Project CS 13/28 - Preparation of an Advisory Circular dealing with the certification of software and complex hardware systems and subsequent revocation of CAO 103.05
Project closed 20 June 2014.
Project objectives achieved with the publication of AC 21-50 v1.0 - Approval of Software & Electronic Hardware Parts on the 22 of May 2014.
There is currently no guidance material on certification of airborne software and complex hardware systems. CAO 103.05 - Aircraft Equipment software - is obsolete for aircraft equipment. Legal Services Division is currently in the process of revoking CAO 103.5.
CAO 103.05 references industry standard RTCA/DO-178A - Software Considerations in Airborne Systems and Equipment Certification, and has been obsolete since 1992. Version A of RTCA/DO-178 is incompatible with current aircraft safety assessment processes detailed in SAE ARP4761 Guidelines and Methods for Conducting the Safety Assessment Process on Civil Airborne Systems and Equipment. The continued use of RTCA/DO-178A represents a possible safety risk as there are less safety design assurance levels in version A.
No other NAAs mandate the usage of RTCA/DO-178 and its usage is only a recommendation by NAA's through guidance material. (eg FAA AC 20-115C and EASA AMC 20-115).
Subpart 21M Authorised Persons have little expertise in this area. Authorised persons have previously requested guidance from AESB in regards to software and complex hardware systems. This AC will provide some framework in recognition of acceptable industry standards for software/complex hardware development.
No action of this project will fail to provide industry with relevant guidance in the development of software and complex hardware systems. This will cause industry to either not develop software/electronic hardware or provide solutions in isolation of CASA and accepted industry standards.
Generation of advisory circular on Software and Electronic Hardware approvals.
Revocation of CAO 103.05 - Aircraft Equipment software
Form 387 Certificates of Airworthiness Checklist 5 - Equipment Standards will require amendment to remove reference to CAO 103.05 once the order is revoked.
CAO 103.05, CASR 21.M
This project was approved by Peter Boyd on 22 October 2013
Standards Consultative Committee (SCC)
|Consultation updates in 2014|
|Project CS 13/28 - Preparation of an Advisory Circular dealing with the certification of software and complex hardware systems and subsequent revocation of CAO 103.05||Project closed.||20 Jun 2014|
|AC 21-50 – Approval of software and electronic hardware parts||AC Published.||21 May 2014|
|Draft AC 21-50 – Approval of software and electronic hardware parts||Comments to this AC closed 27 March 2014.||13 Mar 2014|
|Consultation updates in 2013|
|Project CS 13/28 - Preparation of an Advisory Circular dealing with the certification of software and complex hardware systems and subsequent revocation of CAO 103.05||Project approved.||24 Oct 2013|