Looking for a reference… craft bigger inside than outside?

Hi, fellow UFO nerds! I’m trying to track down something I know I’ve read online but can’t recall enough details to find it now. It’s a personal account of a historic craft retrieval (maybe Roswell?) in which one of the people present stuck his head inside the craft or part of the craft. He perceived that the interior of the craft was much larger than the exterior, and the disorientation of seeing such a thing made him sick.

Does this ring any bells? Anyone know what I can google to find this story again?

Thanks!