It was a Hainan Airways aircraft .What I heard on nights was that it arrived in the parking area too fast and 18 meters off line, tried to brake but the area was contaminated with skydrol and the aircraft skidded and hit our aircraft (G-RAES).
A replacement aileron has been borrowed from Boeing and is being shipped from LAX, will take a few days to get to LAD though.Team being sent out from LHR to do the repair.
D