IFR Ratings – 65% in the USA – 16% in Oz – and Even Less with ADSB Mandate

[Old Akro]

I'm sure we'll get a LAME correcting this, but in my experience it seems to vary depending on LAME, type of aircraft, the last time an electrical load analysis was done and the last time a weight & balance was done.

But yes, a simple ADS-B installation (in Australia) may require one or more engineering orders, an electrical load analysis and potentially even a re-weigh.