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On 30 August 2013, a Boeing 737 aircraft, registered ZK-NGI, was involved in a cabin depressurisation incident near Auckland, New Zealand.

An investigation into the circumstances of this incident is being conducted by the Transport Accident Investigation Commission (TAIC) of New Zealand. The TAIC investigation reference is 13-008 / AO‑2013-008.

TAIC requested assistance from the Australian Transport Safety Bureau (ATSB) in the download of the aircraft’s cockpit voice recorder (CVR). To facilitate this support and to provide the appropriate protections for the CVR information, the ATSB appointed an accredited representative in accordance with paragraph 5.23 of ICAO Annex 13 and commenced an investigation under the Australian Transport Safety Investigation Act 2003.

The CVR was hand-carried to the ATSB’s facilities in Canberra by a TAIC officer and was downloaded on 5 September 2013. The downloaded audio and a replay report were provided to TAIC.

TAIC is responsible for releasing the final investigation report regarding this incident.




Released in accordance with section 25 of the Transport Safety Investigation Act 2003.


General details
Date: 29 August 2013 Investigation status: Completed 
Time: 2019 UTC  
Location   (show map):South of Auckland, New Zealand Investigation type: External Investigation 
State: International Occurrence type: Air/pressurisation 
Release date: 24 October 2013 Occurrence class: Environment 
Report status: Final Occurrence category: Serious Incident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 737-300 
Aircraft registration: ZK-NGI 
Operator: Air New Zealand 
Type of operation: Air Transport High Capacity 
Sector: Jet 
Damage to aircraft: Nil 
Departure point:Wellington, NZ
Destination:Auckland, NZ
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Last update 12 January 2017