Brief Description: Installed and Sealed Doublers (SB 13-12-19)
Cleaned out countersunk portions of holes in tank brace. Covered doublers in thin layer of sealant and laid inside tank and clecoed in place. Dipped rivets and installed. Dipped screws for inboard corner and installed with called out hardware. Dipped and installed remaining rivets that were removed for access (MSP-42 rivets for corner clips and AD-41H for rivets for skin). Slathered a generous layer of sealant on inside corners and over rivets and nuts. (steps 13 through 16)