I'm not sure what you're talking about, but I suppose you're talking about FMC U14.0?
FMC Update 14 (b737.org.uk)- VNAV path tracking priority energy compensation.
- Maintains vertical path by adding thrust when a speed increase command is received via speed intervention.
- FMC will set VNAV target altitude to the current go-to waypoint constraint altitude if the waypoint is an “at or above” altitude constraint to prevent unintended climbs in descent.
Last edited by Banana Joe; 26th June 2021 at 14:25.