SAM1191 post number #45
If this is accurate then it puts the aircraft 4 hours 20 minutes into the flight and some 500 NM SSW of the Cape Verde Islands.
So why did the Brazilians launch a SAR mission? The aircraft, at that time, would have been well clear of Brazilian airspace and closer to West Africa.
An earlier report of severe weather in the area is also significant.
CAT leading to catastrophic airframe failure?