problem with AN-14

[zemetrius 0]

greetings folks, i have been having a problem with this aircraft, its one of my favorite STOL so i hope this can get figured out. on a flight i set autopilot for speed at 180,  altitude is set for 9000 feet. no problem so far. i reach 9000 feet.....here is where the problem starts. even when and after reaching 9000 feet the autopilot keep climbing. controls on panel are all set for 9000. this is the only plane i have had this happen on. the plane before this had a normal flight, the one after, normal flight. i have tried a couple of different 2D panels and still it wants to keep climbing after reaching set altitude. all can figure is that its something in the Aircraft config file. i have even tried a couple of different versions of the AN-14, but same results. i am stumped on this....help please anyone.

 

zemetrius