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The crew reported that they received a cockpit warning during climb passing through FL 310. In accordance with company procedures the flight was returned for an uneventful landing at the departure runway. Post flight examination found the number 3 Air Data reference Unit had failed. The unit was replaced and all systems tested normal. The aircraft then returned to service without further incident.

Download Final Report
[ Download PDF: 13KB]
General details
Date: 15 September 1997 Investigation status: Completed 
Time: 11:15 EST  
 Investigation type: Occurrence Investigation 
 Occurrence type: Warning devices 
Release date: 19 September 1997 Occurrence class: Operational 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: Airbus 
Aircraft model: A320-211 
Aircraft registration: VH-HYA 
Sector: Jet 
Damage to aircraft: Nil 
Departure point:Melbourne Vic.
Destination:Launceston Tas.
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Last update 17 March 2016