That was part of the conclusion of the definitive piece of journalism about the crash: Air France had a habit of training pilots fresh up on a jumbo jet, accumu

That was part of the conclusion of the definitive piece of journalism about the crash: Air France had a habit of training pilots fresh up on a jumbo jet, accumulating the required flight hours in a certified simulator (the “company babies” referred to in the article). Part of the confusion was that under “normal law” (typical flight computer rules), that jet literally cannot stall due to pilot input. Thus they dismissed the stall warnings as erroneous because they assumed the flight data was unreliable in some way. Indeed, once the more senior pilot (who flew light aircraft) was on the bridge, it didn’t take him long to figure out what was going on... and once he did his ability to think coherently broke down because he knew they were in a high speed stall and probably going to die any moment.