$500 We will license a single aircraft to use our STC without selling parts.   If your aircraft is not on our AML, or you want to get the installation approved by your regulator prior to installing a kit, this could be an option for you.  This includes an installation drawing, ICA, Moving a PATH tow hook from one aircraft to another? Existing kit customers can get a new license for a different aircraft with return of the original license agreement and proof of a logbook entry stating the kit was removed and license transferred for a reduced amount.