I say this as someone who is not a pilot, who has only read reports on the crash via the news and FT, and watched a report on the NTSB findings on NBC Nightly News last night. I also say this as someone who is flying JFK - ICN in March and have no plans to change or alter that booking in any way.

The thing that concerns me most about reports I've read (and this point was discussed during NBC Nightly News last night), is the fact that these pilots were seemingly unaware of the differences between the Boeing cockpit and the Airbus cockpit and what controls and automations were applicable.

As more and more airlines move to a mixed fleet, I think the most important thing to conclude from this terrible accident is that it is imperative that all airlines ensure pilots moving from Airbus to Boeing or vice versa fully understand the differences between the two manufacturers and the systems in the cockpits, this is especially true of airlines going from an all-Boeing/Airbus fleet to a mixed fleet for the first time (such as JAL).