I had heard about that when I bought mine, hadn't seen it, but was told it happened. In the endI just placed my engine in the right place, drilled holes all the way through, then back cut the balsa fuse tripplers with sharpened 1/2 inch brass tubing, installed Tnuts and replaced the cutout pieces of wood with a little poxy and puddy. After sanding I put 3/4 ounce cloth over the mess and finished it up and painted, you'd never know. Now it's been sitting like that for a year, but I'll get around to it someday I recon. Dang wife, kids and job.