Time: 1.5 hrs
TAF released Service Bulletin #0017 on 7/1/2020 which supersedes Service Bulletin #0012. The service bulletin is for 4 rivets used to attach the stop pieces to the control horn on the elevator torque tube. Some of these torque tubes used aluminum rivets in this location that could shear off so TAF requests that these be checked and if found to be aluminum rivets then replace with stainless steel ones.
Getting to the the above mentioned rivets is relatively easy. You need to remove a seat and the rear floor cover. You then inspect visually. Mine looked to be stainless steel, but it was a little hard to tell so I used a small magnet on the rear stems of the rivets to see if the agent would attract them. There appeared to be not be attached to it so it looks like I’m good. Though I was considering using them to 4mm rather that 3.2mm which I saw one builder do which seems like a good idea.
Also Midwest Sky Sports had a good video on it that was available in the Sling Builder Facebook group.
Anyways it looks like I’m ok with this AD.
TAF sent a Service Bulletin on 8/18/2019 on replacing rivets in the wing spar and fuselage with stainless steel rivets. I guess the aluminum ones will start to give too much and cause cracking in the paint. Fortunately I haven’t riveted the skins onto the wings yet so at least that part I don’t have to redo, but I will need to drill out and replace all the rivets along the bottom to the main spar in the fuselage.
And then there was this. Well it looks like I have to take the engine off and send it back in to get the exhaust valves changed out. Just when I thought I was making progress. I have a real desire to want to sell the plane and not deal with this thing anymore, but I will probably press on. I can’t believe I waited a year to get the engine and then it sat in a box for weeks and then 2 weeks after I put the thing on they release this. It’s my freakin’ luck. So not happy.
Received Service Bulletin #0010 from TAF today for Rib 601 in the tail cone. It basically says if your have a Rib 601 with aluminum of 0.64mm in thickness then you have to do annual inspections of this part and not in your airframe log book. If you have 0.8mm then you’re OK. Fortunately it looks like I have 0.80mm material there so I should be OK, even though the materials list in the kit shows it as 0.64mm. I’ll just have to remember to log in in the airframe log book when I get one.
Held tight on the material. Also measured in a few places and all come out to 0.8mm