Originally Posted by
dream747
The “latched” function refers to the Descent Profile Optimisation (DPO). Not all aircraft have it (refer to FCOM), the NEOs should come with it but it is available for retrofit on the CEOs.
A common misconception, but not true. In our fleet DPO and the latch are completely separate. If an aircraft has DPO then it doesn’t latch and vice versa.