Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 5605; Flight Crew Type 3899
Fatigue
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors; Procedure; Company Policy
I should have called in fatigued. I flew Flight X the day the 3 days prior. I had one day left on reserve before 2 [days off]. Scheduling called me about 5 hours after landing from Flight X that they were assigning me Flight Y and were rolling my days off. I informed them that I might be fatigued. They said I had 30 hours off and it was legal. Just because it's legal does not mean it's safe. Well if I had to do it again I would have called in fatigued. I was not given a short flight or short duty day. I was assigned one of our longest flights. I was the flying pilot and I could not keep my eyes open for the last 3 hours on the flight deck. And I was making tons of mistakes. I was in no shape to be flying an all-nighter to the other side of the world. And the bunks are far from perfect. The 777-300 bunks are so hard that sleeping is not easy for me. It's like trying to sleep on hard wood. And trying to sleep in turbulence isn't exactly easy either. Overall my performance as a crew member was sub-standard and I was making a lot of mistakes and also just barely able to stay awake. Because I went from a 3 day [international] trip which you have fatigue from even after a night of sleep because you miss 2 nights of sleep; to a 4 day trip. We are not machines and [Company] must not schedule us like we are machines.
B777 First Officer reported being assigned to international trips in close succession resulted in flying fatigued.