different terms and conditions and costs on the various Oneworld airline (unfortunately QFF offers the worst of the Oneworld awards).