Review of legacy airworthiness directives unique to Australia

Closes 14 May 2026

Proportionality and alternatives

16. Are there alternative approaches you believe would better manage structural fatigue risk than retaining these ADs in their current form?

(Select all that apply)

17. Do you have any comments on the proposed direction for air transport operations? Are there any aircraft types, usage profiles or operating environments where it would be appropriate to retain some form of regulatory requirement?

Proposal – Air transport operations – ageing aircraft continuing airworthiness management

Consistent with our regulatory philosophy, CASA applies a risk based regulatory approach, with the highest safety priority given to commercial passenger transport operations.

Following the repeal of any fatigue ADs, CASA proposes to issue a direction requiring that ageing aircraft considerations be addressed in the continuing airworthiness management of aircraft used in air transport operations. Under this direction the registered operator would be required to have a system in place to monitor the aircraft manufacturer’s instructions for continuing airworthiness that relate to ageing aircraft safety, and take appropriate action as required.

CASA considers this direction emphasises an existing continuing airworthiness management responsibility of AOC holders for air transport operations

The following continuing airworthiness arrangements would be considered sufficient to meet the intent of the direction:

  • compliance with the manufacturer’s maintenance schedule (i.e. maintaining the aircraft in accordance with the manufacturer’s instructions for continuing airworthiness);
  • an approved system of maintenance that is being kept up to date by the operator; or
  • an approved maintenance program under CASR Part 42.

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