I'm studying the parts and the nutplates give me pause here. On the nut plates that run along the F1418R and L longeron the instructions have us dimple the skin for all #40 holes, and countersink the #40 holes on the longeron. AN426 rivets are called out. But then the instructions say not to dimple the nut plate. The drawing shows the nut plate on top of the skin, but if it is to not be dimpled seems like it should live inside the channel of the F1418R/L longeron just under the shop head. Which side does it go on? Will the nut plate just settle into the dimpled layers when the rivet is set if it is on top?
Then on the area for the rear access cover the callout seems to have the nut plate on top of the skin but it seems that they must go under the skin for the flush access cover solution to work.
Seems to me all these nut plates have to be on the interior?.. Is that right?
Then on the area for the rear access cover the callout seems to have the nut plate on top of the skin but it seems that they must go under the skin for the flush access cover solution to work.
Seems to me all these nut plates have to be on the interior?.. Is that right?