In a submission to an Australian senate inquiry into airport and aviation security, the National LGBTI Health Alliance reported a "climate of pervasive discrimination" for LGBTI people.

The submission includes a lengthy complaint from an anonymous transgender person sent to one of Australia's major domestic airlines about an incident early last year.

The person was passing through airport security and was selected to go through a body scanner, which picked up a prosthetic worn in their underwear.

"I explained to the officer at the scanner that I am trans and that I was wearing a prosthetic, to which he responded that he would need to get his supervisor," the complaint reads.