Hi Stallone.
She checked her crew on aims and it showed 2-CP and 1-FO. The flight left with 3-CP and 1-FO. The 3rd captain(TRI) was called from standby to operate as FO. Now then need to fill his flight to BEJ tomorrow.
If you like to verify this, you can go to aims, and check through flight information. Easy as 1,2,3