RedactedNarrative: On Saturday August 2 at approx. 1530hrs vessel was traveling on KY Lake near the Hwy. 79 bridge.  Operator was traveling south when his engine struck an unknown underwater object in a shallow portion of the lake.  The impact ripped the engine loose from the transom and the engine was subsequently hanging from the boat by only the cables connecting it to the boat.  Upon arrival we assisted operator in contacting a towing service who came to retrieve the boat.