The doublers were reinforced with JB Weld (cleaned and roughed surfaces first) and the extra new pin bolt is a stainless 6-32 bolt with a locknut.
In the second photo, you can faintly see the crack on the original flaperon riser.
Here's the pics:
|The original failed part is in the middle of the aluminum sandwich, above.|
|6-32 stainless bolt with washer.|
|Right wing riser with reinforcements. This one wasn't cracked.|
|Outboard flaperon riser with doubler. We reinforced both outboard left and right flaperon risers.|
|Inboard flaperon riser with triplers, JB Weld, and bolt (which will be trimmed).|