Originally Posted by jevanb
sounds like the underwater acoustic beacon attached to the FDR is inop, it does have a limited life but our underwater network should of picked up it signature ping
As you know,those beacon batteries are part of an air carriers maintenance program and should be replaced or tested ( whatever method is approved for them) as called out by the program. I believe (but not sure ) that their operating life is longer than the amount of time the aircraft crashed has been.
I have read that in some cases, the Ping has been blocked if the fuselage wreckage is laying over it.
Don't know much more. I'm a little surprised that the media is saying two oil slicks have been spotted that could have come from the aircrafts fuel tanks.
Oil slicks from fuel tanks?