At 1.50 p.m. on 5th August, 1967, the coxswain was informed that a dinghy had capsized off Seapoint. The life-boat John F. Kennedy slipped her moorings 10 minutes later in a fresh southerly wind and a choppy sea. The tide was ebbing.

The casualty was found 100 yards off the Seapoint martello tower. Her crew of two were clinging to her keel. They said they would prefer to swim ashore and the life-boat stood by while they did so. The dinghy was then taken in tow to Dun Laoghaire and the life-boat returned to her moorings at 3.5..