10 January 2012
TOP FUSELAGE SKIN AND REAR FUSELAGE ASSEMBLY
Top fuselage skin
The top longerons was attached to the top skin and drilled with a #40 drill bit from front to rear.
With a #40 drill bit, the lateral and diagonal L angles for the top fuselage skin were drilled.
The diagonal L angles was confirmed that it did not overlap the lateral L angles at the top skin.
Bottom fuselage skin
L angles for the bottom skin were repaired, trimmed and deburred ( alodine preparation ).
Then, the bottom skin were deburred.
The holes for the nut plater in the bottom skin arpound the access holes was expanded to ¼”.
The screw was used to positioned the nut plate to drill the rivet hole in the bottom skin.
With a #40 drill bit, the nut plate was back drilled into the bottom skin. The holes were then deburred and clecoed.
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