10/31/19 6.1Hrs Step 1: FF-00090A was placed onto the muffler assembly.The FF-00090A was secured along with the HW-00022 with the screw aligned with the seam and both located on the lower aft portion of the muffler assembly. Step 2: FF-00090L was assembled with the appropriate hardware leaving a space of 31/8" between the nuts. Step 3: FF-00090J was separated into 5 pieces. Step 4: The 5 FF-00090J were riveted to the FF-00090H.