Originally Posted by
JJ21
what if hi jackers flew to a shorter destination, shut down the engines but ran the APU, would that cause the satellite "pinging" the news is talking about?
if they had to wanted to de load the cargo compartments/interior cabin maybe they kept the apu running? hence the "7 hours of flight time"
Supposedly the "pings" included engine performance data for trend monitoring, which indicated the engines were running in cruise conditions.