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Safety in Aircraft Design in NZ

  • 2022-08-25
  • 2022-09-22
  • 2 sessions
  • 2022-08-25, 12:00 13:00 (NZST)
  • 2022-09-22, 12:00 13:30 (NZST)
  • Online via Zoom

Join us for a two-part webinar with Ben Vos, MEngNZ, NZSSE, ex-Fokker design engineer (e.g. NH90), ex-Design Delegation Holder of CAANZ and Design Control of a Part 146 Design Organisation.

Part One: Thursday 25 August, 12–1pm
Part Two: Thursday 22 September, 12–1.30pm


Part I: “Code of Practise” for safety in aircraft.
This is an introduction and will take up to one hour.
Learning outcomes, providing information on:

  • New Zealand has developed and manufactured aircraft in the past and will continue to do so in the future.
  • Most of the work engineers do are alterations and bespoke repairs on aircraft, with an emphasis on General Aviation.
  • New Zealand is bound by conventions and annexes from the International Civil Aviation Organisation.
  • Civil Aviation Authority is the NZ crown entity, regulator and authority who approve designs, certify design firms (Rule Part 146 certificated Design Organisations) and license hands-on men/women (i.e., pilots and maintenance personnel); they also do their surveillance and audits.
  • Design firms employ engineers, sign Statements of Compliance and ultimately achieve the position of Design Delegation Holders (DDH) by CAANZ.
  • DDH persons are decision makers of CAA, judging – and signing - a design to be airworthy, albeit within strict limitations.
  • There are tight systems in place for ensuring Continued Airworthiness of aircraft leading to Airworthiness Directives.
  • The Transport Accident Investigation Committee (TAIC) gets involved investigating in case of accidents with casualties and does not apportion blame or liabilities to those found responsible.
  • Independent regulatory peer review is limited to major modifications, all design data is checked in-house.
  • The role of the Royal Aeronautical Society (RAeS) being a professional body for engineers in the aviation space.

Part II: Design Codes, Standards and Best Practice For Aircraft Design
This has more technical content, and will potentially take up to 1 1/2 hour.
Learning outcomes, providing information on:

  • A brief outline of key Civil Aviation Rules issued by CAA for design engineers Parts 12, 21, 26, 146 and 91.
  • An overview of the aircraft’s “design code”: the compulsory FAA FAR rules, Parts 23, 25, 27 and 29 and their amendments.
  • Advisory Circulars: formal non-compulsory information on rule interpretation, an “acceptable means of compliance to the rules” and policy information from the authority.
  • What common “Standards” are used.
  • NZ-specific “Additional airworthiness requirements”: CAA CAR Part 26.
  • The Technical Standard Order (TSO) system for aviation grade components, equipment and appliances.
  • Criteria for the classification of major design changes (“Schedule One”)
  • The “Change Product Rule” establishing reasonably practicable for aviation design as industry standard.
  • My comments on MBIE’s proposal of compulsory registration for engineers in aviation.
  • Suggestions for bridging gaps between aviation design and Engineering New Zealand.

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