CNN Anderson Cooper 360 April 9, 2014 00:20:00
Pinger sound, or ricochet sound. the realtime, the scientists and technicians on the boat will be listening. >> pinger locaters have been used for years. in 1996, a tpl successfully located the black box for twa flight 100, in shallow waters off new york. investigators used one in 2009 when air france flight 447 went down in the atlantic but found nothing. if they have any luck locating the pinger from flight 370, next they will deploy this autonomous under water vehicle that maps the ocean floor. >> it will start to run patterns back and forth, shooting sound out the side and taking pictures....
Source: archive.org