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On climb out of Brisbane the crew had problems with the No 2 engine bleed and at the cruising level of Flight Level 310 were unable to control the cabin pressurization. The aircraft descended rapidly to 10,000ft and returned to Brisbane. The problem was isolated to a failed duct. The aircraft was already operating on an MEL due to the No 1 airconditioning pack being unservicable. Therefore, with the failure of the No 2 pack, pressurization was unable to be maintained. The Company is assessing the need to limit departures with one airconditioning pack inoperative.
Download Final Report
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General details
Date: 14 July 1992 Investigation status: Completed 
Time: 10:30 EST  
 Investigation type: Occurrence Investigation 
 Occurrence type: Air/pressurisation 
 Occurrence class: Technical 
Report status: Final Occurrence category: Incident 
Aircraft details
Aircraft manufacturer: Airbus 
Aircraft model: A320-211 
Aircraft registration: VH-HYC 
Sector: Jet 
Damage to aircraft: Nil 
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Last update 23 July 2015