Originally Posted by
HermannGraf
By the way, I think the FOs sign not only for the airworthy body and mind like you call it but also the weight and balance and the can, they also check the can is up to date.....
Good FOs have always done that. It is the CA that's signing for the aircraft and has final responsibility for insuring a safe flight. Maybe one day you will understand the difference. If you do, you will eat your words.