At least one of them realized it, but not the one flying. From http://www.bea.aero/en/enquetes/flight.af.447/transcript29july2011.en.php http://www.bea.aero/en/

At least one of them realized it, but not the one flying. From http://www.bea.aero/en/enquetes/flight.af.447/transcript29july2011.en.php http://www.bea.aero/en/enquetes/flight.af.447/transcript29ju... : "At 2h10.16 seconds, the pilot in the left seat, the pilot not flying, says “we have lost the speeds” then “alternate law”"