No 777 experience, but there’s a lot of talk about failure of the TOGA switch, mode confusion etc.
I’ve only flown one plane with an Autothrust motor. My technique was either:
- push the levers forward, then click the TOGA switch
- push the levers forward while clicking the TOGA switches
I probably exercised that second option more often. The point being, I flew the plane first. Aviate, navigate, communicate, automate.