Published Friday, 16 December 2011
The tanker, which was en route to New York, got into difficulty 40 miles north west of Tory Island on Friday morning after leaving Rotterdam.
A crack was spotted running along the deck during inspections in Rotterdam but it was deemed safe to put to sea.
Darragh O'Malley Daly, from Malin Head Coastguard, said the 23 crew members on board the Genmar Companion were never in danger at any stage.
"This is a precautionary measure to check the vessel out."
"No structural damage was caused to the vessel's hull or any part of the tanks on the vessel."
The tanker is expected in Belfast port tonight for inspections of the hull and where repairs are to be carried out.
An Air Corps plane was sent to the scene to monitor developments and the naval vessel, the LE Niamh, is en route to the tanker.