Namaste Tom
Have flown heights up to the service ceiling of the AS350B3+ which is 23,000' PA that can be as high as 26,000' AMSL depending on the on the pressure that day. Landing often for Rescue around 20,000' to 22,500' & twice at 23,000'. Pretty serious up there though, you're truly limited with no margin to play with.
Happy Landings
VF
