If the AF 330 had a SATCOM system then they would be utilising FANS am I right. The entire Atlantic is covered by a FANS system from Santa Maria, Atlantico, SAL and New York area.
Otherwise it would be only an HF/VHF system. but, if technical information is sent via the aircraft AIMS to maintenance then I'm assuming that there was a satellite link up or ACARS link up. Then from the last ACARS message or FANS position the aircraft's last position can be fixed within an hour flying radius...
Any ideas?