Continued stress in that area will lead to a rapidly expanding fracture. As your backstay becomes even looser, a few puffs of wind will either break the backstay or pull the chainplate out of the transom.Dear boatpoker, Thank you for the quick response. I've been reading up on fiberglass repair. Trouble is that it's right where the backstay connects to the chainplate. But why not sail her anyway? With a username like yours, thought you liked to gamble.