Boeing has a bulletin out that there have been cases when abeam points are selected the FMS changes the OAT on the wind page to 0. This can affect the predictions and lead to an "insufficient fuel" message. Boeing says before you execute the abeam points you should check the wind page and if it changed to 0 pull up the SAT and enter it for the next fix. It will propagate to all the down track waypoints and be close enough for government work. Maybe some carriers don't want to be bothered and just say no abeam points?
Last edited by MarkerInbound; 16th Jul 2011 at 12:26.