p_pilot = createPed( 61 , 0 , 0 , 0 ) 
    setElementInterior(p_pilot,1,0.8457262635231, 35.5, 1199.555) 
    setElementCollisionsEnabled( p_pilot, false ) 
    setPedAnimation(p_pilot, "INT_OFFICE","OFF_Sit_Bored_Loop") 
 
this should set a pilot skin to be sitting in one of the pilot's chairs in the shamal interior. 
i have removed unnecessary stuff from my script, which shouldn't affect the outcome - and i know for a fact it works.