Amendment to CAO 100.24 – Approval of Maintenance Permissions for Large RPA - (CD 2524MS)

Closes 18 Nov 2025

Principal changes – Proposed amendment to CAO 100.24

Key change 1

Under Civil Aviation Order (CAO) 100.24 the Director of Aviation Safety (DAS) must approve each maintenance authority if the applicant is not a holder of a Part 66 AME licence.

The proposed amendment to CAO 100.24 would move the approval, for large Remotely Piloted Aircraft (RPA) only, to a more appropriate level of delegation within CASA, at which relevant information on the scope and risks of the intended operation of large RPA is known and assessed. This would enable a well-considered and more efficient assessment of the maintenance permission application, reducing administration and associated timelines for applicants.

CASA would amend existing paragraph 1.1 of CAO 100.24 and make an insertion at 1.1A, to the effect that paragraph 1.1 does not apply to an applicant for a maintenance authority that is for maintenance on RPA.

The proposed CAO amendment will keep the current competency standards required for a maintenance permission to be issued for large RPA (to be demonstrated by the applicant).

Under this proposal, both the approval process and the competency standards required for a maintenance permission to be issued for conventionally piloted aircraft under CAO 100.24 will not change.

The associated guidance material, Advisory Circular 101-01 - Remotely piloted aircraft systems - licensing and operations will also be updated at Section 7 to support the CAO amendment.

Key change 2

We will modernise language to use gender neutral terminology, remove obsolete application forms and CAO references and modernise email/postal submission methods within CAO 100.23 and 100.24.

Policy aim

To reduce the administration and time associated with the maintenance authority application/approval process required for large RPA.

To amend outdated terminology and application submission methods.

Link: Consultation Draft - Civil Aviation Orders 100.23 and 100.24 Amendment Instrument 2025 (No. 1)

Fact bank: Paragraph 1.1 and 1.1A of CAO 100.24

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Please provide any comments you may have on the principal changes proposed.