After selecting TO/GA with the A/T Arm switch in the OFF position, what is the FMA thrust mode?

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Multiple Choice

After selecting TO/GA with the A/T Arm switch in the OFF position, what is the FMA thrust mode?

The FMA thrust mode is driven by the autothrottle system. When the A/T Arm switch is OFF, the autothrottle is not armed, so there is no active thrust-mode command for the FMA to display. Even if you move the thrust levers toward takeoff/go-around positions, with AT not armed the system won’t assign a thrust mode, so the FMA thrust field appears blank. In this state you’re effectively in manual thrust control. If you later arm the autothrottle, TO/GA or GA would then be shown on the FMA as those modes become active.

The FMA thrust mode is driven by the autothrottle system. When the A/T Arm switch is OFF, the autothrottle is not armed, so there is no active thrust-mode command for the FMA to display. Even if you move the thrust levers toward takeoff/go-around positions, with AT not armed the system won’t assign a thrust mode, so the FMA thrust field appears blank. In this state you’re effectively in manual thrust control. If you later arm the autothrottle, TO/GA or GA would then be shown on the FMA as those modes become active.

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