Port St. Mary, Isle of Man - At 4.30 p.m. on 28th March, 1970, the life-boat's motor mechanic told the honorary secretary that a fishing boat was signalling for assistance off Scarlet point. After confirmation from the coastguard the life-boat R.A. Colby Cubbin No. 2 slipped her moorings at 4.50. There was a north north westerly gale with a rough sea.

The tide was ebbing. The life-boat came up with the m.f.v. Silver Wave with a crew of two on board. A rope had fouled her propeller and she was drifting. The fishing vessel was taken in tow to Port St. Mary, and the lifeboat returned to her station at 6.10..