Mon May 4 2009

Installing F-704 doubler blocks

Well, my AN509-8R19 screws arrived from Bon Aero today. These are the replacements for the ones I ordered last week. I really only needed four, but they were only a few cents each and I figured I'd order some extras just in case.

It didn't take long to get them installed once I was able to find the correct torque spec. The recommended torque is 12-15 in-lb. It took about 3 in-lb to overcome the nylon locking feature of the nut, so I torqued these to around 18 in-lb. Good enough!

A little dab of torque seal and she was good to go!