I'm not a pilot s forgive me for asking but ... if they are monitoring the fuel levels then how fr away from that 'display' is the gear indicator? My point being how possible is it to NOT see one if you are looking at the other? According to the reports they only noticed the gear was still down on approach, but if they already knew they were on low fuel how likely if the displays are close together is it that they wouldn't have seen the gear indicator?