[halo66]

I agree...do you know if the beacons on that Air France flight that crashed in the Atlantic transmitted a signal?

[CivilWarBrewing]

Upon further research, apparently MAL has not even confirmed that ELT's were on board. I guess it's up to each country to decide whether or not to use ELT's.

I believe Air France 447 carried ELT's but they weren't detected.

There's no evidence flight MH-370 crashed, although it could've smacked the water so hard that it disabled emergency beacons.