Continue the process on the left side, drilling the duct and doubler for screws, then drilled for nutplates. Cleco parts together and countersunk the duct for the screws. Will use "oops" rivets for the nutplates, so used deburring tool to make shallow countersinks for rivets. Decided to add a rivet close to the aft end, so drilled and countersunk for those as well. Deburred all holes and scuffed with scotchbrite.
