Interesting. The bulletin says "engineering aspects are FAA approved". I guess you might interpret that as stating the procedure is FAA approved, but probably only for Lycomings. Better get a field approval. ;)
Folks have been doing it to small Continental engines long before Lycoming wrote the bulletin. John Cooper Skyport Services 4996 Delaware Tnpk Rensselaerville, NY 12147 518 797-3064 www.skyportservices.net
