Added 0.062" aluminum stiffeners to the shoulder harness mounts on the top longeron. Cleaned the bonding surfaces on the turtleback and the air frame where the turtleback will be attached. Installed 1/8" thick sound deadening foam to the baggage floor.
Installed the turtleback using DuroMix (3M) urethane panel adhesive, and #4 Avex rivets set flush.
