lionel 6-25646 SF “Scout” heavyweight 4 pack truck casting failures (truck side frames not usable, completely disintegrated when run), bought new from dealer.
Lionel 6-25651 SF “Scout” heavyweight 2 pack truck casting failure (truck side frames not useable, completely disintegrated when run) , bought new from dealer
Lionel 6-38081 JLC C&O Allegheny, tender water doors- casting failures, running board warping-casting failure, cylinder exhaust piping- casting failure.
Atlas O 3001001 53’ American express reefer, trucking casting failure
Lionel Classics std gauge 400e blue comet engine, frame casting failures , I do not own this one , but I have seen several examples of this issue at York train show.