The Lizard lifeboat launched shortly before 1pm on Monday 11 July to go to the assistance of a yacht, in a position seven miles SE of the lifeboat station.
A 40ft yacht was suffering from engine failure with four people on board including their pet dog.
The yacht was safely towed into Carrick Roads, where the tow was passed to a tender from Mylor Yacht Harbour. The lifeboat was back at the station and ready for service by 4pm.