Can someone who flies ops in a 3 man or more crew please tell me how with whatever the company SOP is to prevent this and at least 3 people supposedly independently cross checking the data entries and subsequent V speed and thrust setting results no one picked, eg 230 instead of 320 tonnes being used in the takeoff calcs???
Our ACARS RTOW requires us to enter the ZFW & the TOW it will reject any entries where the TOW and the ZFW are too close for the intended flight or are obviously inverted.
ie ZFW 230 / TOW 232 or ZFW 320 / TOW 230 we also preset (Boeing) flap 20 V2 based on our TOW, if it's not within a couple of knots it's either a gross weight error or a flap 10 dept which is 5 knots faster.