One of the most hotly debated topics in aviation is the subject of leaning the engine… How to do it, when to do it, what are you doing when you do it.  EFA President Mike Goulian has found a great article from our friends at Avweb.com .  This article by author Mike Busch does a great job of explaining the subject of engine leaning.  Click here to download Mike Busch’s article: CHT, EGT, and Leaning!