Marine safety investigations & reports

Fatigue assessment report: Assistance to TAIC New Zealand for the grounding of Rena on Astrolabe Reef on 5 October 2011

Investigation number:
Status: Completed
Investigation completed


On 4 October 2011, the container ship Rena departed Napier, New Zealand, bound for Tauranga, New Zealand, with an estimated arrival time of 0300 on 5 October. At about 0214 on 5 October, Rena grounded on Astrolabe Reef.

The Transport Accident Commission (TAIC) of New Zealand is undertaking a formal investigation into this accident. As part of that work, TAIC requested the assistance of human factors specialists at the Australian Transport Safety Bureau (ATSB), to assess the likelihood and extent of any performance impairment to the master and second mate due to fatigue. To protect the information supplied by TAIC, the ATSB initiated an investigation under the provisions of the Transport Safety Investigation Act (2003).

Following the analysis of the sleep and work data supplied by the TAIC, the ATSB conducted analysis of the fatigue likelihood and produced a report which was provided to TAIC on 26 August 2014. For further information on this occurrence and investigation, please contact the Transport Accident Investigation Commission of New Zealand.

General details
Date: 05 October 2011   Investigation status: Completed  
Time: 0214 UTC +13   Investigation level: Defined - click for an explanation of investigation levels  
Location   (show map): Astrolabe Reef, New Zealand    
State: International    
Release date: 01 September 2014   Occurrence category: Accident  
Report status: Final   Highest injury level: None  
Last update 14 November 2018