The Horizontal Stabilizer front attach bracket (F-1020) was installed. The AN4-12A bolt indicated in the manual was replaced with a AN4-13A for a correct fit, The AN3-12A bolt fit perfectly. The Part originally had holes drilled on both sides which made it difficult to drill correctly. Ed filled in one side of the holes with a TIG weld. This allowed for a nice tight bolt fit. MHC & EJB. Hours: 3