The right flipper pawl had been tightened to the point of deformation, as well as popping the welded head off the machine screw. I had to use a screwdriver to bend its arms apart enough to remove it.

I found a new pawl in our bin of flipper rebuild kits, and attached it, only to find that it was a pawl for a left flipper. I also wanted to replace the white plastic bushing, but the 3 screws holding it in place are very tight and just strip out, so I left the bushing alone.

We will have to await the delivery of right-side flipper parts before getting this working.