Originally Posted by
rubberband2
So here are 3 simple questions:
1 What system & antenna aboard MH370 continued to send the pings?
2 What system & antenna aboard MH370 sent the R-R data engine monitoring data?
3 When did these two data streams cease?
1. SATCOM
2. None. The early media reports regarding a British company having sussed out the flight's existence post-comms blackout assumed it was Rolls Royce rather than Inmarsat.
3. 00:11 GMT for a complete ground-initiated hourly handshake while at 00:19 GMT there was an unscheduled handshake (assumed to be aircraft initiated) that was incomplete. This last partial ping suggests the possibility of the Left Main AC bus having been lost and reenergized momentarily.