The correct terminology gets complex when trainers and cruise captain FOs enter the team, not needed now. Perhaps for the sake of this specific discussion, we could narrow it down to
PIC (rank) who is seated on LHS. Has the ultimate authority and final responsibility
F/O (rank) who is seated on RHS.
There are only two cases,
i)
PIC acts as PF and is steering the plane, TLs included. Despite some black-and-white academics, indeed he is monitoring the inside of the cockpit as well, and that means not just the PFD.
FO is the PM. His responsibility to monitor and clearly announce. He follows any sequence of drills in the support role as required.
ii)
FO is the PF who is steering the plane. Any of the trained, rehearsed and briefed trajectories which will be selected to match the events unfolding.
PIC assumes the role of PM. He will execute the support actions for the FO during any drill which is being called by either of them or might follow automatically in the SOP sequence.
Dissecting the immediate moment after a failure, for both GO and STOP, requires us to describe who will
+ observe
+ announce
+ respond
+ confirm
+ evaluate
+ decide
+ declare
+ approve
+ overrule
+ act
+ correct
For clarity, it's best also to say whose hands are guarding the TLs at the moment of failure.
Respecting a bit of slightly different flavouring here and there, we have
- the 'traditional' setup (the whole world except BA and ..... ?) sufficiently described in #18 above,
- something in between (?)
- the BA standard.
Last edited by FlightDetent; 24th Nov 2022 at 20:33.