Partial power loss involving a S.A.A.B. Aircraft Co SF-340B, VH-LIH, Point Lookout, VOR, NSW on 5 December 1997

The pilot reported that during a flight from Sydney to Lismore the right engine suffered two "rollbacks". Rollback is a phenomenon in which aircraft engines lose power. On the subsequent flight to from Lismore to Sydney the right engine suffered one "rollback". The problem is a known fault and can be caused by icing at the inlet cowl area.