I went to look at 94 Eyra back in September with a marine surveyor. He took a small hammer with a rounded head and tapped lightle on the transom area. Basically youre listening for a difference in sound. A hollow sound may indicate delamination or core separation. A dull sound suggests high moisture content and a very dull sound suggests rotten core material. A sound structure will produce a clean “click” with very little bounce back of the hammer. Of coarse this is after you inspected the transom area for any cracks.
