The CAA is committed to enhancing aviation safety and security through thorough and impartial investigations. Our primary investigation purpose is to gather unbiased, comprehensive facts that will inform regulatory decisions and support actions to improve aviation safety.

The investigation process is designed to be transparent and collaborative. Throughout this process, we prioritise effective communication with everyone involved, ensuring they’re kept informed of progress, and of decisions as appropriate.

Our process

1. Upon an accident, occurrence, or allegation of non-compliance, CAA investigators may conduct initial enquiries to understand the circumstances to:

  • address any immediate safety concerns
  • determine the necessity of any further enquiries.

2. During the investigation, parties involved will be kept informed of:

  • Our intentions and decisions
  • Relevant timeframes
  • Progress updates

3. Sometimes other agencies may have an interest in conducting investigations independent from the CAA. When this happens, the CAA may need to collaborate and coordinate with Worksafe, the Transport Accident Investigation Commission (TAIC), and NZ Police.

Purpose of investigations

The CAA performs a range of functions, which includes:

  • investigating accidents and occurrences
  • ensuring adherence to aviation legislation.

The primary objective of these investigations is to collect comprehensive facts that identify and support an appropriate range of outcomes to enhance aviation safety.

Possible outcomes of an investigation are:

  • sharing safety messages relating to the cause and factors that contributed to the accident or incident
  • improving the civil aviation rules
  • improving our regulatory practice
  • informing, advising and educating industry and/or specific participants about rules and safety standards
  • taking regulatory action after consideration of the relevant Act and our Regulatory Decisions Operational Policy which has public interest and just culture principles at its core.

Decision-making framework

Our decisions are in accordance with our Regulatory decisions operational policy.

We observe the principles of natural justice and will ensure that involved parties will be given the opportunity to be heard and comment on any investigation findings before any decisions are made.

While CAA investigators conduct investigations, they do not make final decisions on whether to take any regulatory action.

For significant events an independent panel, possessing appropriate subject matter expertise, will: – review all facts upon the conclusion of an investigation – utilise the CAA’s regulatory decision-making model to determine the most appropriate outcomes ensuring public interest and just culture principles are applied.

For other matters, decisions will be made by an appropriately qualified and experienced manager.

Standards of conduct

CAA investigators adhere to the following standards:

  • Openness, transparency, and effective communication
  • Treating all people with respect, consideration and kindness
  • Compliance with all lawful obligations and requirements
  • Professional conduct and communication at all times
  • Commitment to acting in good faith
  • Timeliness in conducting investigative work
  • Maintenance of privacy rights for all individuals
  • Provision of information regarding rights and obligations

These standards are underpinned by our values of collaboration, transparency, respect and professionalism.

The evolution of our investigations approach

The current approach to investigations has been in place since early 2024, following an independent review in 2023. The recommendations of review were that the Authority:

  • Make better decisions about what it chooses to investigate
  • Reset its investigation approach so it aligned with the Authority’s purpose
  • Improved its investigative workflows, process and practices, and
  • Lifted the leadership and management of the investigation function and its teams

It also clarified that the Transport Accident Investigation Commission is New Zealand’s ICAO Annex 13 independent safety investigator, and that the CAA is not authorised to be a replica of the Transport Accident Investigation Commission.

More information about the independent review and our subsequent change programme can be found here:

Changes to CAA investigation practices

Update on changes to CAA investigation practices

The benefits of shifting our approach are:

  • Urgent safety matters are identified and addressed
  • Important safety messages are not delayed by unnecessary processes
  • We focus our resources on the right things
  • There is enhanced integrity in the system
  • Procedural safeguards are in place to ensure we do the right thing
  • Better outcomes for victims
  • Investigations are timely, objective, and impartial, and follow a fair process
  • Improved communication and transparency