Originally Posted by
LOWI
3) My personal favourite shown to me a few years ago by a clever F/O.
Enter AAA waypoint, don't EXEC. This will create a DISCONT after AAA. DELETE CF32. Then you'll have AAA, DISCONT, RW32. Then re-enter CF32 after AAA. Bring CF32 to the top and now EXEC.
Apparently this recalculates the 3 deg path only from CF32 waypoint and removes the FLAPS UP SPD from the DESC page.
I've only seen it done once by the F/O and it worked.
Only risk to this is, let's say CF32 has a speed or altitude constraint, when you re-enter CF32, you need to also re-enter the speed/altitude constraint too.
Sounds very complicated.
It's been a while but if you want the FMC to recalculate the path, just reset a cruise altitude/level and once the path is calculated re-engage the path descent?