Source document: https://docs-lawep.s3.us-east-2.amazonaws.com/1697628331511.pdf (Australia)
Defence Portfolio COMMITTEE INQUIRY QUESTION (Question No.2) Mr Pat Conroy MP asked the Department of Defence, upon notice, on 15 September 2021: Mr Conroy: At last year's hearings, we heard there were deficiencies with the C-27J's electronic self-protection system.

What are those deficiencies?

Air Vice-Marshal Roberts: The electronic warfare system itself is being retained on the C-27J.

We would have liked, in the original concept, to have upgraded and changed the electronic warfare system.
It does have a functional electronic warfare system on it; it's just not going to be upgraded to the levels that we need to continue to operate against high-end threats.

Mr CONROY: There were also deficiencies with the attitude direction indicator.

Do those still exist and, if so, can you explain what that means?

Air Vice-Marshal Roberts: Mr Conroy, I'd have to get back to you on that.

I'm not familiar with that particular deficiency.


To my knowledge, it is definitely not a safety issue on the capability, but I'd have to get back to you on the details of that particular report.

Mr Pat Conroy MP – The Department of Defence has provided the following answer to the Senator’s question: The attitude direction indication issues specifically relate to mis-alignment of the Heads Up Display.
The mis-alignment of the Heads Up Display contributed to some safety issues during introduction to service, specifically a requirement for close and careful crew management of the final stages of the approach to land on short airfields.

High priority was given to rectifying the mis-alignment and the issue has been addressed by an innovative Australian-designed calibration procedure developed in collaboration with the aircraft manufacturer.
Inquiry into the Defence Major Projects Report 2019-20Submission 2 - Supplementary Submission 2