CNN CNN Spotlight April 5, 2014 02:07:00
Chris, would they have started the underwater search any earlier? >> well, no. to be honest, the underwater search is limited in that we really need a smaller search area. so the towed pinger locater, the thing weve put in the water just earlier yesterday, can only search about a mile away for a location. until we have some indication where the plane might have gone or have we seen some surface bedebris, it wouldnt have done a whole lot of water. >> the black box batteries were due for overhauls...
Source: archive.org