Graybeard, I believe the ADS-C reports are initiated by a human being. If so, the crew was alert in the cockpit at 0201.
Only three attempts were made to connect up to the Dakar centre ADS-C system and were recorded on 1st June at 1 h 33, 1 h 35 and 2 h 01. The three requests were refused with a FAK4 code,....