Waiter Posted November 7, 2009 Share Posted November 7, 2009 I changed the oil today. Also cleaned the fuel filters and replaced the engine driven fuel pump (was having fuel pressure problems) Went out for a 30 minute flight, everthing looked OK. (bad Day) As I was taxing back in, the final turn to my hangar row, All the suden, the plane dipped on the right side, and I heard the hydraulic pump kick on. My first thought was the gear was attempting to retract,, but this wasn't true, the Down pump was running. As right side went down, the prop ground into the pavement (it was at idle). I shut everything down and got out of the plane. A quick inspection confirmed my fears, The right gear had collapsed. :( A couple guys came out of the Hangar to see what happened and check to see if I was OK, I was. We gathered up some help, put the plane on a trailer and took it to my hangar. Upon closer look, the culprit was the pivot pin on the gear leg that supports the lower side brace had broken. This pin is pinned to the gear strut. it had broken where it was pinned. The right wing tip has cosmetic damage (little sanding and paint). The prop is destroyed. ******************************** OK, Now the Good news. This failure was going to happen, and there wasn't anything I could have done to prevent it. With that in mind; 1) This didn't happen on the runway while landing or takeoff. This could have been very, very bad, with a good chance of destroying the plane, and possibly fatal. 2) It didn't happen at a remote field. It happen less than 200 ft from my hangar, at very low speed and the engine at idle 3) I had determined that I need to order new prop blades that are cut just a little more course. I had been mauling this over for about two weeks. Well, I guess I can now order the new blades. I was reviewing my performance data with another pilot, I had determined that at cruise, my prop was now operating at the cruise end stop for 2300 rpm. (I used to be able to select as low as 1900 rpm, but can't do it now.) This is caused by the plane being faster and cleaner, the prop blades need to be a little bit more course during cruise. ***************** I'll Call JD Monday and ask him if he has any recommendations on how to repair/replace the lower pin. If your lower side brace pin is secured by a roll pin, you may want to follow this thread, as this may effect you. Waiter Quote F16 performance on a Piper Cub budget LongEZ, 160hp, MT CS Prop, Downdraft cooling, Full retract visit: www.iflyez.com Link to comment Share on other sites More sharing options...
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