F-1236A step ribs and a few other parts suspended from bungee cords in front of the heater to absorb the radiating warmth.
After the primer on the W-1236A step angles had a couple of days to cure, all the F-1236 step angles were secured onto the F-1212 step ribs with Clecos and then riveted in place.
Securing the F-1236A-R step angle onto the F-1212 step ribs with Clecos.
Using the hand rivet puller to rivet the F-1236B-L step angle onto a F-1212 step rib.
The F-1202F bulkhead received four nutplates then the bulkhead was Clecoed onto the F-1212 step ribs for riveting. The pneumatic squeezer was used to set AN470AD4-4 solid rivets in the top two rows of rivets and the remaining rivet holes that the squeezer could not reach received LP4-3 rivets with the exception of the two flush rivets in the corners called out in the plans. There are also four rivet holes the plans instruct the builder to skip, so they were marked with blue tape.
Using the pneumatic squeezer to set AN470AD4-4 solid rivets in the upper two rows of rivets securing the F-1202F bulkhead onto the F-1212 step ribs.
Riveting of the F-1202F bulkhead onto the F-1212 step ribs completed … blue tape on Clecos denotes holes not riveted at this time.