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The aircraft was issued with an airways clearance to climb straight ahead from runway 34 and maintain 3000 feet. The pilot called airborne and reported on climb to 3000 feet. There was no Secondary Surveillance Radar (SSR) altitude readout evident. The pilot was then cleared to climb to 4000 feet but still no SSR readout was displayed. At approximately 10 nautical miles north of the airport the height readout appeared, indicating 4400 feet. When the pilot was queried he reported on descent to 4000 feet. The pilot later reported that he had set 4000 feet on the assigned altitude indicator and subsequently noticed that he had inadvertently climbed to 4200 feet. The pilot also reported that he had noticed the encoding altimeter on the co-pilot panel had not been set to QNH and was indicating 200 feet higher than the pilot's altimeter.
Download Final Report
[ Download PDF: 12KB]
 
 
 
 
General details
Date: 02 February 1993 Investigation status: Completed 
Time: 9:12 ESuT Investigation type: Occurrence Investigation 
 Occurrence type:Operational non-compliance 
 Occurrence class: Airspace 
Release date: 30 August 1993 Occurrence category: Incident 
Report status: Final  
 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-31-350 
Aircraft registration: VH-ATP 
Sector: Piston 
Damage to aircraft: Nil 
Departure point:Sydney NSW
Destination:Coonabarabran NSW
 
 
 
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Last update 23 July 2015