yyz-hkg. i thought equipment change, but
SPOTTERS shows that it should be kpo flying into yyz (since 827 is the turnaround flight of 828)... so i'm not entirely sure if that's the case. will report if anything out of the ordinary occurred when i arrive in hkg.
Update: You were all right. It's an equipment swap to a 77D. I'm cursing myself now for forgetting to charge my camera the night before.