aspen31 wrote on Apr 18^th, 2021 at 3:11pm:

Hi "Initial Reference", top left corner, "gross weight" doesn't happen all the time - seems more likely at the higher aircraft weights. Warren

Usually that's not filled in by pilots. Are you putting in your actual ZFW in LSK 3L? That's usually how it's initialized and gross weight is auto calculated by the airplane. But you're right it should accept all values up to the MTOW. Try loading the plane to a high weight like 254,000lb and putting in the respective ZFW into PERF INIT LSK 3L and see if it accepts that and see if your LSK 1L will now show the high gross weight.