yep CTD is normally when you havent defined the correct path to the p3d, although there are some other occasions when there is something wrong with the p3d, now the first thing ive noticed is youve got a two engine plane, make sure youve coded the propellors right, not with velka and mala vrtule (helicopter coding which CTD's on plane class configs) and make sure you have "vrtule" (1st), "vrtule 1" (2nd propellor) and also use vrtule blur and vrtule staticka, its probably best to look at the c-130 model if this is your problem