The position of the Boeing 767 was displayed incorrectly on the
Brisbane sector controller's Air Situation Display (ASD). The
aircraft passed ATMAP at 0404 Coordinated Universal Time and was
estimating Curtin at 0503. At 0404 the aircraft was displayed on
the ASD just south of Bali with an estimate for Bali of 0404. Bali
ATC had previously advised Brisbane ATC that the aircraft was
estimating ATMAP at 0404. As the aircraft was not within radar
coverage and not fitted with Automatic Dependant Surveillance
equipment, the ASD displayed the aircraft position consistent with
the input data, not the aircraft's actual position.
The investigation revealed that the controller had used the
electronic strip intending to enter the time of 0404 for ATMAP, but
instead entered 0404 as the time overhead Bali.
There was no infringement of separation standards.