Operational non-compliance involving a British Aerospace PLC BAe 146-200-11, VH-JJS, Bowen, QLD on 22 April 1993

During the climb, the aircraft was given an amended clearance to track direct from Bowen to Innisfail. The clearance was read back correctly. The aircraft was later observed to deviate from the cleared track and the air traffic controller asked the crew to confirm their airways clearance. He was told that the aircraft was tracking to Townsville (which was the original planned track). There was no breakdown in separation with other aircraft. The aircraft was then cleared to track direct to Innisfail from its present position. The pilot-in-command later indicated that the Townsville waypoint had inadvertently been left in the Omega Flight Plan and as a result the aircraft tracked to that position instead of along the revised route.