F25-01L Left Hand Aft Side Panel.
I drilled the #40 pilot holes for F26-08 Rudder Stop Plate. I used the side skin pilot holes to locate the holes. I marked blue lines on the flanges for the vertical channels #2 thru #5. I then located the vertical channels #2 thru #5 using the blue lines on the flanges lined up with the pilot holes in the aft side skin, The channels were also located down 1/4th inch from the top of the upper longeron. I then drilled the #40 pilot holes in the channels using the pilot holes in the aft side skin as a guide for location.


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