Since this thread has gone well off topic, allow me to continue....I would be interested in any comments on this...
I was among the passengers bussed out to a KQ E190 at Addis Ababa recently. On arrival at the aircraft, boarding was done with passengers being allowed onto the a/c in groups of max 5 people "because the a/c was being refuelled".
I have never encountered that before, what is the logic? Is that a KQ thing? An Addis airport thing? An ICAO thing ?