Introduction

DASR SPA.40 Defence Long Range Operations (DLRO) requires Military Air Operators (MAO) to establish a DLRO management system for Defence aircraft. The AMC and GM to DASR SPA.40 provides the context under which technical assessment of Defence aircraft for suitability to conduct DLRO will be undertaken, and in-service DLRO management requirements will be established, as part of the MAO's risk assessment considerations. DASR SPA.40 applies to fixed wing multi-engine turbine aircraft operated by Defence that may carry Defence personnel on long range flights.

The determination of whether a Defence aircraft is subject to DLRO management is a capability and safety decision for the MAO. To support informed risk-based decision making on the technical suitability of a Defence aircraft to conduct DLRO, technical assessment of affected Defence aircraft must be undertaken.

To support this technical assessment, the Authority has adopted the following approach to prescribing design requirements for DLRO:

  • an analysis of the aircraft design features that support safe DLRO must be conducted against relevant civil EDTO standards
  • shortfalls against the civil EDTO standards, and potential design risk treatments, must be identified
  • the shortfalls must be communicated to the MAO for a determination on whether operational controls would be effective in treating the risk, or whether design treatment will be required
  • a continuing airworthiness program (i.e. a system of maintenance and a performance monitoring program) must be established to ensure that the design features that support safe DLRO are not compromised in service.

What We Do

DASA performs the following roles for DLRO:

I Want To Learn More…

If you want to learn more about DLRO, please consult the following resources:

Factsheets

Regulation Links

Support

If you have questions about this topic please contact DASA DTS Enquiries.

For DASR queries please submit a DASR Query Form (DQF) Form 110