One task that needs to get done is to install the AN837-4D 45deg elbow at the gear weldments. One of the parts of this task that I have not completed yet was drilling the hole in the F-772 forward bottom skin. The plans have you open up the pilot hole to 5/8" diameter however I purposely did not open it up all the way. The reason why is that I wanted to make sure that the hole was perfectly aligned with the hole in the weldment. The only way to make 100% sure was to actually install the weldments (and bolt them).
Now that it is done, time to center the hole for the AN fitting and open to 5/8" diameter. So after some work with the file and the dremmel I had the opening at 5/8" and perfectly centered.
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