BIL had one fall off once on his Eagle 351MKTS FW while towing to a CG..., and he didn't know it until he opened his slide....... CRUNCH! The slide jammed about 6" short of being fully opened.
We couldn't see anything from the outside but I was able to reach up onto the slide roof from the inside and picked up pieces of glass. Long story short, the ceiling light puck lens fell onto the slide roof while in tow...., well, you know the rest of the story.
No damage to slide roof or seal, but the slide had to be re-aligned do to the one end being jammed. The realignment process was fairly easy with the top mounted slide drive motor(s) set-up.
2016 GM 2500HD 6.0L/4.10
2005 Jayco Eagle 278FBS
Reese HP Dual Cam
Putnam Class V