dsawan, Mark: tested this mod in 4.12.2 MA5.30:
Works for me when I have the (in my case:
latest) 4.12 SAS Engine Mod installed.
Without I got the 30% freeze when I try to load the plane as you both described it.
Do not ask me why this mod needs some classfile(s) wich in my quick test comes with the EngMod,
Maybe a search for "printCompassHeading" in the google search bar below will help?