Thank you BFSgrad. I assume the permanent upward warp was the result of the accident, not it's cause.
Summary on
AVHERALD tells it was no aircraft related issue and I can't see any other influence than the PF excessive left rudder.
- It was a 14-17KT crosswind, stronger than wind check from tower suggested, but about half of companys' 35KT xwind limit
- comparison with 12 months data of other flights showed less rudder input, even on takeoffs with stronger crosswind
- simulation showed that the aircraft reaction was consistent with the input given. Expained the yaw to the left runway edge and the roll during liftoff. So no anomaly, and I guess no other contributing factors
- The only anomaly was the aileron deflection during wing scrape (as we found already in the FDR plot), again as a consequence, not cause.
Bad day, and yes, Human factor applying control force without being aware of it.