Aviation safety investigations & reports

Pressurisation event involving Airbus A330, VH-EBK, 235 NM (435 km) south-west of Adelaide, South Australia, on 5 February 2021

Investigation number:
Status: Active
Investigation in progress


The ATSB is investigating a pressurisation incident involving an Airbus A330, VH-EBK, on 5 February 2021.

While en-route from Melbourne to Perth, at about 1405 UTC (0035 CSuT) and approximately 235 NM to the south-west of Adelaide, the flight crew conducted an emergency descent from 40,000 feet to 10,000 feet due to a depressurisation indication. An emergency was declared to air traffic control and the aircraft diverted to Adelaide, where it safely landed at 1533 UTC (0203 CSuT).

The evidence collection phase of the investigation will include interviewing the flight crew, collecting maintenance data, and reviewing recorded flight data.

A final report will be released at the conclusion of the investigation. However, should a critical safety issue be identified during the course of the investigation, the ATSB will immediately notify relevant parties so appropriate safety action can be taken.

General details
Date: 05 February 2021   Investigation status: Active  
Time: 1405 UTC (0035 CSuT)   Investigation level: Defined - click for an explanation of investigation levels  
Location   (show map): Approximately 235 NM (435 km) south-west of Adelaide   Investigation phase: Evidence collection  
State: South Australia   Occurrence type: Air/pressurisation  
  Occurrence category: Serious Incident  
Report status: Pending   Highest injury level: None  
Anticipated completion: 1st Quarter 2022    

Aircraft details

Aircraft details
Aircraft manufacturer Airbus  
Aircraft model A330-202  
Aircraft registration VH-EBK  
Serial number 0945  
Operator Qantas Airways Limited  
Type of operation Air Transport High Capacity  
Sector Jet  
Damage to aircraft Nil  
Departure point Sydney, NSW  
Destination Perth, Western Australia  
Last update 18 February 2021