phxcobraz Posted March 12 Report Posted March 12 Plane is in getting some new avionics done right now and we are a bit miffed as to how to best replace the back 2 nut plates(closest to windshield in center) for the center cover section. They have been broken for some time and we had previously just put some nuts on the bottom, with a normal machine screw in place. This makes it pretty difficult to disassemble and reassemble, takes 2 people usually. Anyone had success with options here? See image below Quote
N201MKTurbo Posted March 12 Report Posted March 12 I would drill out the rivets holding that center bracket in place, remove the bracket, replace the nut plates and replace them then rivet it back in. I would probably make a new bracket without the antenna hole in it. 2 Quote
phxcobraz Posted March 12 Author Report Posted March 12 On 3/12/2025 at 6:03 PM, N201MKTurbo said: I would drill out the rivets holding that center bracket in place, remove the bracket, replace the nut plates and replace them then rivet it back in. I would probably make a new bracket without the antenna hole in it. Expand I will have to look, I can't say I saw the rivets holding it in at either end, but they could just be painted over, that might be the easiest and cleanest way to do it. Quote
phxcobraz Posted March 12 Author Report Posted March 12 On 3/12/2025 at 6:19 PM, bluehighwayflyer said: I’m not saying it’s ideal, but a couple rivnuts would probably suffice. Expand I thought about rivnuts too, we would probably have to drill the holes out larger the fit in a rivnut. Quote
phxcobraz Posted March 12 Author Report Posted March 12 Yep center section was easy to take out. Thx @N201MKTurbo 2 Quote
TaildraggerPilot Posted March 13 Report Posted March 13 Is it really that easy to get the reinforcement structure / crossmember out to replace the impossible-to-get-to rear nutplate? Quote
RangerM20 Posted March 13 Report Posted March 13 I did one of these on my C model. I located a nutplate with the screw, drilled from the bottom up, countersunk the hole through both of the layers, then riveted it in. I didn't take anything apart. 2 Quote
Aerodon Posted March 13 Report Posted March 13 I use click bonds in places like that. clean the inside surface well with a small scotchbrite pad and then epoxy in. These come with the epoxy, but I have successfully used JB weld 'steel' slow drying epoxy. 5000psi if you mix it properly. If you get stuck finding nut plates in small quantities send me a PM. Aerodon Quote
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