From: utzoo!decvax!harpo!npoiv!hou5f!ariel!houti!lime!we13!cwp Newsgroups: net.aviation Title: Modifications? Article-I.D.: we13.410 Posted: Thu Feb 24 12:24:51 1983 Received: Fri Feb 25 06:15:54 1983 Can anyone tell me about the FAR's in regard to updating an older certified aircraft with parts from a newer model. I know that rear windows on an old Bonanza can be added with an STC, but how about a '74 nosebowl from a Cherokee 140 substituted for the old bug-smasher type on my '66 140-4? It would also improve performance to take off the old wheelpants and fit the fairings from a '78 or later Warrior. Craig Payne WE Montgomery