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The ATSB is investigating the descent below the radar lowest safe altitude involving a Boeing 777, registered ZK-OKN, near Brisbane Airport, Queensland, on 18 November 2017.

The flight was tracking via the SAVER 1A STAR for runway 01 and the flight crew were cleared to descend to 3,000 ft. Shortly after the aircraft was observed to have descended to 2,500 ft. The flight crew were alerted to the error, but the aircraft continued descent to about 2,000 ft.

The investigation is continuing and will involve reviewing recorded data, interviewing the flight crew and gathering additional data.

 
General details
Date: 18 November 2017 Investigation status: Active 
Time: 9:24 EST Investigation phase: Final Report: Approval 
Location   (show map):23 km S Brisbane Airport Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Flight below minimum altitude 
 Occurrence class: Operational 
Report status: Pending Occurrence category: Incident 
Expected completion: 2nd Quarter 2018 Highest injury level: None 
 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 777-319ER 
Aircraft registration: ZK-OKN 
Serial number: 38406  
Operator: Air New Zealand 
Type of operation: Air Transport High Capacity 
Sector: Jet 
Damage to aircraft: Nil 
Departure point:Auckland, NZ
Destination:Brisbane, Qld
 
 
 
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Last update 18 April 2018