KVS has been a great tool for me. At last I have access to fare designators again

But I have noticed something unusual this morning. I am trying to apply a 25,000 mile upgrade from my United balance so that I can upgrade Air China 984 from LAX to PEK at 00:40 on 25 December from economy (B) to business. Whenever I search for upgrade info using either SNT: Awards/StarAlliance or ITA: Awards-Upgrades/X1* the KVS tool only shows the United codeshare, and not the main Air China flight. Is there someway I can designate that I want to look at the actual carrier's availability, Air China 984?