FR64/66s Arm Rest repair?

Little metal pipe that holds the arm rest/clasp has snapped off right where it feeds into the fitting (same fitting that holds the arm lift). Little piece fragment metal from the pipe even appears to be hiding inside the hole. Can’t find any screws to access this part. Anyone know who can repair this?
Took an entire day fishing a broken piece of steel out of a 2mm cavity, but alas it was done and its been repaired DIY. But knowing, just knowing that the arm rest now sits a mere 6mm shorter than was originally designed will eat away at my soul. Ah joy.