Tried to track down the "stuck mic" problem. Cut PTC wire from stick grips but it didn't make the issue go away so I reconnected that wire and wrote an email to Stein asking for advice. Worked on the baffles for final assembly. Worked on left side aft baffle and cylinder #4 baffle. Riveted everything up and riveted on nutplates for oil cooler. Attached aft baffles on left side and #4 for final assembly.