- the adaptation of gains of the flight management and guidance computer ( FMGC ) and elevator aileron computer ( ELAC ).
Would this be a plausible scenario in an Airbus? The FAC for whatever reason (malfunction, stuck AOA sensor, etc.) was commanding ELAC to command the elevator to nose down and the PF pulled the stick back to try and override this. When this didn't work, the PNF pulled the CBs on the FAC which returned the elevator to manual control (e.g., responding to stick inputs with no limits or protections), but since the stick was already pulled back, a sudden zoom climb ensued before the PF realized the consequences of pulling the FAC CBs.