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The Aero Commander was cleared to descend to 5,000 ft, on track from Richmond to Bankstown. Shortly after, the pilot was instructed to contact Sydney Approach, who then gave him a radar vector to track south of Richmond direct to Westmead. The controller subsequently observed the radar height display of the aircraft indicated 4,400 ft and informed the pilot that he had descended below his assigned altitude. After being instructed to maintain 4,000 ft the aircraft was processed normally to Bankstown.The pilot later reported that he descended below his assigned altitude when he misread his assigned altitude indicator, whilst changing frequency to Sydney Approach. He was also expecting a requirement to be at 2,000 ft by 22 DME Sydney, as he had experienced on previous approaches into Bankstown.
Download Final Report
[ Download PDF: 12KB]
General details
Date: 18 March 1993 Investigation status: Completed 
Time: 18:50 ESuT  
 Investigation type: Occurrence Investigation 
 Occurrence type: Operational non-compliance 
Release date: 26 May 1993 Occurrence class: Airspace 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: Aero Commander 
Aircraft model: 681 
Aircraft registration: VH-NYE 
Sector: Turboprop 
Damage to aircraft: Nil 
Departure point:Tamworth NSW
Destination:Bankstown NSW
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Last update 23 July 2015