This is ridiculous. Do you really think airline schedules showing aircraft type for certain flights on the day of departure or 2-3 days prior to departure date is out there to deceive people that you find a need to second guess them and call out a witness at the airport? And BTW judging from the way you asked and the time you asked the question, clearly you are not a passenger of today's flight that you are concerned about so why should you even care at the beginning? If you are indeed a passenger, you would have your answers already and not be asking this in the first place. And if you have nothing better to do and need to find out, a quick search on www.flightstats.com, www.flytecomm.com just to name a few, will yield your answers.