4 September 2010
Installing nutplates on seat ribs

5.5 hours

F-916C spacers
F-916C spacers (Full size)

Made these from a piece of aluminum bar.

Priming seat ribs
Priming seat ribs (Full size)

Deburred, dimpled, cleaned and primed the seat ribs. I primed them now because nutplates need to be installed before assembling them for skin hole drilling. I also fluted the ribs to make them lie flat.

Inboard rib removable flange riveting
Inboard rib removable flange riveting (Full size)

Those pieces of the flange on the inner ribs are riveted to a strap so they can be bolted in place. Riveted them together with the squeezer.

Flanges bolted back in place
Flanges bolted back in place (Full size)

ditto

Riveting nutplates on ribs
Riveting nutplates on ribs (Full size)

Each of the ribs has 3 nutplates. Riveted those into place with the hand squeezer.


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