Enniskillen rower Leonora Kennedy and her partner Monika Dukarska just missed out on an automatic semi-final place at the World Championships in South Korea.
The Ireland pair finished fourth in the double sculls opening heat with only the first three progressing to the semi-finals in Chungju.
However, the Irish duo will have a further chance of qualification in Wednesday's repechage.
A top-three finish on Wednesday will be enough to progress to the semi-finals.
The Lithuanian boat won Monday's heat in 6:52.09 ahead of Denmark (6:56.34) and Ukraine (7:02.42) with the Irish pair exactly 1.5 seconds adrift of the third placers.
None of the Northern Ireland competitors will be in action at the championships on Tuesday.
The Chambers brothers Richard and Peter Chambers won their lightweight doubles sculls heat on Sunday while their fellow Coleraine man Alan Campbell took a comfortable win in his single sculls heats.