If you worked on a Boeing for x amount of years, and opening a/c doors was nothing more than a routine to you,
then would you not expect that a certain amount of slides might be blown when operating a new type of a/c, with a completely different arming/disarming procedure?
Well forgive the person for being nothing more than human!!
And further more judging from the posts im guessing that most of you that have posted above us dont make mistake as your at the pointy end!!!!??
They ARE lucky that no one was injured as can quite easily happen in such incidents, but thankfully no one was, this should remind all cabin crew to make sure of the doors they are operating on are armed/disarmed correctly depending on the a/c.
How on Earth those trained to work the 3 types of a/c, remember each door day in day out, when most are worked to the bone these days is beyond me! Quite frankly im suprised it does not happen more often!
But lets shoot the person down anyway like so often happens here on pprune!