The pilot was issued with an amended clearance "Radar Two West Maitland 3000" and was instructed to turn left heading 290 degrees and report leaving 2000 ft. After takeoff the aircraft maintained runway heading and penetrated Sydney Control Zone to a point 6 NM west of Sydney. VH-CJA, a Cessna 402, was in potential confliction with VH-TJH, a Boeing 737, on final approach for runway 07 at Sydney. Civil Aviation Authority Aeronautical Information Circular (AIC) Sydney (Kingsford Smith Airport) 17/93 dated 2 April 1993 stated that "Bankstown Air Traffic Control will instruct pilots in VMC by day, to remain clear of the Sydney CTR when departure instructions have been issued by Sydney ATC which require left turns to headings that will enable the aircraft to remain clear of the Sydney CTR". The pilot of CJA was not issued with instructions in accordance with AIC 17/93 and had not remained clear of the Sydney Control Zone as required by the Aeronautical Information Publication. Safety Action: The safety deficiency identified during this investigation resulted in the following Safety Advisory Notice being issued on 30 September 1993. "The Bureau of Air Safety Investigation suggests that Air Traffic Services and Safety Regulation Divisions of the Civil Aviation Authority review procedures in respect to the Bankstown Runway 11 Radar Two Departure."