Titan 404
My point is that the powers that be are being very loose with the facts in saying it was 1/2 an hour into the flight and not about 1 minute near ground level. Also having way too many years than I want to remember in the industry, this is the first time in all the many engine failures I have seen and heard that a Mayday was called. Pilots normally advise thay have a problem and need to return- with no Mayday let alone a Pan call.
I reiterate , 1 engine out is normally a non-issue in a 747. As for ICAO procedures , airlines here have a very loose interpretation of them. The RAAF are the only ones in OZ who do the right thing in regard to them.