Once again, we rely on outdated technology. No ELT transmissions received. This will only increase the pressure for industry wide deployment of REAL TIME FLIGHT DATA TELEMETRY.
And not before time.
Let's not confuse the issue here. This isn't MH370. The AirAsia flight was actively being tracked both on primary radar and via ADS-B. And the plane was communicating with ATC just 1 minute before contact was lost.