Deburred all parts of Rear Spar assembly Fig. 1 Completed steps 1 thru 6 on page 8-2. These steps consist of the Rear Spar, Rear Spar Doubler and the HS912 Hinge Brackets. Completed steps 1 & 2 on page 8-2. These steps consist of assembling the Inboard Hinge Brackets and bolting them to the Rear Spar Assembly. Torqued bolts to 25 in/pds.