Install port rear spar strut fittings (7V4-4)

Rear upper strut fitting (7V4-4) install at trailing edge of rib #3

Installed rear upper strut fitting (7V4-4) to rear channel at rib #4.  Difficult assembly (pg 7V5).  Requires 12 A5 rivets through 7V4-4 into rear channel, a short L-angle doubler at the rear channel and flaperon mount; and a longer l-angle bent to match the bottom surface of the wing lying along the rear channel.  All require A5 rivets in tight spaces.  Angle drill required.