http://airlineroute.net/2014/06/24/tg-syd-w14update1/
THAI has updated its Bangkok – Sydney schedule for Northern Winter 2014/15 season, which sees 3 weekly TG471/472 service operated by Boeing 777-300, starting 26OCT14, instead of Boeing 747-400 aircraft.
TG471 BKK0815 – 2135SYD 773 246
TG475 BKK1820 – 0740+1SYD 744 D
TG476 SYD1000 – 1525BKK 744 D
TG472 SYD1705 – 2235BKK 773 357
My F booking SYD-BKK-LHR is now totally ******. Moved to business class departing SYD the following day, arriving in BKK 22 hours after my LHR flight has departed.
I never did trust TG with this booking after the bizarre schedule changes previously announced (then reversed) for TG472 so fortunately I already have plan B booked.