The same panel also fractured at the roof hatch. This fracture occurred earlier when I wasn’t doing anything unorthodox, though I’m not sure I was fitting the panel into the mold properly. I heard the fracture and later saw a slight discontinuity in the shade of the surface at the roof hatch on the inside, but I wasn’t sure what had happened, and the fracture wasn’t apparent from the inside. After the larger fracture occurred, I removed the panels and inspected the roof hatch fracture more closely.
