Andrew Hirsch, NSRI Bakoven duty coxswain, said:At 13h27, Wednesday, 22 July, NSRI Bakoven and NSRI Table Bay duty crews were placed on alert following reports from Transnet National Ports Authority (TNPA) of a Rigid Hull Inflatable Boat (RHIB) with 4 crew onboard, a father, his 2 sons and a son in law, requiring assistance in Table Bay after their boat had suffered electrical motor failure.They had contacted Cape Town Port Control to raise the alarm.It was initially believed that they were close off-shore of Three Anchor Bay and NSRI crew responded to the shoreline to get visuals of the casualty craft.It was then determined that they were in Table Bay closer towards Robben Island and NSRI shore crew obtained a visual of the casualty craft which appeared to be at anchor.The NSRI Bakoven sea rescue craft Rotarian Schipper was launched from the NSRI Table Bay sea rescue base and following a brief search and with some guidance from the NSRI shore crew who had maintained a visual, the casualty craft was located with her 4 crew safe onboard but they needed help to get back to shore.A towline was rigged and we towed them to OPBC (Oceana Power Boat Club) without incident and once their boat was recovered they required no further assistance.