I was wondering after having watched this AF Cargo 74F landing at NRT, on what may caused the left wing spoilers, except one to not fully deploy? (clearly visible in the video) Full right aileron all the way down? (they deploy towards the end of the video)
The crosswind was from the right, as he lands you can see he (or she!) uses left rudder to re-align the aircraft with the runway. Doing so on a swept wing aircraft results in the right wing lifting. In addition, standard technique is to hold into wind aileron (right in this case) at speed to prevent the into wind wing lifting (this applies to just about all fixed wing aircraft). Therefore, the pilot will apply a considerable amount of right aileron on touchdown in such conditions. As he slows down he will centralise the ailerons.
With regard to the spoilers, some of them are used in flight with aileron to create roll. If you apply right aileron, then the right wing's flight spoilers will extend to reduce lift on that wing to roll to the right. If all the flight spoilers are already extended or should be extended (say with speedbrake or on landing to reduce lift), then right aileron will lower the left wing's flight spoilers to increase lift on that wing to roll to the right.
Does that make sense?