Hangar 9 P-47 Thunderbolt Assembly Manual page 29

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Step 15
Tie the preinstalled string onto the servo extension. Gently
pull the extension through the wing using the string. Untie
the string when the servo lead has been pulled through.
Use tape to secure the servo lead to the wing to prevent it
from falling back into the wing panel.
 
Step 16
Place the hatch cover in position in the aileron opening.
Measure in 1/8" on all four sides of the hatch. Drill four
1/16" holes at the intersections of the lines as shown.
Note: Drill through the servo hatch and the
underlying hatch mounts. Use caution not to
accidentally drill through the top of the wing.
Section 12: Radio Installation
 
Step 17
Remove the servo hatch cover and re-drill the holes using
a 5/64" drill bit. Use 2–3 drops of thin CA to harden
the underlying wood. This will prevent the screws from
crushing the wood when they are tightened. Secure the
hatch using four #2 x 3/8" screws.

Step 18
Repeat Steps 9 through 17 for the remaining
aileron servo.
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