The teenager charged with racially abusing a Brisbane train security guard has now been fined for breaching bail after being discovered at Schoolies.

Just over five weeks ago, Abdel-Kader Russell-Boumzar faced court over an alleged racist rant against Queensland Rail security guard Josphat Mkhwananzi.

Russell-Boumzar was tracked down after a video of the incident was uploaded to Facebook and drew widespread condemnation, including from Prime Minister Tony Abbott.

The footage showed Russell-Boumzar unleashing a tirade of abuse against Mr Mkhwananzi, including calling him a "black dog" and telling the guard to "learn some f***ing English".