When a rib is loose off the end block it can sometimes be repaired without taking the top off. This saves time and money. I recently repaired a rib without removing the top. First I completely removed the rib from the block. At that time I realized that the lining was also unglued from the rib. Here are some shots of how I first glued the lining back and then glued the rib back onto the block.

IMG 20170515 110138	IMG 20170516 113317	IMG 20170516 120515
IMG 20170520 174611