BrettC113 Posted October 1 Report Share Posted October 1 Hi, I currently am in the process of purchasing my first Mooney, an M20D which has been converted to a C. The prebuy has just been finished today, everything checked out reasonably well, no major standouts. I haven't gotten the official squawk sheet yet, but I did notice myself today at the shop that the upper nose gear truss has the dreaded dents, they're fairly prominent certainly past the 1/32" spec I've read here in other threads. I've researched it as much as I really can, but I am wondering if anyone can give me the specific AD number/name that describes this so I can get the wording verbatim. I tried searching, but I just cant seem to find it. Quote Link to comment Share on other sites More sharing options...
N204TA Posted October 1 Report Share Posted October 1 There is no AD, it’s covered in service instruction SIM20-137. https://www.mooney.com/wp-content/uploads/2020/12/SIM20-137.pdf 1 Quote Link to comment Share on other sites More sharing options...
BrettC113 Posted October 1 Author Report Share Posted October 1 3 minutes ago, N204TA said: There is no AD, it’s covered in service instruction SIM20-137. https://www.mooney.com/wp-content/uploads/2020/12/SIM20-137.pdf Ok, that would make sense on why my searches led nowhere, thanks! Quote Link to comment Share on other sites More sharing options...
PT20J Posted October 1 Report Share Posted October 1 FWIW, everybody seems to refer to the nose gear as a "truss". Actually, the nose gear comprises three parts: the upper part is the truss, the middle part is the leg, and the lower part is the spindle. It is usually the leg that gets the dents, However, if the damage is severe enough it can damage both the leg and the truss. Check the damaged parts against the IPC to determine which parts need to be replaced or repaired. If the damage is over 1/32", I would not purchase the airplane until after it was repaired. If you buy it and move it and it collapses you will be the proud owner of an expensive repair. 4 Quote Link to comment Share on other sites More sharing options...
Fritz1 Posted October 1 Report Share Posted October 1 This repair is pretty standard, any MSC will be able to get the part rather quickly Quote Link to comment Share on other sites More sharing options...
Matthew P Posted October 8 Report Share Posted October 8 Don Maxwell, is one of the quickest and cheapest for getting it done, reach out ot him, he quoted me a 1 week turn around from when they receive it, 1/2 the price of buying one from LASAR Quote Link to comment Share on other sites More sharing options...
cliffy Posted October 16 Report Share Posted October 16 When the plane is up on jacks be sure to check the spindle bolt bushing for excess wear by trying to move the nose wheel fore and aft Excess wear is repairable Also the bolt nut torque is covered by a service instruction for checking its torque every annual. Be advised to find the correct torque figure as it was changed in later years to a lower figure. It also takes a lot of grease every year in the zirc fitting. Quote Link to comment Share on other sites More sharing options...
Shadrach Posted October 16 Report Share Posted October 16 Are you saying that this was not identified by the technician performing the prebuy? The dents are common and easily rectified issue. However, if they were missed during prebuy, I’d have concerns about what else might have been overlooked. Quote Link to comment Share on other sites More sharing options...
BrettC113 Posted October 16 Author Report Share Posted October 16 3 hours ago, Shadrach said: Are you saying that this was not identified by the technician performing the prebuy? The dents are common and easily rectified issue. However, if they were missed during prebuy, I’d have concerns about what else might have been overlooked. I see your concern, I should clarify. When I was present for the prebuy in the shop, it was the first thing I checked (right as it rolled into the shop) since it was mentioned to me from a previous owner that it might have been dented post his ownership. Ultimately I just beat the tech to it as I had a personal checklist while they were doing other things. 2 Quote Link to comment Share on other sites More sharing options...
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