Interesting link Chris - thanks. One I hadn't seen.
Safe life: The following is from the notice of Airbus FCOM changes in December re the emergency descent:
- Memory actions identification:
The memory items are written in such a way that the flight crew should easily identify the actions that they should perform by memory.
Therefore, all action lines identified as memory items in the EMERGENCY DESCENT procedure are surrounded by a thin solid line box.
- The Passenger Address announcement of the emergency descent to the cabin is moved after the ATC notification. This comes from a certification requirement on A350, in order not to delay the initiation of the emergency descent. The other programs have been harmonized with A350 procedure
And for those on Flysmart, if you select the explanatory notes tab you get all the reasoning and logic for the changes in blue on the page.