Shannon (EINN) to JFK (KJFK) A318 issue

HI, I believe the fuel planner data is incorrect for the A318 or the fuel flow in flight is incorrect, I just finished a test flight using FSX clear weather (no winds) and ended up landing with 540kg of fuel from 15,823kg. I thought the low fuel issue may be to do with ASN on previous pond flights, but this has proven to be wrong today. I will now show you why I believe something is incorrect with the fuel data and please correct me if iv done something wrong. Hopefully the

Hi Andy320, unfortunately, I cannot contribute anything to solve the issue, but I would like to add that I've been experiencing similar/same issues when flying the A319 CFM in longer flights of about 2000nm. I've also loaded more than the predicted fuel according to the Aerosoft fuel planner and still found myself short of fuel at the destination, with the initial fuel prediction in the MCDU varying quite significantly from what is predicted when more than half-way into the flight.