For the Dynon Heated PitotTube/AOA Probe, a Gretz Aero, LLC non-chromed Mounting Bracket Kit was ordered. Started by deburring all parts included in the Mounting Bracket Kit. Sanded off rust and primed the steel streamlined bracket mast for future rust/corrosion prevention. Decided to mount the mount in the suggested location by Gretz Aero, Dynon, and Van's Aircraft, which is the next bay outboard of the last (outboardmost) inspection access cover plate on the bottom of the LH wing. Match-drilled holes on aluminum bracket plate according to template provided and the instructions found in the Gretz Aero, LLC Pitot Tube Mounting Bracket Kit.
Test fitting Bracket Plate on LH main spar and rib